DOF for 90 Summicron
I love to use my OLD 90'cron. I think it was one of the first 2000 or so made in M mount. It is old (like I said), BIG, and Heavy. It has some chunks inside and even a fingerprint smudge cemented between elements. BUT...but despite all of these drawbacks it is a super lens when you get it focused***
And I DO mean 'when'. Stopped down is easy, and using the 1.25x mag. eyepiece helps alot... but wide open it has a TINY DOF. Cool effects... but only if you have what you were hoping for inside of that sharp area. It is an extreme twister of a lens: very long throw from close to infinity. That is part of the problem, I guess.
Does someone know of an online source/ chart that helps calculate DOF at various f stops/ distance for 90 mm focal length??? Maybe one of you lens-heads knows offhand what the dof is at f2 HAHA!
I know some folks like the "thin" 90/2.8 better... does it focus with less of a twist??
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