Possibly last WIP with DSLR: Pleiades | Astrobiscuit | Page 1

lyric forum Nov 15, 2023, 8:46 PM

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Welp i shot this last night for aslong as possible from my garden (4h 15m) and will get another 4 next clear night, whenever that may be XD this is my favourite nebula image ive shot so far! really love the details and colours, stars are bad but i cant accurately collimate rn, more a skill issue really kekw

Scope: SkyWatcher Quattro 150p
Mount: HEQ 5 pro guided
Guiding: GSO 50mm F4 guide scope
Guide cam: ASI 120MM mini
Imaging cam: Nikon D3500 full spectrum modded, UV/IR cut filter
ISO 400
Exposure: 54x240s (3h 36m~)

frail sand Nov 15, 2023, 10:33 PM

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Very nice detail

meager spruce Nov 15, 2023, 10:35 PM

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nice image

urban cedar Nov 16, 2023, 7:41 AM

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Wow

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Seems like it is getting a 10/10

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The blue is really nice

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And deep

dense lark Nov 16, 2023, 9:14 AM

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So much pretty blue pepeHappy justright

eternal timber Nov 20, 2023, 10:17 PM

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Question. This is such a bright target. The OP did 54 240s exposures.. I have an asi585mc, should I saturate the pixels and expose long or take many short, say 15 or 30 second exposures?

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I have the same scope with its .85x reducer.

lyric forum Nov 20, 2023, 10:24 PM

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eternal timber Question. This is such a bright target. The OP did 54 240s exposures.. I have an...

It is a bright target, but almost in all cases the longer exposure length, the more SNR and brighter image you get, so id do as long as you can, i would do 1200s but light pollution and guiding stops me

eternal timber Nov 20, 2023, 10:31 PM

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I didnt think I had shot M45 with my 585, but I do. This was with my AT80EDT at .8x (385mm, f4.8, 300seconds) this is my histogram.

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at f3.45 I'd be putting 1.94x on the sensor.. but I still need to calculate out the increase in FL to subtrack that out..

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the stars blow up

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my 533mm and the AT80EDT at 30 seconds

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I want to shoot M45 next good night, I just want to make sure I'm taking the right approach

lyric forum Nov 20, 2023, 10:36 PM

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eternal timber the stars blow up

Well uhh, mine didnt blow up this much, but making it clipped that far will make even small stars look bloated, and in the pleiades i think it looks very unnatural to have the big stars small 😅 if it was me id just shoot as long exposures as possible, and if you really want those small stars, shoot like 20-30 minutes with 1m or 30 subs to get a star image, if you dont have a UV/IR cut filter thatd explain the bloating alot more because the 585s sensitivity is crazy in the NIR

eternal timber Nov 20, 2023, 10:36 PM

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aww, your probly right about not having the uv/ir filter! I do now!

lyric forum Nov 20, 2023, 10:37 PM

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eternal timber

Yeah id definitely say thats fine, the sub length here could be pushed so much further before any "significant" bloating would occur

lyric forum Nov 20, 2023, 10:38 PM

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eternal timber aww, your probly right about not having the uv/ir filter! I do now!

Haha it happens

eternal timber Nov 20, 2023, 10:40 PM

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the 533mm L channel is through a uv/ir filter and I'm building my SWQ and the 585mc with a 5 filter wheel. UV/IR, DuoBand Ha Oiii and IR pass 650.

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I'm really looking forward to shooting with that scope again. my CEM26 couldnt cope with it, and it was very frustrating to not be able to poin the camera down to balance the scope/mount.

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I got an AM5 and now I'm so very happy 😄

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it guides sub 1.0 in wind! 😄

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Very nice photo BTW! 🙂 inspirational

lyric forum Nov 20, 2023, 10:49 PM

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eternal timber I'm really looking forward to shooting with that scope again. my CEM26 couldnt c...

Oh why couldnt you balance it? surely you couldve rotated the tube in the rings to balance it? but atleast you got a AM5 now! those things are solid, easily capable of 0.5"

#Possibly last WIP with DSLR: Pleiades