Olympus-OM
[Top] [All Lists]

RE: [OM] Magnification factors

Subject: RE: [OM] Magnification factors
From: "Robert Gries" <rgg@xxxxxxxxxxx>
Date: Mon, 12 Aug 2002 14:07:58 -0500
Thanks Paul!  Now I only have to remember to set the switch
correctly....

Also, I thought that an OM-1n would automatically be on X, or is that
just if one uses the hot shoe or TTL connector?


Maybe I shouldn't have sold that TTL Auto-connector 4.....

<snip>

Yes. Rearranging the 1st equation, you get.

marked f# = (Effective f#) / (m+1)

The effective f# is what the film will experience.
The marked f# is the lens marking.
Diffraction goes by the  effective f#, so it's best to not go past a
value of f/16.

Paul


< This message was delivered via the Olympus Mailing List >
< For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
< Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >


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