I need one to build a machine which can take photos of envelopes which fall, and read data from the pictures(barcode). So it has to have a good sensor to get some quality in the photo and probably be able to take photos at 1/4000 shutter speed or something like that. The shutter must last for 1 MILLION photos. Any ideas?

Let me explain:
I know that the shutter speed/aperature effect the way the light hits the physical film, but on a digital camera, they have the same settings, yet there is no film to expose to light. What’s the deal with that? How does a digital camera work, exactly, and why does it have the same settings as a manual eventhought it doesn’t actually expose ANY true film?

Just inherited a beautiful piece of camera history and was told that it might still work! Ok, yes, i know it’s not a M4 or R4, and might very well be the cheapo version of the Canon QL17 – neverthless i’m still interested in getting this camera to work.

Can someone tell me if this Camera will work without a battery? And if it does at what shutter speed?