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The Carl Zeiss Planar 50mm f /0.7 is one of the largest relative aperture lenses in the history of photography. [1] The lens was designed and made specifically for the NASA Apollo lunar program to capture the far side of the Moon in 1966. [2] [3] [better source needed] [4]
They performed very well as normal and medium-long focus lenses for small and medium format cameras. One of the most notable Planar lenses is the high-speed f / 2.0/110 mm lens for the 2000- and 200-series medium format Hasselblad cameras with a similar version available for the Rolleiflex 6000 series cameras.
Lens speed is the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger than average maximum aperture (that is, a smaller minimum f-number) is called a "fast lens" because it can achieve the same exposure as an average lens with a faster shutter speed .
The Contaflex series is a family of 35mm Single-lens reflex cameras (SLR) equipped with a leaf shutter, produced by Zeiss Ikon in the 1950s and 1960s. The name was first used by Zeiss Ikon in 1935 for a 35mm Twin-lens reflex camera, the Contaflex TLR; for the earlier TLR, the -flex suffix referred to the integral reflex mirror for the viewfinder.
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 ...
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