John Carlson is either a poor Pentax historian or

Started Sep 21, 2012 | Discussions thread
Harold Olivier
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Re: John Carlson is either a poor Pentax historian or
In reply to loock, Sep 21, 2012

loock wrote:

Petax adopted K-mount in 1975, but used m42 from 1957, and built SLRs from 1952 (m37), first 35mm format SLR made in Japan.

And the first instant-return reflex mirror in an SLR, among many other firsts. But since JC didn't even know the date of the introduction of the K mount it might be too much to expect him to know of Pentax's earlier history, and of the fact that the m42 screw-mount lenses also work on all Pentax DSLR, although of course they require an adapter.

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