Abbott Schindl Offline Upload & Sell: Off
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Scott: You added an "f" to the original post: the price is 65% OF original, not OFF the original. Still a good deal, I just didn't want the thread to get bogged down with super-unreal pricing.
As for the 5DSR, I've not had problems shooting at 1/125 and a little slower using IS in my various Canon f/4 zooms. I've been satisfied with ISO 1600 and higher in a pinch, which makes these relatively slow shutter speeds possible in low light. The OP expressed concern about shutter speed, but it's important to understand the camera's noise characteristics and how they fit with your view of "good image".
Next, I've found that Canon's newest lenses that I have (16-35 f/4L and 100-400 (II)) are noticeably sharper than most of my older lenses such as the 24-105L, 70-200 f/4L IS, 135 f/2L, and even the 100L macro IS. But that doesn't mean that the images these older lenses produce are soft: they're just not as sharp as newer lenses. So: what's your criterion for "sharp"? I rarely print larger than 17x22, and these images are sharp at that size when viewed from a reasonable distance of a couple of feet or more. Similarly, images from all of my lenses except the 50 f/1.4 look sharp on my monitor until I go to 100% magnification, at which time I sometimes am disappointed. Everything's relative.
When I compare the 5DSR's 50 mpxl images with my 1D4's 16 mpxl at similar magnification (i.e. details in images from both cameras are scaled to be the same size on my 27" monitor), the 5DSR's "soft" images are still at least as sharp as my 1D4's "really sharp" ones. So, what's "sharp" to you?
I think we sometimes get carried away and judge "sharp" as "sharp when viewed at 100%", and naturally that criterion gets harder to achieve as sensor resolution increases. For example, I had to improve my support technique when I went from an EOS 20D (8 mpxl) to the 1DIII (10 mpxl), and then a big steadiness improvement moving to the 1DIV, and now another technique improvement for the 5DSR.
I also find it interesting that I read so much about "only the lenses on Canon's list will give sharp images with the 5DSR" (I find this false, but it's a nice guideline and good marketing), and "you've got to work extra hard to steady the 5DSR" (true, but I still generally get sharper images with the 5DSR than with my other cameras), "you need to keep the ISO low to get the best images" (also true, as it is of any camera) and so on.
What's interesting is that I see very little similar discussion about the 7D2, which has almost the same sensor resolution, same DIGIC back-end, apparently a slightly lower build quality (examples: tripod mount, mirror damping mechanism—they're still very good) than the 5DSR and so on. I guess I need some enlightenment here...
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