Why did Canon build it this way?
"Better performance at all ISO's than 7d"
Just to clarify, that applies to JPG images and is because of Digic5. No info on RAW performance, yet.
Other notables pulled from the Q&A with Chuck Westfall:
- No manual control for video shooting - autoexposure only
- Contrast detect AF is 'a little faster'
- Lens performance on par with EF-S 18-135mm f/3.5-5.6 IS
Regarding the lens performance comment, I'd call the performance of the 18-135mm almost decent when stopped down to f/8 or so, but not very good wide open. Here's a comparison of the 18-135 to the much better 15-85mm at 24mm f/4
; if you set the dropdown for the 18-135mm to f/8, you'll see that at that point, it's getting closer to the 15-85mm wide open, but still noticeably worse away from the center. Keep in mind that the G1X sensor is close to APS-C and the pixel pitch is the same as current 18 MP sensor - that's enough to expose flaws in a lens, and IMO, if this lens is similar to or even a little better than the 18-135mm, there are plenty of flaws to expose (in particular, not very sharp in the center, mushy corners, lots of vignetting, and a fair bit of CA.