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Old 25-05-2023, 01:00 PM
Leo.G (Leo)
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Leo.G is offline
 
Join Date: Nov 2016
Location: Lithgow, NSW, Australia
Posts: 1,613
Stopping it down defeats the purpose of finding infinity at F2.8 where I want to use the lens. That's the exact issue I have with the 35mm, it will focus nicely on infinity stopped down at night but not at f1.4 where I want to use the lens.
The Rokinon and Samyang (same lens) are notorious for this but when focused they are an amazing lens when you take price into consideration.



I have a couple of Bahtinov masks but they are both too large to keep on the lens. I have read/seen somewhere a wire strainer works on lenses, I have a few of those in different sizes. I'd try tonight but our skies have clouded over and we're apparently expecting snow tonight/tomorrow.
I did find a lot of information which never used to be available for the adjustment.


Strangely enough on the DX Nikon and the FX Canon infinity is just near the mark, close enough to be able to find but playing around outside with distant houses it's showing infinity focus is at 2 metres. That doesn't seem right to me but it won't make a difference until I try on the night sky.
Plus zooming on an image enough to try and see focus at a distance of maybe 100 or so feet the image just pixelates so I'm still confused.
I do know infinity focus on the land and infinity focus on the night sky are two different things.
I'll have to wait till the sky clears again I think.
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