On 21/11/2007, David Gerard dgerard@gmail.com wrote:
Yes, that's exactly it. The nicely cropped JPEG may be more suitable for our daily use, but the original file (PNG or TIFF or DNG) is of value for making better derivatives from. I'll tend to note on the JPEG "nice crop of xxx.png, please use that for derivatives."
I suppose you could have a DNG, your own PNG developed from it and then a perfectly cropped and tweaked JPEG for actual use, all linked.
Might need to change the wording that results when you do this:
http://commons.wikimedia.org/wiki/Image:P%26A_betweenChichesterandArundel.pn...
to explain things.
They might! You never know!
They don't. Additionally a lot of our photos come from camera phones and the like. High res stuff tends to come from a very small number of users NASA or scans. There isn't much you can do about this.