There is distortion when load RAW file (ARW) of RX100MVA,

[Raenil]

Left is when load with affinityphoto, right is open with honyview

there is distortion and low saturation when with affinityphoto, 

[DWright]

Can you please provide further information on the RAW file that you are using as when I test a sample RAW file from this camera I am not encountering the issue that you are and are you using the Mac, Windows or iPad version of Affinity Photo

[Raenil]

Here is  EXIF information, and I use Win 10 x64

[v_kyr]

Looks like the auto lens correction does not work properly here or doesn't recognize the cams build-in lens then. - Did you tried if things might change here when you manually tweak the lens correction distort settings etc.?

[Raenil]

Oh, it work! When I try distortion in lens correction, it make blank part like ")("(even up and down side) So I think I is not best way.

But use scale and compare with Honeydew, the two images almost same.

So Jpg or ARW file with other view is cropped image, maybe 117 %

 

I use - 30 % Distortion and 117 % Scale. may be it is not perfect but It is my best setting