Operating Instructions

48
Manual flash is also possible with the Speedlite 133D
on MANUAL. In this case, it is necessary to figure the
correct aperture by guide number formula:
Distance Shooting
Number Guide
Aperture =
Make sure both guide number and shooting distance are
in the same unit, whether meters or feet. For further
details on the use of the Canon Speedlite 133D, please
see its instructions.
The following table gives proper synchronization shutter
speeds for flash photography with various other types of
flash units and bulbs. When using a flash other than
Speedlite 133D, it is necessary to figure the correct
aperture by guide number calculation as described above
or, in the case of an automatic electronic unit, by its
calculator dial. Follow the instructions of the particular
flash.
Type
Synchronised
Shutter Speeds
FP class (#6, Press 26)
1/125 or faster
1/30 or slower
M class (M3, #5, Press 25) 1/30 or slower
Flash-
bulbs
MF class
AG-1, AG-3
(M2, Flashcube)
1/30 or slower
Electronic Flash Unit 1/60 or slower
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