Olympus-OM
[Top] [All Lists]

Re: [OM] OM to 4/3 adapter thickness....

Subject: Re: [OM] OM to 4/3 adapter thickness....
From: "Jeff Keller" <om-list@xxxxxxxxxxx>
Date: Sat, 6 Dec 2008 08:54:23 -0800
The generic Nikon to EOS adapters can cause big problems.
http://www.16-9.net/lens_tests/15mm_2/sigma1224vnikon15f.html

If the thickness is off it should only affect the lenses having floating
lens elements. If all of the lens elements move together as a single group,
the distance markings would be off but the lens would work fine otherwise.
So for OM lenses: many of the f2 lenses, the big white telephotos, probably
the zooms,  and some of the nice third party telephotos such as the Tamron
400/4 may suffer.

The MF-1 and MA-1 looked like they were within measurement tolerances of
each other according to the article Piers posted a link to.

-jeff 

-----Original Message-----
From: Richard Man [mailto:richard-lists@xxxxxxxxxxxxxx] 
Sent: Saturday, December 06, 2008 1:00 AM
To: Olympus Camera Discussion
Subject: [OM] OM to 4/3 adapter thickness....

Wait a minute, if MF-1 and MA-1 differ in thickness, doesn't that 
mean one of them is not optimal? I have a generic adapter, and it 
looks to be slightly off (backfocus), could that be the reason?





-- 
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/

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