confirmed e. g. the Rolli 35T slip case is like a changing bag saves cost of switch
but Pentax K1000 and earlier spots have a auto
light sensitive switch to reduce residual to zero in near dark
no way of telling how good your bag is...
so undesirable unless bag is light tight and you use caps switch off & affix cap before sticking in bag
the OM1 sensors can detect light leaking from eye piece
you need to be using silver or air battery for 1/3 of a stop accuracy.., the Pentaxs can use any battery with some life left, they have a balanced bridge circuit
OM are nicer though... furtively hides awaiting wrath
but if you are using om2 leave them off all the time they only need to be on if the shutter is slower than 1/30 they will meter off the film ok in auto when speed faster than 1/30
The other OMs are automatic but you need to down load the manual.
Last edited by Xmas; 09-24-2013 at 12:33 AM. Click to view previous post history.