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Forum: Pentax DSLR Discussion
05-21-2009, 01:57 PM
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I only have the A 50/1.7 and the FA 35/2 and both expose accurately and consistently at all apertures. Ditto for my Tamrons when the PK/A adapter is used. The only exposure issue I have noticed with my A-contact lenses is 1/2 stop difference between exposure at infinity vs. close focus with the A 50/1.7. Go figure...
Out of curiosity, what do you think is happening with your FA 50/1.4? Excess light scatter biasing the meter?
Steve
(Almost forgot about the Sigma macro...it is fine too...)
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Forum: Pentax DSLR Discussion
05-21-2009, 11:27 AM
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You are correct.
As for Pentax letting this slip by...The legacy glass exposure issue was known at the time the user's manual was printed. There is a small disclaimer for AV and green-button exposure.
Steve
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