They can work fine in low light - how good is your eyesight? As far as brightness - that's a function of the focusing screen and speed of the viewing lens. Most lower priced fixed lens TLR's have an f/3.5 viewing lens. Some cameras, the Mamiya comes to mind, can have either a prism finder or a porro finder mounted. The porro finder gives you eyelevel viewing, but with mirrors instead of a prism - they are MUCH dimmer!Originally Posted by snaggs
This wasn't shot with a normal lens (I used a 55mm wide angle on a C-220), but it's one of my favorites. I braced myself against a door jamb and handheld this at 1/4 second on Ektachrome EPP.