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01-09-2011, 05:39 AM   #1
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K5 AF adjustment

Hi all,

One simple question:

Is it bad to have a -8 (18-55mm WR kit) and a +10 (50-200mm WR) lenses?

Do I really need to send them back to recalibrate or just leave them alone and keep shooting?



Last edited by kamayok3; 01-09-2011 at 05:47 AM.
01-09-2011, 06:16 AM   #2
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dont think id want any lens that need +10..thats right up one end

have you tested if for lens shift?..when the focal range changes, does the focal point ?
01-09-2011, 07:44 AM   #3
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Will send them back for recalibrate. Sad!
01-09-2011, 08:50 AM   #4
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QuoteOriginally posted by kamayok3 Quote
Hi all,

Is it bad to have a -8 (18-55mm WR kit) and a +10 (50-200mm WR) lenses?
Are you absolutely, totally, completely and without doubt sure you have calibrated the body to fit the lens correctly? Even the most expensive zooms are known to be very difficult for a body based AF adjustment that's consistent over their entire zoom range. Kit zooms may be even more of a challenge.

Also, may I ask if you use the handy 'quick shift' feature offered by these lenses to help you fine tune your focus after AF? If not, page 75 of the K-5 Manual provides some insight into which conditions AF may need some assistance. There's nothing wrong for you to add a brief 'check' task via MF to your image capture work flow. I find, sometimes AF nails the subject, sometimes it needs a little MF help to get things right. I don't fault the lens, if something in the scene requires me to tweak things manually.

Just askin'.... Cheers, M

01-09-2011, 01:39 PM   #5
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I think -8 and +10 are absolutely fine(if you are sure that +10 is good enough). The camera offers only very MICRO focus adjustment, which means even a +10 cannot suggest anything is wrong. Send the camera to warranty is fine now, but if you upgrade to other lenses in the future, it may be a problem again.

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