Affinity photo raw file wrong size and aspect ratio

[Filippo N.]

 Dear customer service, I'm trying the trial version of affinity photo 2, in windows 10 and with raw files from a canon 5d mark 3. I have a problem with the file size. When I open the file in person developing the file loses size and aspect ratio, becomes a few pixels larger.(for example: if file is 6000x4000 pixels when I open became 6010x4007 pixels). Is it possible to fix this annoying problem with some settings? I never had this problem in camera raw. Thanks Filippo.

Edited May 17, 2023 by Filippo N.

[Lee D]

Hi @Filippo N.

Welcome to the forums.

I've done some testing with a sample .CR2 file from a Canon 5D MKIII and I get different pixels sizes in different Windows apps.
Raw Therapee 5.8 = 3862x5788
Camera RAW 14.2 = 3840x5760
Affinity Photo 2.1.0 = 3870x5796

I checked using a couple of other RAW files from different makes and models and each app shows slightly different sizes.

I can log this with our developers to take a look, but may be a question of which is correct.

[carl123]

Is this relevant here?

 

[Filippo N.]

Hi Lee D, 

The only correct is camera raw, because respect the aspect ratio 3:2 3840x5760 , the ratio is 1.5.

In  my first question i only write example number 6000x4000 but in camera raw i have exactly your number 3840x5760 that ratio is 1.5 and in affinity 3870x5796 that ratio is 1.497 (wrong)

Thanks Filippo 

[Filippo N.]

In canon 5d mark iii specs they say the raw file size is 3840x5760, so this is the only correct size.( camera raw)

[Lee D]

16 hours ago, carl123 said:

Is this relevant here?

 

Wow 2018 that was a while ago and it may still be the case. The RAW engine used has gone through a number of updates since then but I can recheck with the developers to see if this is still by design.

[Filippo N.]

Yes is the same problem from 2018, for affinity developers so this is normal.....but this is a bug....normal is when you can open the file like canon or other brand write in their specifications. I wish somebody resolve it...thanks again 

[Patrick Connor]

We simply show all the pixels that the array in the camera has shot. Other applications choose whether you want those edge pixels for you, we do not. We can make a request that there is an option to clip to a set size, but that is an improvement, as this is not a bug, the file includes that data.

[Filippo N.]

Hi Patrick, yes I understand. But if camera raw (photoshop)that can be considered a reference for all still.... if they show the pixels that camera brand declares maybe there is a reason. Or maybe affinity will be the future reference ;)... anyway I bypass the "bug" with a macro that cut automatically the correct size. Thanks 

[Patrick Connor]

I think it should be an option to automatically do this myself. Thanks for coming back to me and Welcome to the forums