Whirpool Galaxy

[carmine tapir]

After trying to shoot the comet which I failed, I moved on the Orion then the Whirpool Galaxy. Not much of lights at all, only 15 mins at 200mm. Wonder what yall could get out of it 🙂

@obtuse forum maybe you could give it a try if youve got the time O_O

[obtuse forum]

Sure give me like 5m and i can do it (:

[obtuse forum]

U got a .tif stack?

[carmine tapir]

stacked it in dss

idk why it has some kind of halos

[obtuse forum]

Ahh umm i hate to sayyy... U may wanna restack it and save it as a .tif file as .JPEG are compressed which means all the fine details are gone and cant really do much with them

[carmine tapir]

i cant send it as a tif

i need nitro

i have the tif file as well just converted it

[obtuse forum]

U gotta use like Google drive or we transfer

[carmine tapir]

okay

sec

[obtuse forum]

np (:

[carmine tapir]

https://we.tl/t-4AlgFv0Iuh

[carmine tapir]

now?

[obtuse forum]

Yep ill begin processing now

@carmine tapir Didnt take too long tbf lol defo one of the widest field M51 shots ive ever seen/processed but you still had a little detail in there which is quite impressive! Well done on this one its not a perfectly easy target to go for especially this wide

[carmine tapir]

Love it! When I took my first 2 min exposure and I saw a glimpse of it for the first time I was very happy. Didnt photograph a glaxy before. My biggest focal length is 200mm unfortunately 😦

But thank you so much for your help!!

[obtuse forum]

Any time! I shall recommend shooting Andromeda as thats huge! i think itll look great ngl!

[carmine tapir]

Its not that high unfortunately and the house and trees block the view, trying the comet next.

[obtuse forum]

Ahh that sucks i cant see orion for long tbh it kinda sucks

[carmine tapir]

Orion is my favorite constellation, now thats itsnot high enough as it was a few weeks ago I need to go elsewhere to photograph it

[obtuse forum]

Its the same height for me but theres trees either side so i get like 40m to image and im F10 and 11 so pulling any data with that is really difficult

[carmine tapir]

What focal length you shooting with?

[obtuse forum]

2032 and 900

[carmine tapir]

Yeah thats much more than mine

[obtuse forum]

Yeah 😅 i want a 130PDS which is 500mm with the coma corrector

But i want a dedicated astro cam first although its very expensive 😅

[carmine tapir]

I seen some used for much less, but without the corrector though

[obtuse forum]

trust me coma with a PDS is quite bad id recommend getting a used on of those cos they have quite severe coma tbh

[carmine tapir]

I feel like 500 is pretty reasonable for both

[obtuse forum]

well without the corrector its 550mm

[carmine tapir]

50mm is not a big differnce in my opinion at such a high magnification

[obtuse forum]

No but coma

ill show u what i mean

[obtuse forum]

Look at the stars in the middle of the image and the edges

and this was cropped so it was alot more severe

[carmine tapir]

I see, its like stretched

[obtuse forum]

Yeah elongated which is why when i do go for one id get a coma corrector which brings the focal length down a touch but no more stretchy stars

[carmine tapir]

Whats causing the coma anyway?

[obtuse forum]

The mirrors being bent to magnify it and the corrector does the same sorta bend but backwards to correct it

well

thats what ive always assumed

[carmine tapir]

Got it

I dont have a telscope to use for astrophotography so I dont really have these problems lol

[obtuse forum]

Sry i missed this earlier lol but lenses can have it too very few dont and yours seems to be one that doesnt (: