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[OM] Re: Vivitar 550FD M/P/O discussion

Subject: [OM] Re: Vivitar 550FD M/P/O discussion
From: Tim Hughes <timhughes@xxxxxxxx>
Date: Wed, 5 Jan 2005 20:08:08 -0800 (PST)
Wayne,
            you probably can't see Mark's esif site because you have to have 
your browser settings set just right. Mark runs a direct access site off one of 
his own "servers" and likes to be able to control acces in case of people doing 
wholesale suckdown etc.  
Here is what esif says:
(T32)
Coverage angle: 53° vertical, 74° horizontal (covers picture area of 24mm lens).
Looks like Shipman may be wrong. 
 
If you use wides often the T32 and T45's are pretty nice especially for an on 
camera flash of that era. Most flashes at best do 28mm without adapters. One or 
two exceptions like the high power Contax, but Metz is typically only 28mm and 
Sunpaks are often 35mm. There is a very old thread comparing normalised GN's on 
a lot higher power flashes of that era in the archives. The T20 is nice and 
compact, but it is not nearly as efficient as the T32 in converting energy to 
light once you normalise output for energy stored.  Years ago I used to think 
the T20 was better than it is, because I misread the esif and thought it 
covered wider angle lens.
       Like many on this list, my main complaint is limited choices of fixed 
power settings and auto aperture settings. If I did not own Metz and Sunpak as 
well, I would probably make myself a set of graded diffusers to fill in the 
gaps in manual settings. The T32 ND diffusers are an alternative to improve 
range although may not give the steps you would like. 
 
Regards,
Tim Hughes




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