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11-03-2013, 04:38 PM   #1
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M*300 and Q

I haven't posted any pictures although I have had the Q for almost a year. Here is hummingbird at about 50 feet away with the wonderful SMC M*300 lens. OEM adapter. No real post processing that I recall except removal of some CA. CORRECTION: I have now uploaded the correct file which has minimal Dx0 standard processing applied.

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Last edited by Mikesul; 11-03-2013 at 07:31 PM.
11-03-2013, 05:51 PM   #2
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Nice shot! I see a bit of PF going on too.. Was this shot with a hood, and what was the aperture?
11-03-2013, 07:21 PM   #3
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QuoteOriginally posted by kain Quote
Nice shot! I see a bit of PF going on too.. Was this shot with a hood, and what was the aperture?
I am a bit embarrassed. I see now that I mistakenly uploaded the SOOC jpg. I just looked at it in Dx0 and there is no significant PF when processed. Dx0 (trial) cleaned it up nicely. Since it was in the adapter the exif does not record the aperture but it was probably about 5.6. Only the built in hood was used.

Last edited by Mikesul; 11-03-2013 at 07:48 PM.
11-03-2013, 11:32 PM   #4
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Nice work Mike, I see that the twigs on the right side of the pic are properly in focus so the hummingbird may be a bit behind your focus point?

11-04-2013, 07:13 AM   #5
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My experience with this M*300 is that the most ideal aparture should be 8, 11 or 16 !
When I took this picture, I was using an OEM K adapter and leaning against a window to keep holding still:
https://www.pentaxforums.com/forums/136-pentax-q/209474-adapted-lenses-tested...ml#post2273920
11-04-2013, 07:52 PM   #6
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Thanks, everyone for the suggestions. I will try the higher aperture settings next time I use it with the Q. However, many people seem to think the Q i subject to diffraction even at f8. Any thoughts?
11-04-2013, 10:07 PM   #7
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It is subject to diffraction but if the lens sweet spot is there it may not look that bad.
Experiment with different apertures and see how they compare.
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