ultra slow opening of CR2 files

Bugs found in XnView Classic. Please report only one bug per topic!

Moderators: helmut, XnTriq, xnview

Post Reply
gsf
Posts: 12
Joined: Sun May 15, 2011 8:14 am

ultra slow opening of CR2 files

Post by gsf »

XnView supports Canon's Camera Raw format (CR2), but opens a file very slowly. A single 20 MB file opens for a 20 seconds!
See a process monitor log here and a sample file.
Having a 100% reproduce of that bug.
User avatar
xnview
Author of XnView
Posts: 46249
Joined: Mon Oct 13, 2003 7:31 am
Location: France
Contact:

Re: ultra slow opening of CR2 files

Post by xnview »

Do you use 'embedded thumbnail' in View>Misc - Camera raw?
Pierre.
gsf
Posts: 12
Joined: Sun May 15, 2011 8:14 am

Re: ultra slow opening of CR2 files

Post by gsf »

No, I use full size:
Image
If i choose embedded thumbnail, the read speed increases, but losing a quality. Is it hard to read the whole RAW instead of jpg thumbnail inside of it, but not freeze that hard? The software like lightroom or canon's digital photo professional reads the file very fast without losing a quality.
MaHi84
Posts: 1
Joined: Sun Mar 17, 2013 7:28 pm

Re: ultra slow opening of CR2 files

Post by MaHi84 »

Old topic but it would be great to have an option for loading thumb first and refresh the view after a few seconds if full size loaded (in background without freezing).
Post Reply