Re: [Leica] Leitz 90mm f1.0 & 65mm f0.65

[Rob McElroy <idag@pce.net>]

Jem,

The lenses came from the same source but were different examples.  I outbid the same German guy on the 65mm.

Thanks for the info you copied and sent to the LUG.  It was the same info. the seller had for my lenses.  Hopefully someone with come forth with some
additional information.

If you remember which Viewfinder had an article or where you saw anything else on the Pickers or the Elcan, I would very much like to get a copy or be
pointed to a source where they exist.

Thanks,
Rob McElroy
Buffalo, NY


Jem Kime wrote:

> Rob,
> If this is the same pair of lenses I lost in an e-bay auction to a german
> bidder then here are the words that accompanied the pictures.
>
> I can send the photos if you wish but there are 13 of them and will take a
> while to download. Other than this I have no further information other than
> having seen the 90mm f1 in a photo or two in 'Viewfinder' or elsewhere.
>
> best regards,
> Jem
>
> -----Original Message-----
> From:   Rob McElroy [SMTP:idag@pce.net]
>
> Does anyone have or know where there is any published data on the Leitz
> 90mm f1.0 and 65mm f0.75 lenses made by Leitz Canada for the Picker X-Ray
> company.
>
> I just purchased both lenses (they haven't arrived yet) for use on a custom
> camera I built for making small circular daguerreotypes. Major amounts of
> light are needed for daguerreotypes.  Just think of Kodachrome 25 and add
> 10 stops more light.
>
> My guess is that the image circles on these lenses may be fairly small, but
> the Elcan version of the Leitz 90mm f1.0 has been shown mounted on an M3
> for the US Navy (see Lager-Lenses p. 232).
>
> Are the Elcan and Picker 90mm f1.0 lenses the same optical design?  Do they
> have the same size image circle and how big is it?  Are the lenses
> corrected only for a narrow portion of the visible spectrum?  Any published
> resolution or MTF data?
>
> Has anyone ever handled either of these Picker X-Ray lenses?  Both the 65mm
> and 90mm have a 4"-wide front lens surface.
>
> Thanks for any info. anyone might have.
>
> Regards,
> Rob McElroy
> Buffalo, NY