C&C for my first attempt at DSO astrophotography with 85 mm lens

Started 5 months ago | Questions
ProximaVega New Member • Posts: 3
C&C for my first attempt at DSO astrophotography with 85 mm lens
4

Hello!

2 days ago I went out of the city I live in and attempted to capture a part of the Milky Way. The one that houses the pelican nebula and, if got it right, also the NA nebula.

50x4 sec exposures at ISO3200, 85mm f/1.8 SONY lens on a SONY a7 III. Just a tripod, untracked. 30 flat, 30 dark and 10 bias frames too.

It was a Bortle Class 2 sky (~21.9, I suppose).

Is my photo any good? What should be taken into consideration next time?
Are there any other target I could capture with 85mm lens (FF) and how do I find them (stellarium?) ?

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Sony a7 Sony a7 III
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swimswithtrout Veteran Member • Posts: 4,145
Re: C&C for my first attempt at DSO astrophotography with 85 mm lens

Excellent work for a static tripod !!! Yes, you got the NA and Pelican, as well as the Sadr Complex.

hha Contributing Member • Posts: 727
Re: C&C for my first attempt at DSO astrophotography with 85 mm lens

Excellent for a first attempt, with darks, lights and flats in 50 x 4 = 200 seconds. A Bortle 2 sky helps. You used a Sony 85mm f/1.8 lens. In 4 seconds you will get 60" of sky rotation. Barely visible. The image quality in the corners is too amazing for f/1.8. Was the image taken at f/1.8 or did you stop down?

Thanks for sharing.

hha

 hha's gear list:hha's gear list
Olympus TG-630 iHS Nikon D3200 Nikon D3300 Nikon D7200 Nikon Z6 +4 more
OP ProximaVega New Member • Posts: 3
Re: C&C for my first attempt at DSO astrophotography with 85 mm lens

Thank you! I’ll be working on it to get even better results.

OP ProximaVega New Member • Posts: 3
Re: C&C for my first attempt at DSO astrophotography with 85 mm lens

I actually did use f/1.8, but it’s a crop. Had to get rid of trees and power lines. Tried at f/2.0 and got similar results, just a tiny bit darker.  Perhaps 2.8 would make it sharper, but I had to choose between the widest aperture and higher ISO. Didn’t want to introduce too much noise.

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