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Canon PHF 35mm F1.2 modified for infinity focus
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PostPosted: Mon Nov 11, 2013 4:04 pm    Post subject: Canon PHF 35mm F1.2 modified for infinity focus Reply with quote
I know c-mount isn't as popular anymore, but it's still fun for me to play around with these.
I've had this lens for a while, but decided to "fix" it and make it focus properly.





I removed about 8 mm from the rear collar. the helicoid was damaged and didn't want to screw back on, so I ground down most of that too. Center is quite nice as expected. Edges lose detail. Lovely swirly bokeh for out of focus lights. I don't recommend this unless you can accept a loss - if it sticks on the helicoid it's a PITA.

Went from focusing up to half a meter, to half a meter near focus - good enough. Here's a couple samples Smile





PostPosted: Mon Nov 11, 2013 4:06 pm    Post subject: Reply with quote
Seems to have worked nicely. Congrats!


PostPosted: Mon Nov 11, 2013 5:40 pm    Post subject: Reply with quote
I think those are lovely too!!


PostPosted: Mon Nov 11, 2013 7:15 pm    Post subject: Reply with quote
Thanks guys Wink
50mm f1.3 next. Thinking I'll be breaking out the grinder here too. Half the fun is in modifying equipment Very Happy
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