Right, it makes sense to ban flash photography, but that doesn't preclude a museum making high resolution photos available for free. Also, museums will often ba

Right, it makes sense to ban flash photography, but that doesn't preclude a museum making high resolution photos available for free. Also, museums will often ban photography on grounds that it can reduce or obstruct visitor egress (which is often a reasonable reason depending on circumstance). Moreover, a museum-generated photo made under ideal conditions is going to be of much higher quality than any visitor can do on the spur of the moment. One often sees the problem in some Wikipedia photos, that's when the only photos publicly available are ones made by visitors who shoot under sub-ideal conditions with the object under glass or in a glass case, etc. For example, years ago I tried to take a photo of the Mona Lisa in the Louvre and gave up. It's so well protected one may as well look at an official photo rather than just view it—let alone bother to attempt to photograph it. Incidentally, that wasn't the case with another work of art—Caravaggio's The Fortune Teller. During the same visit I photographed it without flash and considering it's a pretty good photograph (it was well lit): https://en.m.wikipedia.org/wiki/The_Fortune_Teller_(Caravaggio) https://en.m.wikipedia.org/wiki/The_Fortune_Teller_(Caravagg....