yhelothar
Lifer
- Dec 11, 2002
- 18,408
- 39
- 91
Yeah, I really had no intention of going down these debate, and it is really moot anyways, since there are no 200+ MP APS cameras out there. What I was really trying to say was that you couldn't crop in on an image from a 15MP APS camera to make up the zoom difference between it and a SX30, without giving up resolution. What you give up in resolution may or may not matter, of course, depending on your final use of that image.
Back the OP's question. The G11/G12 are good cameras if you don't need/care about the superzoom capabilities. Many pros use them for underwater portraits because they are have a relatively cheap housing, have good IQ and have many of the same features/options as DSLRs. My father-in-law is a master craftsman photographer and uses a G11 as his fun camera when he doesn't want to carry around his Rebel (also a fun camera, he doesn't like using his work cameras for non-work).
I don't really wanna go down this debate either. How you use the camera matters a helluva lot more than anything. SX30is is a very capable camera that can certainly take very nice pictures.
But for me, I find it difficult to choose the SX30IS over a superzoom DSLR that costs the same.
I cooked up a few comparison shots of the crop DSLR vs a fully zoomed in SX30IS. For the crop DSLR shots, I took sample photos of the Tamron/Sigma 18-200mm @ 200mm, and I cropped it to 1/2.3" using a sensor comparison chart as a template.
Here are the results:
Canon SX30IS uncropped.
Cropped DSLR shots essentially at 42x zoom.
At a perfect sensor crop(42x), the SX30IS seems to come out ahead a bit, probably due to the cheap superzoom not close to being able to outresolve the sensor. Also the sample photos I was able to find for the DSLR isn't too good for demonstrating detail. The flower shot has really narrow DOF(another feature of larger sensors), and thus the tip of the flower is out of focus.
I'm sure at 30-35x, the DSLR would match the SX30 in quality, especially when posted on facebook or at standard flickr viewing size.
But at 1-20x, which is 90%+ of your shots, the DSLR would blow away the SX30is in sharpness, color accuracy, DOF, contrast, low light photography
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