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Forum: Maintenance and Repair Articles 11-07-2014, 07:54 PM  
How to fix infinity focus on K 200mm f2.5
Posted By Pentaxaholic
Replies: 16
Views: 18,224
Thanks for your thoughts on this. All I know is it DID work for the Olympus lens I tried it on. It just was not tack sharp on my camera at infinity. The camera had a setting to reset lens to infinity when you power on. It still didn't work, so I followed a thread and tried it and it worked.
I knew the lens was capable of far sharper images at infinity, because I used it on my earlier Oly dslrs.
Forum: Maintenance and Repair Articles 11-03-2014, 08:54 AM  
How to fix infinity focus on K 200mm f2.5
Posted By Pentaxaholic
Replies: 16
Views: 18,224
I reset an AF lens to infinity doing the following: (Please read disclaimer below- this may not work for you, I tried it as a last resort and it did work for me)

It is worth hanging on to an outdated body of your brand just to use for lens adjustments, so you don't have to worry about damaging your camera)
Set your (outdated dslr) camera for a LONG EXPOSURE
Focus on Infinity (even though lens won't focus to infinity)
Release the shutter
Removed lens before exposure completed.
Shut off camera
Replace lens.

The camera body and lens I tried it with was an Olympus. I found this 'fix' method 'googling' the problem.

Legal disclaimer: the technique described here worked for me, it doesn't necessarily mean it will work for you, too. I DO NOT ASSUME RESPONSIBILITY IF YOU DO SOMETHING BAD TO YOUR LENS AS A RESULT OF THE TECHNIQUE THAT I HAVE PRESENTED HERE. IF YOU DECIDE TO DISASSEMBLE YOUR LENS, YOU DO THAT AT YOUR OWN RISK.
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