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05-24-2013, 06:03 PM   #1
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Back Focus on 50 1.4

I just bought a used Pentax SMCP-FA 50mm F/1.4 from an online store and got it delivered Wednesday.

Shooting some images tonight I noticed the focus was off.

I did a ruler test and it is back focusing.

Is there anything I can do to fix it?

05-24-2013, 06:11 PM   #2
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It is not the end of the world. It depends on what camera you have how hard it is to fix.

A good place to start is here:
https://www.pentaxforums.com/forums/pentax-dslr-camera-articles/61385-autofoc...ent-hints.html
05-24-2013, 06:12 PM   #3
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I have K5iis
05-24-2013, 06:19 PM   #4
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QuoteOriginally posted by alisonkim Quote
I have K5iis
Very easy. You can adjust the AF by fine tuning it up to -10 or +10 (21 increments with 0 in the center) via the menu interface of the camera.

Menu
C4 Page
#26
Turn "On"
Select Apply One
Adjust and recheck lens until satisfactory.


05-24-2013, 06:20 PM   #5
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I'm a dummy!

I was shooting with film lenses up until I just got this lens.

I see now that my focus tuning I had set to ALL

Now that I set it back to zero the lens is perfect!

User error!!! :/

Thank you for the link! That is where it clicked in my pea brain!
05-24-2013, 06:25 PM   #6
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QuoteOriginally posted by alisonkim Quote
I'm a dummy!

I was shooting with film lenses up until I just got this lens.

I see now that my focus tuning I had set to ALL

Now that I set it back to zero the lens is perfect!

User error!!! :/

Thank you for the link! That is where it clicked in my pea brain!
We've all been there. Glad that it works at "0". One thing I love about my K-5IIs is that so far I haven't had to adjust any lenses
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