Hello,
I have a lot of phoographies I would like to view in diverse directories. Which programm is the best to view all photographies, delete them, see the next ones?
Its a bit long to click, open, close, eventually delete.. with antix File viewer (Debian derivate).
Any advice is welcome.
Thanks.

I use Slackware & find Digikam to be the best for my needs.

Digikam might be a bit heavy - and does a bunch of indexing that may not be needed on a quick view of photos. feh keeps popping up on my radar, but I haven't tried it. cli, apparently fast, and has a bunch of key bindings (n{ext}, p{revious}, <Crl>-<delete> for delete - see the manpage). No massive desktop dependancies ...

My favorite program for scanning through photos is Gwenview, which is a KDE program.

I have feh installed, but it has this disadvantage: In my experience, it will open a picture at its default resolution. If you are using a GUI and that resolution is larger than your screen resolution, the image will be larger than your screen. You can resize, but that detracts from its ease of use.

You might take a look at xnview. It's been a long time since I used it, but, as I recall from my early Linux days, it was the closest thing I could find to VuePrint, which was my favorite image viewer for Windows.

Just installed feh. Looks good - total download of 383 kB on Fedora 20. Both the -F (fullscreen) and --scale-down worked ok for my big images on this 1920x1080 laptop display.
It didn't like NEF much (I shoot both jpeg and raw concurrently), but did pull the embedded jpeg and displayed it as a thumbnail.

For spinning through a collection quickly I reckon it's just the thing.

OK, my last word on this ...
I just scanned up a box of old (1984) Ektachrome slides for a test - produces jpg. Rather than having to faff around selecting/importing using something like Shotwell or DK, I decided this was a reasonable test for feh. Just run it against the sd card.
Worked a treat. I used the following to scale shots to my screen and set the "0" (zero) key as my delete key - use an alias. Fast and couldn't be easier (for me). This might actually motivate me to get going on that scanning job that I've been avoiding ...

Thanks for the update. I'll have to take a closer look a feh.

I agree with frankbell about Gwenview. There are also settings for it to load to cache when you enter a directory. Bottom line, you have limited RAM and 10,000 images in a directory, it's going to be slow. But if you have some reasonable amount of them and normal RAM, it will work. Further to this are 2-3 things: You can tell Gwenview to look at, or ignore video files, I'd pick "ignore". You can look at a browse of your image files showing previews and either CTRL select, or CTRL-arrow key->space select various files and then move or delete from the top level browse versus each individual file opened to screen size. Doing it that way is faster, providing you can see enough of the previews to make your assessments.

Gwenview made me happy.