I had a Spiratone 400mm and it was a camera lens and not a spotting scope
format. I think most of their lenses used the t-adapter. /jmac
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx]On
Behalf Of Chuck Norcutt
Sent: Wednesday, June 21, 2006 2:20 PM
To: olympus@xxxxxxxxxx
Subject: [OM] Re: 500/5.6 Rubinar / MTO Catadioptric lens
I found this a bit confusing. I well remember Spiratone and bought a
fair number of things from them in the late 60's and early 70's. I also
remember the Russian MTO and also the stories that the Spiratone 500
mirror lens was, in fact, an MTO lens.
What confuses me is your comment about adjusting the mirror to move the
back focus out to make it suitable for an SLR. The implication is that
the MTO is a spotting scope rather than a camera lens. Maybe you're
right but I remember the MTO and Spiratone 500's as T-mount lenses and
thus designed for SLR use from the get-go.
OK, all you oldies out there (most of you except Ali), which of us is
correct?
Chuck Norcutt
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