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09-10-2008, 04:27 PM   #1
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Pentax 16-50 mm da* problem

Plz help! After installation this lenses into my K20D i can't normally access menus. After pressing MENU button, menu shows in backscreen and dissapears in less than 1 sec - so i can access any settings... The same with Fn button.

So, I can create shots in MF mode only. After AF.C or AF.S changing i can create the shot.

09-10-2008, 06:01 PM   #2
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Try cleaning the contacts on both the lens and the body. Even if they look clean.

If that doesn't work see if you can try another lens at a local shop.
Since that lens doesn't have the best track record it may be flawed, although I haven't heard of that one happening
09-11-2008, 05:28 AM   #3
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During last 9 days i used Helios lenses without AF, and it works with no troubles...
09-11-2008, 06:29 AM   #4
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the helios has does not transmit any information to the body and might have dirtied up the contacts when mounted

09-11-2008, 07:52 AM   #5
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QuoteOriginally posted by k100d Quote
the helios has does not transmit any information to the body and might have dirtied up the contacts when mounted
So i must clear contacts with alcohol?
09-11-2008, 08:06 AM   #6
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Electronic contact cleaner with a clean microfibre cloth is best and don't use too much.
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