#Torn between which mount to get

394 messages · Page 1 of 1 (latest)

weary crane
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Since my EQ-35 Pro was a total lemon with terrible build quality, I am kinda against getting another Sky-Watcher

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Currently I am thinking of either:

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iOptoron GEM28 - £1,389.00

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iOptoron CEM26 - £1,340.00

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I like the CEM being center balanced. It seems like it will put less stress on the components over time and of the little tracking data I have found from it, it seems great.

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GEM28 is internally identical

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Both use belt drive and have really quiet motors and nice keypads for control

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These are the Sky-Watcher options which I am a bit wary of due to their quality control...
HEQ5 Pro + Belt mod - £1,199.00
NEQ6 - £1,199.00
EQ6-R Pro - £1,399.00
AZ-EQ5GT Alt Az - £1,279.00
AZ-EQ6GT - £1,699.00 (out of budget)

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They sound like coffee grinders when slewing and have terrible keypads in comparison, not that I use the keypad much.

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All of them are also super heavy compared to iOptron mounts

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So I do think I want to go iOptron. It just seems to suit me better

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But I have heard their support is a bit worse and there are occasional issues with quality control. Most of which can be fixed by the user though. The engineers even send PDF so users can safely take the mounts apart. Sky-Watcher on the other hand frowns on that a lot

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I think it really is between the GEM28 and CEM26 for me

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Like I said, I like the counter balance on the CEM26 a lot. But it also doesn't have internal cable routing like the GEM28

sacred rampart
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looking at it uniquely from a money and payload point of view the eq6 would be the best choice, but you said that you don't trust skywatcher anymore. Ioptron has that dumb mark up in europe which personally makes me not consider them, you're paying as much as an eq6 but getting almost half the payload

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I like the ioptron mounts too, they're light and seem to be reliable but too much extra money for no reason

wary jungle
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WHAT??

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Three weeks ago, you could still get a gem28 with ipolar + extras for under £1000

wary jungle
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If you definitely want ioptron, I would get a cem mount, I see a lot more of those being used than a gem mount and there may be a reason for it.

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For the Skywatcher side, I would go for the az eq5gt, it has 75% the payload capacity of the eq6r pro but weighs less than half, and it also has the extra versatility of being a dual propose mount, the heq5 in also a proven mount but I would probably go for the former

weary crane
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My intended scope is going to be the SW Quattro 150p

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Weighs about 6kg, probably 7 with my entire setup

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I don't plan on going bigger than that ever

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So I don't care so much about payload capacity. I just want the highest quality of tracking

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Az eq5gt is definitely tempting

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AZ mode is kinda useless to me as I dont do visual

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It weighs 7.7kg and can take 15kg

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£1,279.00

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So basically same price as the CEM26 which can take 12kg and weighs 4.5kg

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Looks like the Az eq5gt/pro has dual encoders?

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@wary jungle seems too good to be true

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It does appear to have dual encoders

topaz zodiac
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Ioptron uses users as there beta testers

topaz zodiac
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They are just enough for position not enough for unguided

weary crane
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Ah so false economy then, that sucks

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So back to CEM26 as my prime candidate. The encoders are the only thing which made my consider Skywatcher

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Unless I can find some proof SW mounts above the EQ35 are significantly better build quality

weary crane
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@topaz zodiac It seems the AZ-EQ5 Pro has a smaller worm gear than both the HEQ5 and NEQ6

weary crane
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0.25 arc-second resolution vs 0.144

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Thats significantly worse

topaz zodiac
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I mean if your guiding it should not be a problem

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You should be guiding regardless

weary crane
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Yeah I guide with a 50mm scope

topaz zodiac
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I'd go for something bigger tbh

weary crane
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I thought 50mm was pretty standard

topaz zodiac
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No no

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Mount wise

weary crane
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Aperture not focal length btw

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ooooh

topaz zodiac
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Ye

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Eq6 or bigger

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A heq5 will pretty much be at it's limit I think

weary crane
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I need to be able to carry this in and out of my house so it can't be too heavy

topaz zodiac
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Welp

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I carry my MyT everywhere

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It's not that heavy

weary crane
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I am only putting about 7kg total payload on

topaz zodiac
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What is that in pounds?

weary crane
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15.4

topaz zodiac
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The heq5 can really good 30 pounds visual ONLY

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Get the biggest mount you can afford

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I would just take it off the tripod every night

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That's what I do

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Not that big of a deal

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And carry everything separately

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Just mark the Balance points

weary crane
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NEQ6 Pro
HEQ5 Pro (with belt mod)
AZ-EQ5GT

Those are the 3 Sky Watcher mounts which are in my budget. But I really don't know if I trust their quality control after the shitty experience I had with the EQ-35

topaz zodiac
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Well your gonna have to tune any of those mounts regardless

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If you want something that just works

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Your gonna need to spend a lot more

weary crane
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Well i'm fine with tuning things as long as there wont be any defects like my EQ-35 had

topaz zodiac
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I mean

weary crane
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Wonky crown gear causing spikes

topaz zodiac
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It's a crapshoot

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Anything synta is a crapshoot

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I'm never gonna buy a crappy mount again for that reason

weary crane
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I am still quite partial to iOptron though since my friend has one and I really like how they look. Build quality looks excellent and apparently quality control issues have been fixed

topaz zodiac
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I would avoid ioptron

weary crane
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GEM28 or CEM26 look amazing

topaz zodiac
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That's not enough payload

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I'd get something with 30-40 pounds

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But rhf

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Tbh

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I had an ioptron

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I'd did not like

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The worm gear clutch system is really dangerous

weary crane
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I think thats one of the things they fixed

topaz zodiac
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Well

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I would not say that completely

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It's not even a clutch

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If your not careful you can sheer the worm teeth off

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Along with the gear itself

weary crane
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CEM26 has a 26lb payload and resolution of 0.17 arc seconds which is good

topaz zodiac
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Ye

weary crane
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People who guide with heavier scopes than me seem to have good results

topaz zodiac
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I'd get the 28 it has more payload

weary crane
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They are identical internally. Its just an arbitrary number

topaz zodiac
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Yea

weary crane
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In-fact since the 26 is center balanced, theoretically it should be able to take more

topaz zodiac
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I just don't like ioptron tbh

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Plus you usually gotta turn pec

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Off

weary crane
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PEC will be done in PHD2

topaz zodiac
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PhD 2 usually has a fit

weary crane
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yea

topaz zodiac
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If the mount ppec is turned on

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So you gotta guide with it off

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Your guiding may suck

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But tbh idk if they fixed that issue

weary crane
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No it definitely will, I read about that issue

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I think it still happens

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Guiding fights with the mount PPEC

topaz zodiac
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Yea

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It's dum lol

weary crane
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But you can do PPEC in PHD2 so it doesn't really matter

topaz zodiac
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I've never done it

weary crane
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Works just as good

topaz zodiac
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I just guided with pec off and it was fine

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Your scope is much shorter focal length wise I think

weary crane
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I will be using a SW Quattro 150p at some point

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Thats like 600mm I think

topaz zodiac
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I'm at 714

weary crane
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Hmm now that I think about it more, I dont need that high of a resolution

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0.25 arc-second is still well below what I image at

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AZ-EQ5 really is very tempting as its only 7.7kg

topaz zodiac
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Ye

weary crane
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Plus it looks badass kitted out

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Not that i'd use it that way

topaz zodiac
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That's the larger one

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That's an azeq6

weary crane
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oh yeah

topaz zodiac
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The eq5 is much smaller

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I would not put a 150 on it

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The 130 maybe

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Im saying this because I think you'd benefit with a little more payload

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Leaves room to grow

weary crane
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I don't have room to grow lol

topaz zodiac
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Well

weary crane
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The 150 is about as big as I can fit

topaz zodiac
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No no I mean

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If you want to go bigger eventually

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Doesn't mean tomorrow

weary crane
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It doesn't look much smaller

topaz zodiac
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It is

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The azeq6 had 44 pounds payload

weary crane
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AZ-EQ6GT - 15.4kg weight

topaz zodiac
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Yea

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That's much Larger imo

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But payload wise it is a lot larger

weary crane
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AZ-EQ5GT can take 15kg

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33lbs

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I'd be under half

topaz zodiac
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I'd be having that

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For ap

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So I'd put like

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15 -18 max

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Your 130 would work fine

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I just wouldn't go much a lot larger than 6 inches

weary crane
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Yeah the SW Quattro 150p should be fine

topaz zodiac
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Just don't expect to carry a 120mm triplet

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Lol

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Even though they weigh less

weary crane
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Yeah, not really into refractors anyway

topaz zodiac
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Refractors are noce

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Noice*

weary crane
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Yeah they are

topaz zodiac
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I like mine

weary crane
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Just a lot more expensive

topaz zodiac
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Not rlly

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Depends on the refractor

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You can get a 80mm

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For under 900

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And it would probably be a triplet

weary crane
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Well one which will match the quality of the equivalent reflector

topaz zodiac
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Well they are for 2 totally different purposes

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One is to gather a lot of light one is for sharpness

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Imo

weary crane
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Reflectors can be razor sharp if set up properly

topaz zodiac
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You don't need to touch refractors on a regular basis

weary crane
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Nor a reflector once its set up

topaz zodiac
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Well

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I beg to differ:p

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If your driving in a car

weary crane
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Maybe every few weeks, just check collimation on a star

topaz zodiac
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Yea

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Refractors are like

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Every few years

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Not even

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Some can't be collimated

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It really depends

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For star clusters I don't see a reason to use a newtonian

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Globular I mean

weary crane
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I don't really mind given how much i'm saving. Quattro 150p is £499.00 and comes with a really high quality 0.85x coma corrector.
Ends up being 510mm FL @ F3.4

topaz zodiac
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Ye they have there place

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I have 0 coma :p

weary crane
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I can't decide on this damn mount

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I have it down to 3 options

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  1. HEQ5 with belt mod
  2. AZ-EQ5GT
  3. CEM26
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I'm disqualifying the NEQ6 for being too heavy

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And HEQ5 voids warranty by belt modding, not that I care that much.

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AZ-EQ5GT has less resolution but should still be an excellent mount and it has encoders which is nice for moving it around manually to avoid slewing.

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CEM26 is the most expensive of the 3 choices but comes with a ipolar scope, weighs less, is more compact and has center counter weight which theoretically improves tracking a lot by putting even less stress on the axis

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But also possibly has worse customer support

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And it has a better hand controller

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And a better tripod

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Disqualifying the AZ-EQ5GT because its got way worse pointing accuracy apparently. And much worse worm wheels

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HEQ5 vs CEM26

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HEQ5 is 3.2kg heavier

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HEQ5 has 135 teeth, CEM26 has 144 (higher reduction) meaning higher theoretical precision

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CEM26 is natively belt driven

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Both can have their backlash adjusted using external screws, no disassembly required

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CEM26 comes with the iPolar camera (but I use SharpCap to do PA normally). Could potentially re-sell it for £200 so there is a plus

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Much better hand controller on the CEM26. SynScan is ancient garbage which is a pain in the ass to use

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CEM26 has a better tripod

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CEM26 is smaller

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CEM26 has 1kg less payload capacity

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Assuming I sell the iPolar, I might actually profit over the price of the HEQ5

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Seems like a no-brainer to me now that I have rationalized it.

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CEM26 is a superior mount in everything other than payload capacity by 1kg

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Next I want to find out if I can find some data directly pertaining to GEM28 vs CEM26 balancing. Does center balance really lead to better tracking

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They use it on their higher end mounts which would indicate so

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But I want to see numbers

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GEM28 is much more convenient to balance and has internal cable routing

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Those are quite appealing but not worth it depending on how center balance affects things

weary crane
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Okay did a lot more research crawling forums

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CEM26 has two major issues

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It uses 2 grub screws to control RA backlash and they come undone over time causing huge tracking spikes.

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iOptron recommends putting loctite on them which to me seems crazy. They shouldn't come loose to begin with

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Thats a major design flaw

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The second flaw is flexure when slewing the mount. It throws off PA

topaz zodiac
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I'd go gem28

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But research carefully

weary crane
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GEM28 doesn't appear to have the same issues. But there are other people reporting they have no issues at all with their CEM26s

topaz zodiac
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Im going against my own advice I know :p

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Yea gem28 or gem 45

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The 45 is substantially bigger

weary crane
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Another user got this with CEM26

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Really quite excellent

topaz zodiac
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Yea

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I still don't like ioptron. I had one for a while

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I just didn't like it

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I had a gem45

weary crane
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For me, both my experiences with Skywatcher products were super bad

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I had 2 mounts from them

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So I dont really have another choice

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I don't have any trust anymore for SW

topaz zodiac
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Unfortunately every mount from a Chinese manufacturer will be a crapshoot

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I know people who have had great luck with the eq6r

weary crane
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No alternatives sadly

topaz zodiac
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But also many have been very unhappy

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I gotta go to bed

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But good luck you'll find something eventually

weary crane
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Okay thanks for the help, your advice gave me a lot to think about

topaz zodiac
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But ye I'm going to bed

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Goodnight

weary crane
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gn

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I guess a benefit to iPolar over the guide scope is I can check polar alignment thoughout the imaging session to make sure it hasn't been thrown off by deflection

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I can re-do polar alignment when i'm on target even

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That by its self is invaluable

weary crane
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I really want a GEM45 but its well over £2k

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The GEM28/CEM26 with the beefier tripod will cost me the same as a EQ6-R PRO

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£1,399.00 for EQ6-R PRO

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£1,529.00 for GEM28

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Insane that its more expensive when its most certainly a worse mount

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But the weight is just a huge problem

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I have an 8kg weight which I use to work out sometimes

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That to me feels really heavy

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And the EQ6-R is 17kg

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So I either go slightly cheaper and get a much worse mount. Or slightly more expensive and get a lighter one...

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£1,898.00 for HEM27

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But all that money goes into an expensive harmonic drive

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DEC is still just the same assembly as the GEM28

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There is literally no mount which fits my needs

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Every single mount has a problem I dont like

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At this price point, how is that even possible...

weary crane
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Screw it. I'll deal with the weight

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I think the EQ6-R Pro is worth it given the price. Its currently on offer

wary jungle
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The az eq5gt is definitely enough payload, I have seem some people that use larger scopes than yours on the normal eq5 which has half the payload of the az

weary crane
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Its got a much worse worm wheel though, less teeth

wary jungle
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If you are fine with ioptron, get the cem26

weary crane
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I don't think iOptron is good value here anymore

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I'd be paying the same price as the EQ6R-Pro for the CEM26

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I'd be getting a much worse mount in that case

wary jungle
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Hmmm, well I'm just saying that all of these mounts will have plenty of payload and all of them will give you room to grow to at least 200mm or a 5 inch frac

hearty hatch
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I owned heq5 i loved it and thensold it because i got a deal for used neq6 (old eq-6r). 5 looks like a childs mount compared to the 6 😅. I’m using quattro 8 with it. I’m happy.

weary crane
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More worried about if i'm going to get a poor quality mount

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HEQ5 i've heard there is a chance to get a bad one still, although not as likely as the cheaper ones

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EQ-6R i've heard no one complain about

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Its so god damn heavy though

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I would 100% buy the iOptron if the price wasn't massively inflated here

weary crane
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I really do hate making these decisions. I would like to go cheaper as to have extra money for my newt

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Lets say for a minute due to the inflated prices I am disqualifying iOptron

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I will list out my choices again

weary crane
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Okay so I immediate discount the two which are gear driven, garbage

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AZ-EQ5GT is clearly the lightest but also has that weirdly low resolution despite having the same tooth count as the HEQ5 Pro

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And there is nothing to explain the higher payload

idle surge
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Got the EQ6R - I am happy with it. If I would go again - I prolly would try to get one of the strain waves mounts (AM5, HEM, HAE). But also prolly would not sell my EQ6R. It's a goat imho. I haven't even tuned a bit, beause being to noob. But it has approx 0.6ish guiding error right out of the box.

weary crane
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I am just worried about the weight of the EQ6R

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Strain wave ones are nice but too expensive for me sadly

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I just don't think i'd enjoy taking 17.3kg back and fourth. Normally I keep my rig in one piece and carry the entire thing out

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But I guess its not too much of a problem to take it apart

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I am just worried if I dont get the EQ6-R Pro i'll end up with another lemon

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Theoretically the AZ-EQ5GT should be amazing

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But its only £120 less

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Honestly, I think its between those two for me

sacred rampart
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Isn't the az-eq5 design quite old? If you're not even planning in using it in alt az just get the eq6r. So far I'be only seen one person unhappy with it

weary crane
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I just think its too heavy

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AZ-EQ5GT is 7.7kg vs EQ6R 17.3kg

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@sacred rampart thats mainly the source of my dilemma

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EQ6R may well be a better mount and no I won't be using the alt-az functionality

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But Skywatcher don't do another mount which satisfies my need for being lighter

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It uses the same worm gear as the HEQ5 Pro which is great obviously, can definitely be very accurate. And has belts out the box so no upgrade needed

weary crane
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Screw it. No chances. I don't have to move it far. EQ6-R. Taking the advice of people who know what they are talking about

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Thanks for the info all. Closing thread

topaz zodiac
sacred rampart
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with the eq6?

topaz zodiac
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Oh I thought he said heq5

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Eq6 you'll be fine for a while

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Payload to weight la very low tho

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Compared to my mount

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Or a ioptron equivalent

sacred rampart
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how much was the payload on yours?

topaz zodiac
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Hard to explain

sacred rampart
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astroshop says 23kg

topaz zodiac
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Software bisque under rates it in purpose

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It could hold 80

sacred rampart
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80lb I hope

topaz zodiac
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But 50 will be guaranteed to work

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No

sacred rampart
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80kg is a lot

topaz zodiac
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How do I say

sacred rampart
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wut? 80 kilograms??

topaz zodiac
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The payload on a sb mount is just a suggestion

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They actually can hold more than what they are rated for

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Up to 50 pounds is only for photographic

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80 for a short photographic tube

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100 for visual

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All pounds

weary crane
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iOptron is not a choice for me due to being massively over priced here

topaz zodiac
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Ah ok

weary crane
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like 2.5k for GEM45

topaz zodiac
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Welp idk then

topaz zodiac
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Bruh

sacred rampart
weary crane
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I'm going to get EQ6-R Pro

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Only 1.4k

topaz zodiac
weary crane
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Everyone says its an amazing mount

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Can take basically anything

topaz zodiac
topaz zodiac
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You'll find a limit

weary crane
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I probably wont. The biggest scope i'll put on it is SW Quattro 150p

topaz zodiac
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You gotta worry about torque

topaz zodiac
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But that's about the max I'd put on it

weary crane
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Yeah. 8 inch newts are too expensive for me

sacred rampart
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they say that the eq6 also is underrated in terms of payload but I'm not too sure

weary crane
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I was originally going to get the SW 150p but then I learned of the Quattro which is a much faster scope

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With the coma corrector it will be 500mm @ F3.4

topaz zodiac
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I wouldn't put anything heavier than 40 on it and that would be visual only

sacred rampart
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about the myt

topaz zodiac
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Yes that sounds right

sacred rampart
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sounds misleading to say 45kg counting the counterweights too

topaz zodiac
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Well

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It could probably handle it

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But I would not image with it

sacred rampart
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at the same time why would someone use an myt for visual

topaz zodiac
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Visual you could get away with it

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I mean

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People do

sacred rampart
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I'm sure of that, but I don't really get it

topaz zodiac
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I don't either

sacred rampart
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well I met a guy a week ago that has a c11 and uses it only for visual

topaz zodiac
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I guess if it's a old Newtonian or something that can't be turned into a dob

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That would make sense

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C11 I can totally see people using it for visual

sacred rampart
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yeah, at least it's not an edge hd version

topaz zodiac
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The edge is decent for visual

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I can notice a difference easily

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But tbh the edge is a lot better in terms of qc I think

sacred rampart
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it's made specifically for imaging so I hope so

topaz zodiac
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It's less of a crapshoot I think