
Remember that the camera's auto exposure con- trol works only with constant light sources such as sunlight or photo floods and not with an instan- taneous source such as a flashbulb or an electronic flash .
Setting the synch selector
To set the camera for flashbulb, lift up the milled synch selector ring around the 
Caution : Flash units without a hot shoe may fire accidentally when being slipped into place or when a flashbulb is inserted. Although not recommended, acci- dental firing may be prevented by covering the 
Shutter speed (sec.)
Flashbulb  | Symbol  | 
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  | 1  | 2  | 4  | 
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  | 1/1000 | 1/500 | 1/250 | 1/125 | 1/60  | 1/30  | 1/15  | 1/8  | 1/4  | 1/2  | B  | |||
M  | a  | 
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FP  | 
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  | |
MF  | 
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x  | ~  | 
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(Speed light)  | 
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