WebThe Canon EF-S 18–55mm lens f/3.5–5.6 is a Canon -produced wide-angle to mid telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 28.8–88mm, and it is a standard kit lens on Canon's consumer APS-C DSLRs. WebThe Canon EF 35-70mm f/3.5-4.5 is an EF mount wide -to- normal zoom lens. It is one of the first lenses in the Canon EF series. It has the same zoom system and 9 lenses in 8 groups layout as the Canon New FD 35-70mm f/3.5-4.5 [1] although it is unclear whether the actual optical design is identical.

Canon EF 1200mm lens - Wikipedia

WebEF 200-400mm với EOS-1D C. EF 200–400mm f/4L IS USM Extender 1.4× [1] là ống kính zoom siêu tele ngàm EF được sản xuất bởi Canon. Đây là ống kính chuyên nghiệp thuộc dòng L. Đây là ống kính ngàm EF đầu tiên của Canon tích hợp ống nhân tiêu cự. Ngày 22-4-2014, Canon công bố họ đã ... WebThe Canon EF-S 17–55mm f /2.8 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount. ... makes the 17–55 very useful in low light compared to an unstabilized f /3.5–5.6 Canon EF-S 18–55mm lens, which is a frequent kit lens, and thus the 17–55 is much more suited for hand holding and ... bit-field type too small for number of bits

Canon EF 600mm lens - Wikipedia

The EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens. Mechanically, it is a bayonet-style mount, and all communication between camera … See more The EF mount replaces its predecessor, the FD mount. The standard autofocus lens mounting technology of the time used a motor in the camera body to drive the mechanics of the focus helicoid in the lens by using a transfer … See more Ultrasonic motor drive Ultrasonic motor (USM) lenses appeared with the introduction of the EF 300 mm f/2.8L USM lens in 1987. Canon was the first camera maker to successfully commercialise the USM technology. EF lenses equipped … See more The communication protocol between the camera and the lens is 8-data-bit, 1-stop-bit SPI (mode 3). The pins, from right to left on the lens, are: See more The "I", "II", "III" Roman numeral suffix after the focal length(s) indicates the generation number. While I is used in the table below, it is not used in official Canon model numbers; the original model lacks a Roman numeral and only the second and subsequent … See more Its large diameter and relatively short flange focal distance of 44.0 mm allows mechanical adaptation of EF camera bodies to many types of non-EF lenses. It is possible to … See more Canon EF lenses typically have a number of controls, switches and physical features, used by the photographer to control the lens. The types and number of the controls can … See more In 1987 Canon was the first to use USM (Ultra Sonic Motor) with the Canon EF 300mm f/2.8L USM. In 1989 Canon was the first to create a full frame f/1.0 AF (AutoFocus) lens and the only one until today with the Canon EF 50mm f/1.0L USM. See more WebThe Canon EF-S 17–85mm f /4–5.6 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount and image stabilization. [1] [2] [3] The EF-S designation means it can only be used on EOS cameras with an APS-C sensor released after 2003. das wasserstoffperoxid