Luminous Landscape Forum
Equipment & Techniques => Digital Cameras & Shooting Techniques => Topic started by: LostArk on January 05, 2015, 09:56:14 am
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Because HSS uses multiple flash bursts to expose the subject, would that introduce motion blur with fast moving subjects? I'm assuming just like with standard x-sync, shutter speed is irrelevant? Thanks!
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Because HSS uses multiple flash bursts to expose the subject, would that introduce motion blur with fast moving subjects? I'm assuming just like with standard x-sync, shutter speed is irrelevant? Thanks!
At least in the Nikon variant, HSS or Auto FP means the flash bursts repeatedly very quickly (thousands of times a second) at very reduced power level such that to the focal plane shutter it appears to be continuous light. Hence, it should have no effect on motion blur which will be dictated by the actual shutter speed. If the selected shutter speeds stops the action without blur w/o the flash, it will do the same with the flash. I kinda think of it a using the modeling light on a studio flash. You're using the low power continuous light instead of the high power flash burst.
This exposureguide.com image gives a reasonable representation.
(http://www.exposureguide.com/images/high-speed-sync-flash/high-sync-flash.jpg)