[photo-3d] Re: Verascope F40 Lenses

["Ray Moxom" <raymoxom@xxxxxxxxxx>]

Bob Howard wrote:
> I want to thank Ray for posting the .pdf files on stereo cameras,
> including thr Verascope F40, Busch Verascope.
> One thing that has puzzeled me is where the Australians got the idea
> that the camera had triplet "Cooke" lens design. This included info on
> replacing the lenses with those from an Olympus early point and shoot
> camera.
>
> The 15th edition of Cox Photographic Optics 1966, shows the SOM
> Berthoit FLOR f/3.5 as a Tessar design, i.e three element with rear
> lens a compound pair. FLOR was also used for an f/4.5 Ross
> Express type (last element triple compound.)
> I have always had the sharpness associated with a Tessar with my
> Verascope once I applied black matte paint to the inside.

Well Bob, perhaps the Australians got it wrong. We will stand corrected,
particularly when the information comes from your knowledgable self. I will
bring it up with Peter Docker, the author of the article, and tell him that
a recognised expert tells us that the Berthoit FLOR's are Tessar type
lenses.

What do list members think about the first year of production of the
Verascope F40? 1942!! This was at least five years before the first
production Realist.

Ray Moxom





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