Finally Canon releases the camera we should have had years ago. Now for the (weather-sealed) EF-S L lenses to match ...
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If Sella wanted to compare tech he should have said so, but he used the term "full frame;" by definition, that is a sensor with dimensions equal to a frame of 35mm film. That is the defining characteristic of "full-frame."
You're suggesting that if I crop an APS-C FoV from a shot with my 1D X, that the IQ of the resulting 7 MP image will be the same as the IQ an uncropped image (assuming I adjusted the framing with a zoom lens or changing the distance). Sorry, that's simply not true.
Just because a sensor is larger doesn't mean it has less noise and indeed, if you were to take two sensors that used pixels of the same design then both sensors would have equal noise.
If you want to compare sensor technologies, then the size of the sensor is less imporant. If you want to compare a FF camera to an APS-C camera, then it's essential to include the entire area of each because those are the defining characteristics of each.
So what's your intention? Are you comparing sensor tech or actual cameras with FF and APS-C sensors?
Um, if you're excluding the light outside the center (crop-equivalent) area, you're not comparing a FF to a crop-frame; you're comparing a crop-frame to a crop-frame.
The comparison is absolutely meaningless unless you compare the full area of the FF against the full area of the crop-frame.
Nikon 35-70mm f/2.8 AF-D Macro - fully disassembled, I was able to fix what was causing the zoom and focus to not be smooth, however, I was not able to reassemble it (I like fixing Canon gear much more)
So it boils down to these two points?
So you're wrong even about your own behavior. Interesting.
I'm not really sure what your point here is ...
Wrong. Care to try again?
Changing the distance would alter only perspective, an aesthetic change with no relevance to the sensor comparison.
Instead, you'll suggest (oddly since you have zero information to go on regarding how I choose glass) that I either don't care about color or image quality ("I have found that L-lenses generally have better colour and more pleasing image rendition than non-L-lenses (made by Canon). But I suspect you don't view lenses in this light.") or that I am somehow incapable of learning a concept ("If you don't know why this is desirable, then you also wouldn't understand it if I explained it to you). I prefer to speak plainly.
Don't retrofocal designs increase the back focus distance? How does reducing the back focus distance eliminate the need to increase the back focus distance? If the goal is a shorter back focus distance, then you are talking telephoto, not retrofocal, right? Maybe not.