jonrobertp
Forum Pro
Interesting..sure. But what will the D7100 , D400, and 7DII be in a yr from now ? Think I'm gonna wait a bit this time...see what the alternatives are gonna be.
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Diffraction isn't a sensor issue, and it doesn't suddenly 'start affecting' - at some f-number diffraction takes over from aberration as the main limitation on resolution and the resolution falls from that point, usually between f/4 and f/8 depending on the lens. The pixel count doesn't affect where that point is at all. Nor does the resolution suddenly drop at some f-number according to pixel count and a higher pixel count camera will deliver more resolution at every f-number. So, having fewer pixels does not help with diffraction, all it does is reduce the resolution to the resolution you might have had a some smaller aperture with a lower pixel count camera.According to Thom Hogan with the D800 diffraction starts affecting the image at F8 and above. Maybe he is wrong, but from reading that it would seem with a 24mp sensor, it wouldn't impact unitil say F11 or higher, which is where I'm usually at with my landscape shooting for maximum depth of field.A 24MP D600 will have no advantage over the D800 with respect to diffraction, actually in reality a slight disadvantage.If the specs are true, I would rather have this than the D800. Less diffraction issues.
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Bob
sniptyler_dx wrote:
Standards of sensor technology nikon/sony is using and was applied in d7000 onwards almost guarantee it.as i shoot a lot of landscapes i am interested in the DR results. hope it'll perform comparable to the D800 in that area.
The best case scenario is that my backup camera shares batteries and cards with my primary camera. Hell, right now I don't even know that my primary camera will be a Nikon and share lenses.
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Jim
+1 Lots of people have been complaining that higher megapixels will cause more noise, cause more diffraction, cause more motion blur bla bla bla.Diffraction isn't a sensor issue, and it doesn't suddenly 'start affecting' - at some f-number diffraction takes over from aberration as the main limitation on resolution and the resolution falls from that point, usually between f/4 and f/8 depending on the lens. The pixel count doesn't affect where that point is at all. Nor does the resolution suddenly drop at some f-number according to pixel count and a higher pixel count camera will deliver more resolution at every f-number. So, having fewer pixels does not help with diffraction, all it does is reduce the resolution to the resolution you might have had a some smaller aperture with a lower pixel count camera.According to Thom Hogan with the D800 diffraction starts affecting the image at F8 and above. Maybe he is wrong, but from reading that it would seem with a 24mp sensor, it wouldn't impact unitil say F11 or higher, which is where I'm usually at with my landscape shooting for maximum depth of field.A 24MP D600 will have no advantage over the D800 with respect to diffraction, actually in reality a slight disadvantage.If the specs are true, I would rather have this than the D800. Less diffraction issues.
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Bob
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Bob
Nope, the D4, V1, J1 are all not Sony sensors.sniptyler_dx wrote:
Standards of sensor technology nikon/sony is using and was applied in d7000 onwards almost guarantee it.as i shoot a lot of landscapes i am interested in the DR results. hope it'll perform comparable to the D800 in that area.
Hynek
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tyler_dx wrote:
as i shoot a lot of landscapes i am interested in the DR results. hope it'll perform comparable to the D800 in that area.
HSway wrote
Standards of sensor technology nikon/sony is using and was applied in d7000 onwards almost guarantee it.
Nope, the hamburgers are not expensive.MichaelEchos
Nope, the D4, V1, J1 are all not Sony sensors.
Higher megapixels definitely cause more noise but the final image is not just what the sensor produces, even raw image is gone through some filtering.+1 Lots of people have been complaining that higher megapixels will cause more noise, cause more diffraction, cause more motion blur bla bla bla.
They don't cause more noise. In fact they cause less noise. They just record more detail in the naturally occurring noise in the structure of light, just as they record more detail in everything. It's not that there was any less noise with bigger pixels, they just can't see the detail.Higher megapixels definitely cause more noise but the final image is not just what the sensor produces, even raw image is gone through some filtering.+1 Lots of people have been complaining that higher megapixels will cause more noise, cause more diffraction, cause more motion blur bla bla bla.
That is simply not true. Diffraction starts to show at exactly the same f-number whatever the pixel size. Look here:Higher megapixels definitely cause more diffraction, or more correctly, diffraction starts showing at larger aperture. Here is a calculator, try to change the pixel count for the same sensor size and see what is happening with the apertures below.
The 'crossing pixel borders' idea doesn't help you understand. Nothing will be aligned with pixels in any case, so there is no increased likelihood of 'crossing pixel borders'. All that happens is that more pixels records more resolution.Yes, higher megapixels can cause motion blur easier and it demands more stability to get the maximum resolution than lower megapixels. That is because less movement is needed to cross the pixel borders.
I do agree that more megapixels means more motion blur at 100% resolution, but we don't immediately print/display larger just because we bought a camera with a higher resolution.They don't cause more noise. In fact they cause less noise. They just record more detail in the naturally occurring noise in the structure of light, just as they record more detail in everything. It's not that there was any less noise with bigger pixels, they just can't see the detail.Higher megapixels definitely cause more noise but the final image is not just what the sensor produces, even raw image is gone through some filtering.+1 Lots of people have been complaining that higher megapixels will cause more noise, cause more diffraction, cause more motion blur bla bla bla.
That is simply not true. Diffraction starts to show at exactly the same f-number whatever the pixel size. Look here:Higher megapixels definitely cause more diffraction, or more correctly, diffraction starts showing at larger aperture. Here is a calculator, try to change the pixel count for the same sensor size and see what is happening with the apertures below.
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Same lens on D3 and D3X, in both cases the curve turns down (diffraction starts to show) at f/5.6
The 'crossing pixel borders' idea doesn't help you understand. Nothing will be aligned with pixels in any case, so there is no increased likelihood of 'crossing pixel borders'. All that happens is that more pixels records more resolution.Yes, higher megapixels can cause motion blur easier and it demands more stability to get the maximum resolution than lower megapixels. That is because less movement is needed to cross the pixel borders.
Contrary to popular opinion, it is quite possible to hand hold a high megapixel camera, for instance:
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This is a 100% crop at 1/25 sec, 35mm, hand held.
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Bob
I think we are agreed. However, the point I was making is that it's quite possible to hand hold a D800 without serious shake blur.I do agree that more megapixels means more motion blur at 100% resolution, but we don't immediately print/display larger just because we bought a camera with a higher resolution.They don't cause more noise. In fact they cause less noise. They just record more detail in the naturally occurring noise in the structure of light, just as they record more detail in everything. It's not that there was any less noise with bigger pixels, they just can't see the detail.Higher megapixels definitely cause more noise but the final image is not just what the sensor produces, even raw image is gone through some filtering.+1 Lots of people have been complaining that higher megapixels will cause more noise, cause more diffraction, cause more motion blur bla bla bla.
That is simply not true. Diffraction starts to show at exactly the same f-number whatever the pixel size. Look here:Higher megapixels definitely cause more diffraction, or more correctly, diffraction starts showing at larger aperture. Here is a calculator, try to change the pixel count for the same sensor size and see what is happening with the apertures below.
![]()
Same lens on D3 and D3X, in both cases the curve turns down (diffraction starts to show) at f/5.6
The 'crossing pixel borders' idea doesn't help you understand. Nothing will be aligned with pixels in any case, so there is no increased likelihood of 'crossing pixel borders'. All that happens is that more pixels records more resolution.Yes, higher megapixels can cause motion blur easier and it demands more stability to get the maximum resolution than lower megapixels. That is because less movement is needed to cross the pixel borders.
Contrary to popular opinion, it is quite possible to hand hold a high megapixel camera, for instance:
![]()
This is a 100% crop at 1/25 sec, 35mm, hand held.
--
Bob