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Ricoh GX 200
(Entry Nr. 2067, by user 1 | edit)
i use the "F4000 (12M)" setting when making photos with this camera. That results in JPGs with 4000x3000 pixels. The compresses size is about 4.2 MB. I recompress them afterwards with this command (linux):

for i in R*.JPG; do convert -verbose -quality 75% "$i" "s$i"; done

75% sounds a bit low, but there is almost no visible difference in quality. Only in areas of small details with high contrast, there is a visible loss of quality.

It would probably be a good idea to try out the "N4000" setting of the camera. I think the "F" means something like 98% jpeg quality and the "N" means something lower. Will test it next time.
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