Golem Posted June 21, 2016 Share Posted June 21, 2016 Sigma sold their 90/2.8 as a macro lens and I recently got an LAEA3 so it's no longer sitting around unused. I use mainly use Nikkor macro lenses so the Sigma is simply my general purpose 90 cuz it has auto iris via the adapter but the Nikkors do not. But as it happens I'd never tried the 90 at infinity. First thing I discover is that it has no solid stop at infinity focus. Next thing is that it can produce some minor ghosting of a light source within the frame. Third thing is that Sony IBIS does a pretty decent job, as I can see stars in this sky shot at 1/40 using camera HDR6, so part of the HDR bracket is around 1/8 sec. I did compare additional frames to confirm that the stars are indeed stars, and not just some hot pixels. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Here's a frame made in more normal conditions. ` ` Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Here's a frame made in more normal conditions. ` ` ' data-webShareUrl='https://www.sonyalphaforum.com/topic/4926-9028-a-mount-sigma/?do=findComment&comment=24719'>More sharing options...
Advertisement Posted June 21, 2016 Posted June 21, 2016 Hi Golem, Take a look here 90/2.8 A-Mount Sigma. I'm sure you'll find what you were looking for!
Golem Posted June 22, 2016 Author Share Posted June 22, 2016 ` 90/2.8 Sigma Macro on LAEA3 Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! ` Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ` ' data-webShareUrl='https://www.sonyalphaforum.com/topic/4926-9028-a-mount-sigma/?do=findComment&comment=24746'>More sharing options...
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