Peter Figen Offline Image Upload: On
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p.1 #9 · Official Rokkor 58mm 1.2 image thread. | |
I've just done my first tests with a rubber ringed 58 1.2 using Jim Buchanon's excellently machined adapter. I did have to file the rear retaining ring down to clear the mirror on my 1DsMKIII but the infinity focus was spot on. The biggest trick was getting the ball bearing for the aperure detent back in. Well, not really. The problem was getting the aperture ring over the bearing and properly seated. In the end I had to unscrew the small stainless tab on the aperture ring that engages the actual aperture lever, slip the ring on and then re-attach the tab, after first scribing exactly where it had been positioned.
I'm not posting any images yet, but in comparing to my Canon 50mm 1.4, the Rokkor seems very similar wide open with a good amount of ghosting flare. The Rokkor might be slightly sharper but the haze is too much in my opinion.
Stopping down one stop to f/2, the Rokkor improves so dramatically that it's almost like a different lens altogether, becoming both much sharper and more contrasty than the Canon. Those improvement were seen down to f/5.6, where I stopped for the time being.
Since I don't have another lens for comparison, I really don't know if the one I have is typical or not. Wide open, it's certainly not even close the my 85L Canon, which is both sharp and contrasty wide open. And as soon as it's stopped down even one stop, the Rokkor seems to be among the best I've ever seen.
I'll be shooting some low light with it later tonight. We'll see how it does in real world conditions.
Peter
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