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08-30-2009, 09:14 AM   #1
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K10 Focusing Problem

I have a newly acquired K10 that I'm learning to really appreciate after shooting film all these years. However, I'm discovering problems!
I'm using kit lenses from an old Pentax SF1, that I used for several years. Although these lenses are certainly not the best Pentax lenses built, they've always provided razor sharp images on film. Now however, I'm noticing that everything appears to be focusing a little "short"! Again, these lenses have always worked flawlessly with film.
I'm using Autofocus mode as my eyesight isn't what it used to be and never had any problems with them.
Is this something where I'm gonna' have to send camera and lenses to a service center. If so, I'm wondering what is Pentax gonna' charge to fix this problem?
I hope I've posted this to the correct forum as I don't want to get into trouble with the administrator. Anyhow, as always, I appreciate any forthcoming advice on this critical issue.

08-30-2009, 09:20 AM   #2
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Why not post a photo or two so we can see what you're seeing?
08-30-2009, 10:40 AM   #3
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Many including myself have that problem. Here's a couple of threads to read about a DIY fix. I am hesitant because I'm still not sure if this will fix focus confirmation with MF lenses. I might just send mine in for service. A search using K10 debug will yield more info.
Good luck with it.

https://www.pentaxforums.com/forums/pentax-dslr-discussion/67897-pentax-firmware-hack-site.html
https://www.pentaxforums.com/forums/pentax-dslr-discussion/27040-k10d-firmwar...unleashed.html
08-30-2009, 01:44 PM   #4
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QuoteOriginally posted by hillerby Quote
I have a newly acquired K10 that I'm learning to really appreciate after shooting film all these years. However, I'm discovering problems!
I'm using kit lenses from an old Pentax SF1, that I used for several years. Although these lenses are certainly not the best Pentax lenses built, they've always provided razor sharp images on film. Now however, I'm noticing that everything appears to be focusing a little "short"! Again, these lenses have always worked flawlessly with film.
It's possible your camera has a front-focus issue, then - Google for that term to find thousands of discussions on the topic. There is a very good test chart at focustestchart.com you can use to check this. Of course, it's also possible AF points on the K10D are broader than what you are accustomed to, and the camera is legitimately choosing to focus on near but a little in front of what you are intending. That's why focus test charts are nice for getting to the bottom of this: they provide unambiguous targets.

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