At 02:07 PM 1/30/98 -0800, Rand Tomcala wrote:
>Jim,
>I don't have the curve that you refered to, but the Shipman87 book gives
>this chart for the F280 flash working distance vs shutter speed.
>Shutter speed working distance (this refers to OM77AF f1.8, ASA100)
>100 13 (feet)
>125 9.3
>250 6.3
>500 5.3
>1000 3.7
>2000 2.7
>*flash only, ambient light extends distance
>Although this chart was done with the OM77AF, I think that the data is
>totally indicative of the characteristics of the flash unit.
>Rand E.
I scanned the relevant chart from the F280 manual and put it on my Web
site. You'll find a link to the graphic file withing the paragraph
regarding this list.
http://www.charm.net/~tomokoy/olympus.html
The exponential curves Jim Terazawa was referring to show the dependence of
the flash working distance on the aperture used.
Tomoko Yamamoto
Photographer, Composer, Soprano
mailto:tomokoy@xxxxxxxxx
http://www.charm.net/~tomokoy/
-All the photos (except panorama) with OM's-
http://ep.com/ep/csp.html?csp=1130
-Olympus Equipment Classifieds-
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