Olympus-OM
[Top] [All Lists]

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

Subject: [OM] Re: Vivitar 550FD M/P/O discussion
From: Wayne Harridge <wayneharridge@xxxxxxxxxxxxxxx>
Date: Thu, 06 Jan 2005 15:40:25 +1100




> Tim Hughes <timhughes@xxxxxxxx> wrote:
> 
> Here is what esif says:
> (T32)
> Coverage angle: 53° vertical, 74° horizontal (covers picture area of 
> 24mm lens).
> Looks like Shipman may be wrong. 
>  

The light output obviously doesn't just stop once you exceed those angles, is 
there a 
standard criteria (e.g. -1 stop) for intensity at the extremities vs. on-axis ?

...Wayne


Wayne Harridge

http://lrh.structuregraphs.com

==============================================
List usage info:     http://www.zuikoholic.com
List nannies:        olympusadmin@xxxxxxxxxx
==============================================

<Prev in Thread] Current Thread [Next in Thread>
Sponsored by Tako
Impressum | Datenschutz