SCIENTISTS have yet to determine what percentage of art-viewing these days is done through the viewfinder of a camera or a cellphone, but clearly the figure is on the rise. That’s why Ruth Fremson, the intrepid photographer for The New York Times who covered the Venice Biennale this summer, returned with so many images of people doing more or less what she was doing: taking pictures of works of art or people looking at works of art. More or less.

Only two of the people in these pictures is using a traditional full-service camera (similar to the ones Ms. Fremson carried with her) and actually holding it to the eye. Everyone else is wielding either a cellphone or a mini-camera and looking at a small screen, which tends to make the framing process much more casual. It is changing the look of photography.

Image The visitor as photographer. Credit... Ruth Fremson/The New York Times

The ubiquity of cameras in exhibitions can be dismaying, especially when read as proof that most art has become just another photo op for evidence of Kilroy-was-here passing through. More generously, the camera is a way of connecting, participating and collecting fleeting experiences.