RAW file very very big / RAW-Datei wird sehr gross

[Newbee2021]

Hello,

I´ll write in English and German (below).

• I opened a RAW file of 42 mb with affinity photo and worked it. When I saved it as afphoto this file had increased to 680 mb (!!!). Is this normal? Does affinity not work with xmp-extensions as Photoshop or Lightroom?

• Ich habe mit affinity phot eine RAW - Datei mit 42 mb geöffnet und bearbeitet. Die als afphoto abgespeicherte Datei hatte dann 680 mb (!!!). Ist das normal? Arbeitet affinity photo nicht mit xmp-Erweiterungen wie Photoshop und Lightroom?

Greetings / Grüße:

 

Guenter

[IanSG]

12 minutes ago, Newbee2021 said:

• I opened a RAW file of 42 mb with affinity photo and worked it. When I saved it as afphoto this file had increased to 680 mb (!!!). Is this normal? Does affinity not work with xmp-extensions as Photoshop or Lightroom?

AP doesn't use sidecar files - everything's saved in .afphoto files, and they can be huge!  The exact size depends on what editing's been done and things like saving snapshots and the editing history, but I don't think your case is unusual.

[Newbee2021]

14 minutes ago, IanSG said:

AP doesn't use sidecar files - everything's saved in .afphoto files, and they can be huge!  The exact size depends on what editing's been done and things like saving snapshots and the editing history, but I don't think your case is unusual.

 

[Newbee2021]

OK, thank you. I couldn´t imagine this and I thought, that I might have done anything wrong in my settings.

[walt.farrell]

What are the pixel dimensions that your camera produces? That will determine the final size (in MB) of an image when developed.

For example, suppose it produces 2000 x 3000 pixel images, which gives you 6,000,000 pixels.

In the RAW file, each will take (perhaps) 12 bits total. That will give you 72,000,000 bits, or 9 MB. (So, your camera probably takes bigger images.)

When you Develop, you have a choice of RGB-16 or RGB-32. Suppose you use RGB-16. That requires 16-bits per channel (R, G, B) plus 16 for transparency, or 64 bits per pixel. So, instead of 9MB, you now have 48 MB (6 million pixels * 64 bits per pixel).

Additionally, your .afphoto file will contain a Snapshot of the initial file, effectively doubling it in size, and giving you 96 MB. (You can delete that Snapshot if you want to.)

[David in Яuislip]

2 minutes ago, walt.farrell said:

When you Develop, you have a choice of RGB-16 or RGB-32

^^This^^

After developing the raw image with all defaults I see these results

188,808,112   90Dsample-16.afphoto
574,242,565 90Dsample-32.afphoto
47,818,311    90Dsample.CR3