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Canon G5X II user review and why I'm returning it

Started Sep 6, 2019 | Discussions thread
axlotl Senior Member • Posts: 2,273
Re: Canon always cutting corners (literally)
4

Jared Huntr wrote:

siberstorm27 wrote:

-Underwhelming noise performance. Even at base ISO I don't like the grain at all, and gets much worse past 800. This isn't unique to canon. The rx100 is no different. All the 1" compacts have basically been regurgitating the same sony sensor for years now, with faster readouts but no image improvements. The raws between them all look the same. It's suppose to be 20MP but the resolved detail is barely better than a 12MP smartphone because the pixels always look unflatteringly small and pokey in raw images and once you denoise it to make it look smoother, there goes all the detail.

The RX100 VA compared to the G5x mk1 and mk2 is like night and day when it compares to pixel level detail and noise performance.

I have the RX100.5A and the G5X.2 and have been testing them carefully side by side. I find the two cameras have identical pixel lelvel detail and luminance noise at low and high ISO settings.

The problem with Canon is that they cut corners with their lens design such that the image circle fails to cover the entire sensor.

All the compact camera lens designers do this.

For example, here is the raw image from a G7x ii which is similar in performance to the G5x series when it comes to optics:

The lens on the G5X.2 is all new and much better then that on the G5X.1 and  G7X models.

On my tests the lens on the G5X.2 is equal to that on the RX100.5A at the wide end, center, edges and corners  and better at the long end of the Sony with the Canon having a larger maximum aperture at the intermediate settings.

Andrew

By the time the camera processor digitally unwarps the image and crops out the black corners, it is left with a 16 Mp image which it then up-samples back to a 20 Mp image. Most users frown on digital zoom and yet we are forced to accept it with this class of Canon cameras. No wonder why details look so crude at the pixel level and noise is magnified.

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