Yes tons of stuff can be ordered for next to nothing from China but be sure to check the quality. So sometimes this stuff is just billig (cheap) and not günstig/preiswert (good value for money)…. Caveat Emptor.

So recently an article was linked on reddit about a bunch of photography myths. Number 7, called “Saving a JPEG multiple times degrades quality” which was apparently proven to be wrong disturbed me most and so I did a quick test on my own.

Further below are Three images. The Original, the one saved 30 times and an XOR of the first Two showing the differences. If you toggle between the first two you can see quite a difference in the color on the car and several other details. Running any more tests at lower than 100% quality is pretty much a waste of time once you see these results.