----- Original Message -----
From: Gary L. Edwards <garyetx@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, January 14, 2003 1:20 PM
Subject: RE: [OM] Lenshood calculation
>
> -----Original Message-----
> From: owner-olympus@xxxxxxxxxxxxxxx
> [mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of John Cwiklinski
> Sent: Monday, January 13, 2003 4:17 PM
> To: olympus@xxxxxxxxxxxxxxx
> Subject: Re: [OM] Lenshood calculation
>
>
> Moose wrote:
>
> >>
> Film plane doesn't work. You need to know where the front node of
> the lens is relative to film plane or front of lens or rear of lens
> mount, etc. Then it would be simple geometry.
> <<
>
> And I would note: The design also differs depending on your choice of
> degree of hood performance.
>
> Gary Edwards
>
Does anyone remember the posting a few weeks back that described a foolproof
method for testing if a lens hood was suitable for a particular lens? I
printed the text out but I did not keep the address. If it can be found
again it might help Tom Trottier.
Michael.
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