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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]

  3. Macro photography - Wikipedia

    en.wikipedia.org/wiki/Macro_photography

    Macro photograph of a common yellow dung fly ( Scathophaga stercoraria) made using a lens at its maximum 1:1 reproduction ratio, and an 18×24mm image sensor, the on-screen display of the photograph results in a greater than life-size image. Headshot of a dragonfly taken with a 100 mm macro lens coupled with a 50 mm lens in reverse at the end.

  4. Canon MP-E 65mm f/2.8 1–5x Macro - Wikipedia

    en.wikipedia.org/wiki/Canon_MP-E_65mm_f/2.8_1...

    The lens at 2x magnification, mounted on its tripod collar. The MP-E65mm f/2.8 1-5x Macro Photo is a photographic lens that was released in September 1999 and was discontinued in 2023. It was manufactured by Canon for use on the EOS photographic system. It is a manual focus lens for the EF mount and is specifically designed for macro ...

  5. Tilt–shift photography - Wikipedia

    en.wikipedia.org/wiki/Tilt–shift_photography

    Canon currently offers five lenses with tilt and shift functions: the TS-E 17 mm f / 4, the TS-E 24 mm f / 3.5L II, the TS-E 50mm f/2.8L MACRO, the TS-E 90 mm f / 2.8L MACRO, and the TS-E 135 mm f/4L MACRO. The lenses are supplied with the tilt and shift movements at right angles to each other; they can be modified so that the movements operate ...

  6. Canon TS-E 135mm lens - Wikipedia

    en.wikipedia.org/wiki/Canon_TS-E_135mm_lens

    TS-E 135 mm f / 4L MACRO; Maker: Canon: Technical data; Type: Tilt-shift lens: Focal length: 135 mm: Crop factor: 1.0: Aperture (max/min) f / 4 – f / 45: Close focus distance: 0.49 m (19 in) Max. magnification: 0.5×, 0.77× with Extension Tube EF 25 II: Diaphragm blades: 9: Construction: 11 elements in 7 groups: Features; Ultrasonic motor No ...

  7. Canon EF-S 60mm f/2.8 Macro USM lens - Wikipedia

    en.wikipedia.org/.../2.8_Macro_USM_lens

    EF-S 60mm Macro USM; Maker: Canon: Technical data; Type: Prime: Focus drive: Ultrasonic motor: Focal length: 60mm: Crop factor: APS-C: Aperture (max/min) f / 2.8 – f / 32: Close focus distance: 0.20 m (7.9 in) Max. magnification: 1:1: Diaphragm blades: 7: Construction: 12 elements in 8 groups: Features; Short back focus Yes: Lens-based ...

  8. Tamron SP AF 90mm f/2.8 Di 1:1 Macro - Wikipedia

    en.wikipedia.org/.../2.8_Di_1:1_Macro

    The SP AF 90mm f/2.8 Di 1:1 Macro lens is a macro lens produced by Tamron. It comes in the Canon EF-mount, Nikon F-mount, Pentax K-mount, and Sony A-mount. The lens was released in 1997. It received the European "Lens of the Year: 1997-1998" award. [1] It was mechanically and cosmetically upgraded in February 2000. [1]

  9. DxO ViewPoint - Wikipedia

    en.wikipedia.org/wiki/DxO_ViewPoint

    DxO ViewPoint is image geometry and lens defect correction software developed by DxO. It is designed to automatically straighten distorted perspectives caused by the lens used and the position of the photographer.

  10. Canon EF 180mm f/3.5L Macro USM lens - Wikipedia

    en.wikipedia.org/.../3.5L_Macro_USM_lens

    Discontinuation. 2021 [2] Retail info. MSRP. $1200 USD. The Canon EF 180/3.5L Macro USM lens is the longest macro lens made by Canon in the EF mount, and is one of Canon's L series range of professional camera lenses. The lens is compatible with the Canon Extender EF teleconverters. Canon discontinued manufacture of the lens in 2021.

  11. Distortion (optics) - Wikipedia

    en.wikipedia.org/wiki/Distortion_(optics)

    The Micro Four Thirds system cameras and lenses perform automatic distortion correction using correction parameters that are stored in each lens's firmware, and are applied automatically by the camera and raw converter software. The optics of most of these lenses feature substantially more distortion than their counterparts in systems that do ...