rpm40
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Senior Member
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Posts: 2,411
Re: G7 X III (and maybe G9 X III) arriving in early 2019 (RUMOR)
1
danm_cool wrote:
Pov2 wrote:
There is some fish-eye-like distortion at 24mm, that's why there are black corners in RAW. But it gets "de-fished" by the camera processor. And it should be corrected by the RAW software. My software does it automatically and the images at 24mm have good sharpness, resolution, no distortion.
it is not fish eye like (fish eyes are whether 180 degrees diagonal or 180 degrees border to border) , but simply a high distortion with lens not covering the entire sensor, which means that after correction, resolution is lost!
please check imaging resource review, it is very clear about the issue, the difference between center and corners is just huge, a smartphone will have better resolution in corners!
https://www.imaging-resource.com/PRODS/canon-g7x/canon-g7xA4.HTM
The corner performance at 24mm isn't great, but then again, the lens design makes compromises. 24-100 f1.8-2.8 is very ambitious spec for its size and price. Sure, consistency across the frame seems better on sony's 24-70mm lens, but you lose reach and the newer models are twice the price of the Canon. If you consider specs, price, and quality, the Canon is competitive.
As was said, different people will have different standards. For many, IQ at 24mm will be fine. If you don't like the 24mm sharpness, start at 28mm. If you aren't satisfied with a lens that struggles under certain conditions, these large sensor/fast lens compacts may disappoint. Compare with, say, the Ricoh GR.