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Leica/Rokkor??
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PostPosted: Wed Oct 26, 2011 1:15 pm    Post subject: Leica/Rokkor?? Reply with quote

In 1969 Leica M changed the design of the Summicron M 2/50 from 7 to 6 elements in 5 groups.

In 1973, in times of colaboration between Minolta/Leica, Minolta changed the 1,7/55 normal lens to 1,7/50. Without changed the schame 6/5.

In other hand, as I have read and heard sometimes, the MD 2/45 should have the antecedent in the 2/40 Rokkor M.

Anybody knows if the Minolta/Leica lenses were only the 16 mm and the zooms, or the normals were included into that colaboration too?

Rino.


PostPosted: Wed Oct 26, 2011 1:28 pm    Post subject: Reply with quote

Rumors have it the MD W. Rokkor 24mm f2.8 is one such


PostPosted: Wed Oct 26, 2011 2:56 pm    Post subject: Reply with quote

Telyt-R 500mm/f8 and RF Rokkor 800mm/f8 with Leica-R mount are another Minolta made ones.


PostPosted: Wed Oct 26, 2011 3:39 pm    Post subject: Reply with quote

According to an article of ASAHI CAMERA published at 1974, Feb,
the both M-Rokkor 40/2 and 90/4 were designed by Leitz but
M-Rokkor PF 40/2 were made by Minolta and Leica in their own
countries and 90/4 were only made in Germany.

Btw, M-Rokkor 28/2.8 were designed and made by Minolta, though
the both Rokkor 28mm/2.8 and Elmarit 28mm/2.8 had almost the same
performance.


PostPosted: Wed Oct 26, 2011 4:16 pm    Post subject: Reply with quote

Thanks Koji. Very good date.

Perhaps both 2/40 and 45 should be emparented with the 2/45 used in the Minolta AL of 1961. Shocked

Rino


PostPosted: Wed Oct 26, 2011 6:11 pm    Post subject: Reply with quote

Nesster wrote:
Rumors have it the MD W. Rokkor 24mm f2.8 is one such

In fact ,if my information is corect the MC 24/2.8 was licensed to Leica .


PostPosted: Thu Oct 27, 2011 10:12 am    Post subject: Reply with quote

There are rumours that the MC version of the 50mm f/2.0 is based on a Leitz design. Minolta sold Leitz Photar 12,5mm f/1.9 and 25mm f/2.5 lenses before they had their own Bellows-Micro 12,5mm f/2.0 and 25mm f/2.5, which may be derived from the Photars. And the Leitz Telyt-S 800mm f/6.3 was available in Minolta mount, but this one is extremely rare due to its excessive price tag.