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  2. List of Minolta A-mount lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_Minolta_A-mount_lenses

    7-digit serial number; no CLR front filter; tripod knob to the right; without "High Speed" gearing and sticker and without focus-stop buttons; optically based on an SR-mount Minolta MD Apo Tele Rokkor 300mm f / 2.8 prototype; white finish Minolta AF Apo Tele 300mm f / 2.8 G (later revision) 2563-100, 2563-636: 25631 Prime 35mm 5-pin

  3. List of Leica lenses - Wikipedia

    en.wikipedia.org/wiki/List_of_Leica_lenses

    Many Leica M lenses went through several revisions through the years. Leica R lenses. Leica 15 mm f /3.5 Super-Elmar-R – 1980 (Carl Zeiss design) Leica 15 mm f /2.8 Super-Elmarit-R ASPH – 2001; Leica 16 mm f /2.8 Fisheye-Elmarit-R – 1970 (Minolta design and glass production) Ernst Leitz Canada Elmarit R19/2.8. Leica 19 mm f /2.8 Elmarit-R ...

  4. List of Pentax products - Wikipedia

    en.wikipedia.org/wiki/List_of_Pentax_products

    A sixth lens and an adapter were announced in September, 2012. Pentax 01 Standard Prime (2011) — 47 mm equivalent; Pentax 02 Standard Zoom (2011) — 28–80 mm equivalent; Pentax 03 Fisheye (2011) — 17.5 mm equivalent; Pentax 04 Toy Lens Wide (2011) — 35 mm equivalent; Pentax 05 Toy Lens Telephoto (2011) — 100 mm equivalent

  5. Leica CL - Wikipedia

    en.wikipedia.org/wiki/Leica_CL

    121 mm × 76 mm × 32 mm (4.8 in × 3.0 in × 1.3 in) Weight. 365 g (12.9 oz) The Leica CL is a 35mm compact rangefinder camera with interchangeable lenses in the Leica M-mount. It was developed in collaboration with Minolta who manufactured it. It first appeared in April 1973 and was released in the Japanese market in November 1973 as the ...

  6. Phoropter - Wikipedia

    en.wikipedia.org/wiki/Phoropter

    It included a Stevens Phorometer for measuring phorias, and a disc of auxiliary spherical lenses on the back, giving it a range of -12.00 to +12.00. To extend the range, there were clips on the front of each eye hole for the insertion of hand held sphere or cylinder trial lenses, with a mechanism to rotate the axis with the thumb.

  7. Helios (lens brand) - Wikipedia

    en.wikipedia.org/wiki/Helios_(lens_brand)

    In 1972, the director of KMZ issued an order to increase the production of Helios-44-2 lenses in Valdai. The lens received a slightly modified lens block, the rear set of lenses was no longer twisted by the block and the lenses simply poured. The serial number was transferred to the lens body. In this form, the lens was assembled until the ...

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