Overview
The 640 WS Einstein™ Flash Unit features action stopping flash durations, color consistency, and the broadest power range. The flexibility of the power range allows for everything from over-powering the sun, to shooting indoor portraits with a wide-open aperture.
Perfect for: Professional photographers in any field. Sync Cord Comp
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Great company to work with. Fast communication and was able to problem solve on a mistake I had fast. Always my lighting go to :)
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Anonymous · September 22, 2026
I own 2x Einstein Flash units and they perform flawlessly. The love the clear color display on the back that lets me truly fine tune exactly the light I want in each session. My shoots are primarily studio settings so I don't require the battery system that seems to be the rage today. That just seems to be another item to break or need replacing just when I need it. Highly recommend th Einstein flash.
