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11-14-2013, 06:57 PM   #1
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K3 Moon versus K5 iis moon

I took a lot of pictures tonight...more with the K3 using the Sigma 500mm but a few with the k5iis...all were shot at 160 shutter and f13...I have been dealing with focus issues with the K3 and the 500 so not sure if what I experienced tonight is because of that...you can see the 2...shot on the tripod and cropped the same ...look at them first ...at the bottom I will tell you which is which






IMGC7110
by pearsaab, on Flickr

IMGC7110 | Flickr - Photo Sharing!




IMGD1112
by pearsaab, on Flickr
IMGD1112 | Flickr - Photo Sharing!



the first is
k5 iis
next k3

11-14-2013, 07:15 PM   #2
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QuoteOriginally posted by pearsaab Quote
I took a lot of pictures tonight...more with the K3 using the Sigma 500mm but a few with the k5iis...all were shot at 160 shutter and f13...I have been dealing with focus issues with the K3 and the 500 so not sure if what I experienced tonight is because of that...you can see the 2...shot on the tripod and cropped the same ...look at them first ...at the bottom I will tell you which is which






IMGC7110
by pearsaab, on Flickr

IMGC7110 | Flickr - Photo Sharing!




IMGD1112
by pearsaab, on Flickr
IMGD1112 | Flickr - Photo Sharing!



the first is
k5 iis
next k3
Not a good way to judge sharpness or focus. Atmospherics play way too much into it.
IMO both images look very good from a "non telescope".
11-14-2013, 07:26 PM   #3
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interesting...so even though taken at about the same time it can change it slightly...ok I feel better
11-14-2013, 07:45 PM   #4
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#2 definitely has that "noisy K-3" look to it! (oh snap, did I write that out loud?)

11-14-2013, 07:49 PM   #5
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OK, well I reckon I can get similar detail with my K-7 and 55-300 at f6.3 and 1/320 or 1/250. Try a faster shutter speed and wider aperture - I think your setup should be able to totally trounce mine! I have found ISO 200 to get the best results with my setup also.
As mentioned - atmosphere makes the most difference. It's best when the moon is as close to overhead as possible and later at night so heat from the ground is less.
11-14-2013, 07:51 PM   #6
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QuoteOriginally posted by pearsaab Quote
interesting...so even though taken at about the same time it can change it slightly...ok I feel better
Absolutely. Not saying that the K3 might not have a problem but I normally shoot several dozen images of the moon and pick the best one from that session.
11-14-2013, 08:44 PM   #7
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Both look pretty good.

I honestly had a hard time telling the difference.
11-14-2013, 09:05 PM   #8
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I had a really hard time telling the difference but maybe after 10-20 comparisons I would say the K3 looks like a bit better resolution, as it should. But the difference would be more evident if you cropped it or printed a poster size print.

11-14-2013, 10:43 PM - 2 Likes   #9
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Why use f13? You do not need much depth of field at 240,000 miles, and your lens is likely sharpest near f8.
11-14-2013, 11:58 PM   #10
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Which Sigma 500mm?
11-15-2013, 01:21 AM   #11
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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...
11-15-2013, 01:42 AM   #12
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Forget about f/13. f/5.6 to f/8 for a large object should be enough. For stars however the larger the aperture the better.
11-15-2013, 03:28 AM   #13
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Are you using the aa filters in these k3 photos ??
11-15-2013, 03:49 AM   #14
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The top image looks noisier, but sharper. I would guess that is the K-3, but there's really very little between them.
With moon shots it is very difficult to make comparisons, because precise focus is so critical.
11-15-2013, 05:09 AM   #15
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With a K5 and a 500mm 1/160second is fast enough, no need to go faster. I suggest base iso if the lens sharpness allows a larger aperture. Shooting at ISO 80-100 makes a huge difference when hunting for details at 100% crop.
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