What effect do bright lights have on DSLRs? For example, would shining a flashlight into the lens have any effect?
The flashlight I am currently using is 300 lumens.
Photography Stack Exchange is a question and answer site for professional, enthusiast and amateur photographers. It only takes a minute to sign up.Sign up to join this community
A flashlight is similar to other light sources. A camera measures light, so shining a light will affect exposure. When light entering the lens is very strong, some of it will reflect outwards and bounce back and forth between lens elements. This will cause an artifact called Lens Flare. Again, this is not particular to a flash light but will also happen with the sun for other bright source.