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01-13-2009, 06:27 AM   #1
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Pentax 100mm A Macro

Hey crowd...

I am having issues with an A 100mm macro.

I overexposed in A mode, as if it didn't work in A mode.

Results are perfect in M mode...
I thought it was the K20D, then it worked on K10, now it is doing it again on K10...

How could this be fixed?


Thanks

01-13-2009, 06:35 AM   #2
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QuoteOriginally posted by Substitute Quote
Hey crowd...

I am having issues with an A 100mm macro.

I overexposed in A mode, as if it didn't work in A mode.

Results are perfect in M mode...
I thought it was the K20D, then it worked on K10, now it is doing it again on K10...

How could this be fixed?


Thanks

Sounds like your aperture blades are sticking. Check that by manually opening/closing them a bunch of times off camera - if that's it, you can take it apart yourself or have Eric do it for about $30 plus shipping charges.


.
01-13-2009, 06:38 AM   #3
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Original Poster
Eric.....?this Eric http://pentaxs.com/index.html ?
Thing is it works when set to M that's what is weird....
Plus I just noticed the hexagon made by the blades is not perfect. Is it normal? Never noticed this before...
Underexposing by 2 or 2.5 Il does the trick in A mode...
Thanks for your help!

Last edited by Substitute; 01-13-2009 at 08:05 AM.
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