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11-15-2013, 06:26 AM   #16
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QuoteOriginally posted by skid2964 Quote
Which Sigma 500mm?
4.5 ex

11-15-2013, 06:27 AM   #17
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QuoteOriginally posted by obscura Quote
hi pearsaab, nice images and congrats on the k-3,
give it another try using wider aperture... f/8 - f/9 should be better
remember that difraction kicks in earlier with the k-3... one of the caveats of having 24mp on an aps-c sensor...
thanks i will try again this weekend..i typically use 8 during the day so will set it lower for the moon
11-15-2013, 06:28 AM   #18
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QuoteOriginally posted by aaalegre Quote
Are you using the aa filters in these k3 photos ??
no i am not
11-15-2013, 01:36 PM   #19
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The K-3 shot seems affected by diffraction... that f-ratio again.

11-15-2013, 06:39 PM   #20
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QuoteOriginally posted by bossa Quote
The K-3 shot seems affected by diffraction... that f-ratio again.
no moon tonight cause of clouds but will hopefully get another chance to do at lower f
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