Jon Boguslaw Posted May 9, 2007 Share Posted May 9, 2007 Hi, I looked for a thread that adressed this but couldn't find one. I recently got a Bolex with a 25mm Lytar lens. It doesn't seem to have a focusing ring that I'm used to having with 35mm SLRs. Is the only way for me to get closer objects in focus to make the apperture smaller to increase the depth of field? Link to comment Share on other sites More sharing options...
Clive Tobin Posted May 10, 2007 Share Posted May 10, 2007 ...I recently got a Bolex with a 25mm Lytar lens. It doesn't seem to have a focusing ring... Is it possible that this is a video lens? I have run into some that had a focus ring, but it was not calibrated in distance. Other video lenses have vague "Near - Far" settings. These are intended for video surveillance use where the distance is set once using a monitor, and never changed. If you have the rackover focus finder on top of the camera, look through the lens and see if the focus changes when you move any unmarked ring that might be present. This is my best guess. Link to comment Share on other sites More sharing options...
Jon Boguslaw Posted May 10, 2007 Author Share Posted May 10, 2007 Thanks a lot for the suggestion hmmm, it really doesn't look like a video lens to me. There are a lot of markings regarding distances and such that list the apperture setting that would contain them. I can unscrew the front, but that doesn't seem to help. I can't find any way to make changes that are visible in the critical focuser. The lens says Lytar Som Berthiot F=25 1:1.8 Link to comment Share on other sites More sharing options...
Jon Boguslaw Posted May 10, 2007 Author Share Posted May 10, 2007 Oh, nevermind. The focusing was just jammed very very tight. Thanks for your help! Link to comment Share on other sites More sharing options...
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