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 Replies: 102 / Views: 14,802 |
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Pillar of the Community
  United States
4038 Posts |
Here is a collage I published a while back showing differences between normal operation and Live View operation on the D7000 vs T2i. On the D7000 (and all other modern Nikons until the D810), Live View eliminates mirror slap but not shutter shake. On the T2i (and all other modern Canons) Live View also initiates EFSC and not only eliminates mirror slap but also shutter shake. The differences are extremely clear IMO. The images are a detail of the "8" in date of a 1883 Morgan dollar.  |
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Moderator
United States
23522 Posts |
....and that, in a nutshell, is why you hear us constantly harp on the subject of EFSC. It (the lack thereof) is one fundamental ill which has to be cured before you can begin to explore the actual limits of coin macro photography or even the lens you might already own.
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Bedrock of the Community
United States
10045 Posts |
Quote:
....and that, in a nutshell, is why you hear us constantly harp on the subject of EFSC. I wouldn't have believed the effect of EFSC on improved sharpness until I tested it myself--thanks for educating me on it.  I think my results may be even more dramatic than mpsrpms--nice shot. These were shot at ~1:1 on my Nikkor 105mm micro w/ AF microadjustment dialed in. Bottom row of pics is with EFSC enabled. This is 100% crop if anyone wants a look.   Edited by DVCollector
08/17/2014 11:23 pm
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Pillar of the Community
United States
4038 Posts |
I can't see the image.
I generally don't use AF as the critical focus points are rarely the ones chosen by the AF algorithm. If you're at f14 it may not matter much though since DOF is double what it would be at f7.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Bedrock of the Community
United States
10045 Posts |
I think I updated it--fixed now. That's about as far as I go with pixel-peeping.  I'm glad I did it--I learned something about EFSC--thanks again for the conversation. |
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Pillar of the Community
United States
4038 Posts |
Comparing the f7 vs f20 images there is little difference, and indeed the f11 or possibly f16 look the same or slightly better. This means the lens aberrations of the 105VR pretty much degrade the image at f7 as much as diffraction does at f20. This is an interesting quality of the 105VR that I had not noticed before, and must have been a design goal, ie to make the image quality pretty much independent of aperture.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Bedrock of the Community
United States
10045 Posts |
It helps to compare these in a program like Photoshop, where I can copy/paste a smaller swatch from one shot and compare directly w/o going nuts from scrolling The old adage that you should stop down a macro lens as far as possible just doesn't appear true--not for the two I tested--focus-stacking is a much better solution there. And thanks to the EFSC on the D810, I'm going to get even more obsessive about picture quality  At least I'll have that detail if I need it. Edited by DVCollector
08/18/2014 01:41 am
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Bedrock of the Community
United States
10045 Posts |
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Pillar of the Community
United States
4038 Posts |
Will continue to wait patiently...
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Pillar of the Community
2087 Posts |
A question( I don't have any idea of what the answer is). How much picture degradation is caused by the low bypass filter (also known as anti-aliasing)? Background to question My camera doesn't have a EFCS or a Low by pass filter. I did quick comparison with my other camera that has a smaller sensor EFCS and a low by pass filter. With the same lighting my camera with out the bypass filter produces better shots of coins
The Nikon D810 doesn't have a low by pass filter. It has the same sensor( sony made) as my camera.
Edited by austrokiwi
10/05/2014 07:28 am
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Pillar of the Community
United States
4038 Posts |
I had the AA filter removed from my T2i and saw some improvement in pixel - level sharpness, though less than hoped/expected. It may be that the raw processing is partially compensating. I certainly am a proponent of AA-less systems but to me the difference was less important than EFSC...
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Bedrock of the Community
United States
10045 Posts |
Most of the tests I've read about compare the D810 to the D800e, which has an OLPF. A lot of "tests" I've seen are essentially opinions from pixel-peeping--as are my results. A few sites are pretty careful at focusing on measurable results, like here.I'm waiting for DXO Labs to test Nikon's lenses on the D810, and see how that compares to their D800/E results. Edited by DVCollector
10/05/2014 2:00 pm
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Replies: 102 / Views: 14,802 |
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Posted 08/17/2014 7:04 pm
