Hooked up my 5600 and the Bare Bulb Head. Used flashmeter 3 times @ 10 ft.
Like Roger says: ~5.6 @100 ISO, just a tad higher, not quite to 8.
My room has white walls and ceiling, dark carpet. Meter was ~4 feet off
floor, flash was ~2 feet off floor. Meter was set for incident light.
BTW, you don't need to have the OM, or any other base on the 4600 or the
5600 for the bare bulb head to function.
Brian P. Huber
> -----Original Message-----
> From: owner-olympus@xxxxxxxxxxxxxxx
> [mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of jowilcox
> Sent: Friday, November 03, 2000 11:05 AM
> To: oly
> Subject: [OM] Bare Bulb Flash
> Oly Shooters:
> I've just picked up bare bulb head for my Vivitar 4600 flash with
> ded module
> for Olympus. With this head in place, the settings appear to be
> very simple:
> it does a full dump. No TTL, no auto, just a dump of everything it's got.
> The only spec associated with the output is "60 watts/sec."
> Vivitar simply
> suggests using a flash meter. Hey, I would always use a flash meter if I
> actually had one.
> Based on 60 watts/second, is there a way other than brute
> empirical testing to
> ballpark a guide number for this type of light source?
> Joel Wilcox
> Iowa City, Iowa USA
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