MaxTech Transceiver - Manual (Page 45)

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If your c amera’s maxim um sync sp eed is s lower than the nu mb er listed th en you
mu st u se th e slower s ync s peed. C amera eq ualization does not give a cam era fas ter
sync sp eeds than th e cam era is des igned to h andle.
For all shutters it can be assumed that a camera with faster external flash sync speeds
(X s ync) will have faster sh utter travel than c ameras with s lower X s ync s peeds .
Fas ter sh utter travel times incr ease the allowab le variance. T he table above is b ased
on the following shutter travel times:
• Focal Plane (35mm) – 1/1000 (0.0010) to open, 1/1000 to close
• Leaf shutter at f: 8.0 – 1/2000 (0.0005) to open, 1/2000 to close
If a f lash is g enera ting light w hile th e sh utter is m oving th en you will s ee the s hu tter in
the exposure for focal plane shutters. You will see a loss in F stop exposure using a
leaf shutter if the flash is generating light as the shutter aperture opens or closes.
A variable flas h du ration will also aff ect thes e calc ulations. A slow f lash is visible for
longer and more likely to affect exposure while the shutter is in motion. A short flash
dur ation reduc es th e likelihood of timin g varianc es af fec ting the expos ure.
It is d iff icu lt to m easu re a s hu tter’s travel tim e or a flas h u nits du ration an d it u su ally
requires extremely expensive test equipment. Some electronic flash manufacturers
print their flash durations in their manual. The best method for understanding your
equipm ent’s eq ualization cap abilities is to s hoot m any test expos ures over a range of
settings.
Rec omm end E quip men t for the b est res ults
• Con sis tent lag tim e cam eras
• Cameras with ast sync speeds
• Elec tronic flash equipm ent with s hort flas h du ration