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  2. Progressive lens - Wikipedia

    en.wikipedia.org/wiki/Progressive_lens

    Right and left were identical variable power lenses with distance and reading power centers in the upper and lower part of the lens, respectively. The glazing was made to accommodate eye position changes from distance viewing to reading. The point of reading is about 14 mm below and 2 mm to the nasal side in comparison to distance viewing.

  3. Category:Lens manufacturers - Wikipedia

    en.wikipedia.org/wiki/Category:Lens_manufacturers

    This is for companies who exclusively or predominantly create optical lenses for still and film photography. Subcategories This category has the following 10 subcategories, out of 10 total.

  4. Category:Zeiss lenses - Wikipedia

    en.wikipedia.org/wiki/Category:Zeiss_lenses

    Pages in category "Zeiss lenses" The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes. * Carl Zeiss AG; 0–9.

  5. Carl Zeiss AG - Wikipedia

    en.wikipedia.org/wiki/Carl_Zeiss_AG

    First workshop of Carl Zeiss in the center of Jena, c. 1847 Carl Zeiss Jena (1910) One of the Stasi's cameras with the special SO-3.5.1 (5/17mm) lens developed by Carl Zeiss, a so-called "needle eye lens", for shooting through keyholes or holes down to 1 mm in diameter 2 historical lenses of Carl Zeiss, Nr. 145077 and Nr. 145078, Tessar 1:4,5 F=5,5cm DRP 142294 (produced before 1910) Carl ...

  6. Zeiss Biogon - Wikipedia

    en.wikipedia.org/wiki/Zeiss_Biogon

    The advent of the Biogon opened the way to more extreme wide-angle lenses. Bertele continued to develop his design, patenting an asymmetric wide-angle lens in 1952 that covered an astonishing 120° angle of view "and beyond, practically distortion free", by adding a strong negative meniscus front element to the Biogon design, showing influences from earlier fisheye lens designs, including the ...

  7. Contarex lenses - Wikipedia

    en.wikipedia.org/wiki/Contarex_Lenses

    These are all the first-party lenses for the Contarex system; all but one (the PA-Curtagon) were designed and manufactured by Carl Zeiss. [1] Noted Leica historian Erwin Puts obtained the Modulation Transfer Function curves for many of the lenses designed by Zeiss and published them on his website, noting "the special smoothness and depth of the Contarex lenses can be explained by these [MTF ...