Simple bulb only shutter

[ottluuk]

What about a sector shutter? Basically a rotating disk with a cutout for the open position. I think a rotating design would be easier to build and control than a large sliding piece or flapping door. Apologies for the crude drawing but maybe something along those lines?

[moizak]

What about a sector shutter? Basically a rotating disk with a cutout for the open position. I think a rotating design would be easier to build and control than a large sliding piece or flapping door. Apologies for the crude drawing but maybe something along those lines?

That actually looks pretty good!! I think I may try and mock something up this weekend, thank you!

[Jim Jones]

The rotating shutters on the early Kodak (and other) box cameras would be easy to copy, and provide instant and time exposures. Varying the spring tension could give a modest range of instant exposures. Rotating shutters can be bulkier than a guillotine shutter. Adding one part to either type can provide bulb exposures.