3 ms·I think the EOS Rebels. Of course you could go back to all mechanical; but this is a decent compromise.by mc32 4y agoI think the EOS Rebels. Of course you could go back to all mechanical; but this is a decent compromise.frostburg 4y agoNo EOS camera is mechanical because they all use EF lenses with electronic aperture control, I don't think that's what the parent post asks for.mc32 4y agoI interpreted it as film. For mechanical the old Pentax K-1000 is a nice entry option.