Also, when the ready light comes on, flash may be only 75% charged.
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington, NY, 11743-4714,
631-424-2121, www.zuiko.com
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----- Original Message -----
From: "Tim Hughes" <timhughes@xxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Thursday, November 04, 2004 10:15 PM
Subject: [OM] Re: Multiple Flash/Studio Flash
> If you look in the archives from some years back, I posted a lot of
> information comparing the T32 GN and stored energy to a number of other
> flashes (metz,sunpak,nissin). I corrected for areal coverage so the
> playing field is flat. I even posted a few sanity check measurements using
> flashmeter. As pointed out the Oly zoom adapter is inefficient (loses
> light in focusing) compared with published specs for other zoomheads.
> Beware the T20 is not a very conversion efficient flash since the angle of
> coverage is not for 24mm lens like T32. (I was caught once, I think it is
> only 35mm coverage?,check esif) A number of companies have base level 28mm
> coverage (metz) while some use 35mm to boost comparitive GN's. Few use
> 24mm like Oly on T32 and T45. Since I use 24mm a lot I like the T32,
> although I often add a diffuser which makes the AOC less critical. If you
> want the ultimate fresnel lens addon, the Metz one for the CT60 increase
> the GN to ~400ft ! The T45 is actually one of the m
> ost
> powerful on camera flashes when compared on equal area bassis. (Metz CT60
> is not "on camera" as battery pack/invertor is seperate.)
>
> Tim Hughes
>
>
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