DXOmark - A7 and A7R

uhoh7 said:
DXO is very silly.

I have a7 which I quite like. Soon after, I also bought an m9.

Read the DX oh scores and you would think the a seven is a better sensor. Yet I now shoot almost 90% with the M9. That's in spite of, not because of, the focusing system.

M9 is a lot sharper and I like everything about the images created. I like the colors, and the dynamic range is perfectly fine once adjusted in light room.

The D XO scores of the M9 are simply very very misleading, for real world photography.

I will never trust their scores for anything again. I'm not sure what they are measuring, but it has nothing to do with creating images.
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I don't think they are too far off. I have used the M9 in a number of circumstances that have blown highlight because I had to expose for shadows. On one hand, one could try to find the middle ground, but often, lifting the shadows by 2 EV tends to lead to a lot of noise. In many ways, shooting the M9 is like shooting with slide film, just with an LCD that tells you whether you mucked it up or not. The flip side is an Olympus EM-5 I used once upon a time wouldn't have much issues in the same circumstance.

But yes, I do agree the M9 files have a nice quality to them.
 
DxO scores are not all that matter, but they are in my experience very accurate for what they analyse. Higher dynamic range and colour depth might not be visible much of the time, but when it matters, it matters... and you can see it. I can see a huge difference between the A7 sensor and that in my 5D III in high contrast light. I can also see the superlative colour of the sony sensors.

One also has to be careful with 'sharpness' because altho some sensors' outputs need to be sharpened more than others, some that need less sharpening, can take less sharpening before they look overprocessed. This is why to many eyes, a D800 file (that requires more sharpening than the D800E) looks every bit as good as the D800E file 'in the end'. The Leica MM is a good example: you hardly need to sharpen the files at all and if you do, you have to be careful you don't go too far.
 
I am genuinely interested in learning how to apply sharpening to to the analog signals from the sensor sites, or even how to achieve sharpening by modifying the photon counts estimated by the ADC that are written into the in-camera raw file.
 
willie_901 said:
I am genuinely interested in learning how to apply sharpening to to the analog signals from the sensor sites, or even how to achieve sharpening by modifying the photon counts estimated by the ADC that are written into the in-camera raw file.
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There's a lot of work being done in high-end light microscopy on this topic. Electron microscopy, too. See, for example:

http://www.ncbi.nlm.nih.gov/pubmed/24106307
 
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