https://www.dpreview.com/articles/1717621214/astrophotography-with-the-sigma-14mm-f1-8-art-lens
Astro review of Sigma 14mm ART from dpreview.
Astro review of Sigma 14mm ART from dpreview.
Upvote
0
ahsanford said:natek said:I just grabbed myself a copy. Any tests you guys would like to see? Hoping for a clear night to get at least some test shots. Anything else?
Regards,
Nate
Um, let's see:
- Coma
- Have another look at coma
- Vignetting
- Check coma again
- A
P.S. Don't listen to me too seriously. I don't shoot astro -- I'm just parrot-ing why every superfast ultrawide has failed to meet astro shooters' (very very high) expectations the last few years: coma usually underwhelms.
LonelyBoy said:ahsanford said:natek said:I just grabbed myself a copy. Any tests you guys would like to see? Hoping for a clear night to get at least some test shots. Anything else?
Regards,
Nate
Um, let's see:
- Coma
- Have another look at coma
- Vignetting
- Check coma again
- A
P.S. Don't listen to me too seriously. I don't shoot astro -- I'm just parrot-ing why every superfast ultrawide has failed to meet astro shooters' (very very high) expectations the last few years: coma usually underwhelms.
It does make me wonder - how hard is it to control coma? Are the lens designers unaware of the thirst for coma improvements, or as with other things is it a tiny-but-vocal minority? Is it really expensive to control coma? Is it even possible to avoid it in fast UWA designs (has anyone done it yet)?
The sequence I've seen, over the years, of hope and disappointment with every single announcement and review of a new fast UWA has made those questions simmer in me for a while. They're serious questions, by the way, if anyone knows the answers - I really just don't, but the repetition of the cycle is fascinating.