K5 Back Focus issue solved

Started Jun 10, 2012 | Discussions thread
muratscott
Regular MemberPosts: 108
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Re: K5 Back Focus issue solved
In reply to sentro, Jun 12, 2012

Hi Sentro,you've given me a nice idea to correct the focusing issue of my Tamron 17-50mm...The given limits of my Pentax K-5 's -10, +10 limits for focus correction is just not enough to cure my problem,so I have to give your prescription a try...

Thanks for the detailed step by step explanation...But I have a question : When you set the value to +120um under AF Test menu does it make a correction for all of your lenses or did you just mount your Sigma 180mm F3.5 lens on the camera and do the adjustments so that the camera would remember the sigma lens and and just correct the focus shift via the given parameter ( +120um).... Or do we have to able and disable debug mode each time we mount that particularly affected lens so that the focus correction of other lenses wont be disturbed? Because all of my other lenses focus perfectly on my K-5...I hope I could clear out my question in spite of my forgotten English.Thanks....

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