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04-27-2011, 06:20 PM   #1
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Strange missfires

Has anyone experienced the following:

K 7 camera, Pentax SMC DA* 50-135mm f/2.8. Camera on automatic. Works perfectly indoors, even in subdued light conditions, but sometimes when outdoors, the shutter will not go off in bright light. You check again, all readings are within normal parameters in the viewfinder, meaning it should go off normally, but nothing happens. Strangely only with that lens, as it never happens with my other two SMC DA* lenses.
Can you give me a lead?

04-27-2011, 06:55 PM   #2
hcc
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What do you mean "the shutter will not go off in bright light"?

Do you mean that the lens cannot focus to infinity and in AF/AF.S you cannot take the shot?
04-27-2011, 07:22 PM   #3
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That means the lens is conscious. It takes the shot only when it wants to.
04-28-2011, 10:22 AM   #4
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Clean the contacts on the lens. Try alcohol on a cotton bud (Q-Tip).

05-01-2011, 06:55 PM   #5
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QuoteOriginally posted by gp1806 Quote
Clean the contacts on the lens. Try alcohol on a cotton bud (Q-Tip).
Thank you for a good suggestion.
Wish all those who take part in a thread would be as helpful.
05-02-2011, 04:19 AM   #6
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QuoteOriginally posted by vikingo Quote
Thank you for a good suggestion.
Wish all those who take part in a thread would be as helpful.
Did the cleaning work?
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