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2. Template:Canon RF-lenses - Wikipedia

   en.wikipedia.org/wiki/Template:Canon_RF-lenses

   mum aperture for zoom lens from – till mini mum focus distance [m] ... 100 500 77 207.6 93.8 1530 54 32 0.9 0.33 Canon RF 100-400mm F5.6-8 IS USM: 2021-10-01

3. Canon RF lens mount - Wikipedia

   en.wikipedia.org/wiki/Canon_RF_lens_mount

   Canon full-frame cameras have used the EF lens mount since 1987. In comparison with that mount, the RF mount's inner diameter is the same at 54 mm. [1] The RF mount's flange focal distance at 20 mm is much shorter than that of the Canon EF and EF-S mounts at 44 mm.

4. Canon EF 500mm lens - Wikipedia

   en.wikipedia.org/wiki/Canon_EF_500mm_lens

   A 9 bladed maximum aperture of f / 4.5, gives this lens the ability to create depth of field effects. The optical construction of this lens contains 8 lens elements, including one fluorite lens element, and one UD (Ultra low Dispersion) lens element. This lens uses an inner focusing system, powered by a ring type USM motor. The front of the ...

5. List of Canon products - Wikipedia

   en.wikipedia.org/wiki/List_of_Canon_products

   Canon RF 100-300mm F2.8 L IS USM: 2023-04-20 5.5 stage stabilizer: 100 300 112 323.4 128 2590 22 1.8 0.16 Canon RF 100-500mm F4.5-7.1 L IS USM: 2020-09-01 4 stage stabilizer: 100 500 77 207.6 93.8 1530 54 32 0.9 0.33 Canon RF 100-400mm F5.6-8 IS USM: 2021-10-01 5.5 stage stabilizer: 100 400 67 164.7 79.5 635 45 32 0.88 0.41 Canon RF 100mm F2.8L ...

6. Lenses for SLR and DSLR cameras - Wikipedia

   en.wikipedia.org/wiki/Lenses_for_SLR_and_DSLR...

   For example, a 100 mm to 400 mm lens may have a maximum aperture of f/4.0 at the 100 mm end but will diminish to only f/5.6 at the 400 mm end of the zoom range. Zoom lenses with constant maximum apertures (such as f/2.8 for a 24–70mm lens) are usually reserved for lenses with higher build quality and are thus more expensive than those with ...

7. Flange focal distance - Wikipedia

   en.wikipedia.org/wiki/Flange_focal_distance

   Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...