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Paul_ron
Tinkerer
Username: Paul_ron

Post Number: 302
Registered: 07-2006

Rating: N/A
Votes: 0

Posted on Wednesday, July 25, 2012 - 06:52 am:   

The focus after infinity can be either the viewing lens is off or the screen is not focused properly. Do yuo wear reading glasses?... diopter is another cause.

Take the lens off n look through while pointing the camera at a blank wall. Are the screen etchings or grid in focus? If not you need a diopter to adjust for your eyes.

Check to see if the viewing n taking lens agree by checking it against a well lit target while on a tripod.

Set the focus on the screen then check the film plane focus using a ground glass over the film gate. I like to use a loupe to inspect the results so I can be sure I am razor sharp in focus.

If the taking lens doesn't agree, the adjustment will be at the screen. By raising or lowering it to comepnsate for the difference. If there is no adjustment on your model then the viewing lens wil have to be adjusted by unscrewing it or screwing it in to make up the difference.

I check my focus adjustments using a collimeter but there are ways you can make one very easily. Look it up on Google as a DIY collimeter.



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