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pixel dimensions of cr3-file incorrect

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When I load cr3-files shot with a Canon RP into Affinity, the pixel dimensions are 6264x4180px. They should be: 6240x4160px (says other software and the manual).

Why is that so?

Thank you




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Welcome to the Serif Affinity forums.

The camera manufacturer provides a sensor of size X by Y, but knows that the outer edges may give inaccurate data. So they claim the dimensions are smaller so that the outer edges of the data can be thrown away.

The manufacturer's software, and most other software, simply believes the manufacturer's stated size and also eliminates that data. Serif does not. Its RAW processing basically provides everything to you, and lets you judge whether there was any useful information in that area that others automatically crop out.

This is intentional processing, and not a bug.

-- Walt

Desktop:  Windows 11 Pro, version 22H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 
Laptop:  Windows 11 Pro, version 22H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
        Affinity Photo 1.10.6 (.1665) and 2.1.0 and 2.1.0. beta/ Affinity Designer 1.10.6 (.1665)  and 2.1.0  and 2.1.0 beta / Affinity Publisher 1.10.6 (.1665)  and 2.1.0  and 2.1.0beta
iPad Pro M1, 12.9", iPadOS 16.4.1 (a), Apple Pencil 2, Magic Keyboard

      Affinity Photo 1.10.7 and 2.1.0 and 2.1.0 beta/ Affinity Designer 1.10.7 and 2.1.0 and 2.1.0 beta/ Affinity Publisher 2.1.0 and 2.1.0 beta

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I didn't know that! Thank you so much! Although I think Affinity's point of view here is something laudable, I would suggest a disclaimer or something similiar, when opening the file. The user should know that Affinity is handling things here differently from the very start. I exported exrs yesterday to bring them into a compositing software and things didn't match here(aspect ratio is slightly different). It costs me hours to find out what's going on.

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