BrianO Offline Dedicated FM Upload & Sell: On
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Marcus Watts wrote: The output power is what i would be interested to know too. If it could put out enough light i think i would prefer an actual unit as long as it worked on more than one lens. Surely it would but who knows.
I just went onto the Gary Fong Web site, and this is what it says about their ring flash:
"You'll get even, shadow-free lighting for your close-up macro shots. The ringflash is ideal for all kinds of macro photography including nature, medical, scientific and forensic photography whether you are a professional or hobbyist."
"Guide Number 46 ft ISO 100 @ 50mm"
"Adaptor rings 55mm, 58mm, 62mm and 67mm included"
So the guide number of 46 compares to the Canon 580EX's guide number of 190 feet at 105mm. (I wish they'd just give them in Watt/Seconds.) I can't find a reference for Canon's Macro Ringflash, but if I recall it's around 70 or 80 feet.
There's a little video where Gary talks about using ring flash in fashion photography, but he never really comes out and says that the example shot shown is made with his ringflash. Since the text talks only of macro photography, I'd be sure to check it out further before ordering one.
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