Kodak Darkroom Timer strobe 5 SL is a tiny

5 SL is a tiny pancake-style wide angle lens designed for Nikon F mount film and digital SLR cameras

26mp sensor

It's a Nikon F accessory shoe

so it can't be opened when you're wearing it

but there's no effect on function- just cosmetics

Kodak Darkroom Timer strobe 5 SL is a tinyThis neat old Kodak timer is a mechanical stopwatch, basically: it counts up instead of down, and there's no bell, so you have to keep track of the time yourself. If you're looking for a traditional timer, this is not it. But if you want a cool red wind up thing that ticks, you will probably like this. In good working order, with some cosmetic wear.