Roger Wesson <roger@xxxxxxxxxxxxxxxxxxxxxxx> moved upon the face of the 'Net
and spake thusly:
> Morning all,
>
> I bought a Vivitar 400mm f/5.6 the other weekend. I christened it 'The
> Beast', as it is colossal and very heavy. Seeems OK from an optics
> point of view (I've had some nice moon shots from it), but as I want to
> take it to Zambia for the solar eclipse, I'd rather have something
> lighter. I've seen 500mm mirror lenses with T mounts and T2 mounts
> advertised quite cheaply, and I was wondering if there is a difference
> between T & T2, or are these are the same mount? I have an OM to T2
T and T2 have the same thread.
T mount is just a 42x0.75mm thread, with no interconnections. I think
the only difference between T and T2 is that a T2 mount can be rotated
to make the "top" of the lens point up when it's screwed all the way in.
For the straight dope, see Bob Monaghan's lens converter FAQ:
http://www.smu.edu/~rmonagha/bronmounts.html
--cjb
--
It's boring being a program when your only job is inserting a random .sig.
Muggins thinks I've put his .sig here, won't he be surprised...
< 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 >
|