[asielen]

Tiff if you want to archive them and they started as raw or tiff, jpeg for everything else. If the file is already jpeg, there is no point in covering it to a new better quality format, the quality won't get better than it already is.

It may be obsolete, but it is ubiquitous. I care less about cutting edge tech than I do about the probability of being able to open it in 20+ years. Storage is cheap.

Presentation is a different matter and often should be a different format than whatever your store the original files as.

[acomjean]

And jpg isn’t that bad when encoded at high quality, and not saved repeatedly.

I took a tiff and saved it high quality jpg. Loaded both into photoshop and “diffed” them (basically subtracted both layers). After some level adjustment you could see some difference but it was quite small.