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The DXOMARK Lens Score provides ratings for camera lenses, as tested using its proprietary tool-set in combination with various camera models. [8] [10] [17] As with the DxOMark Sensor Score, the DXOMARK Lens Score is an aggregation of five separate sub-scores; namely: sharpness, distortion, vignetting, transmission, and chromatic aberration.
Some camera makers design lenses but outsource manufacture. Some lens makers have cameras made to sell under their own brand name. A few companies are only in the lens business. Some camera companies make no lenses, but usually at least sell a lens from some lens maker with their cameras as part of a package.
DxO Analyzer was a suite of software tools [33] and equipment to test sensors, lenses, and standalone cameras, as well as mobile devices with cameras. [34] [35] Originally introduced by DxO Labs, DxO Analyzer is now a product of DxOMark Image Labs.
The DA* lenses are designed for use with Pentax digital SLR cameras. DA* lenses have higher quality optics and feature a higher level of weather sealing (AW) than most DA lenses (WR). The DA* lenses are more expensive and generally feature improved light transmission and larger aperture openings for better low light performance.
The Micro Four Thirds system (MFT) of still and video cameras and lenses was released by Olympus and Panasonic in 2008; lenses built for MFT use a flange focal distance of 19.25 mm, covering an image sensor with dimensions 17.3 × 13.0 mm (21.6 mm diagonal).
Unlike many Japanese made cameras, Miranda did not make their own lenses and had to rely on other manufacturers to supply them. Miranda produced a line of quality 35mm still cameras; a range of over 30 models between first prototypes in 1953 through to the last production model in 1976. [2] Many had advanced or sophisticated features for their day.