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Canon EF 300mm lens

35 mm camera lens

Summary

35 mm camera lens

The EF 300mm lens refers to a family of telephoto prime lenses made by Canon, five of which have been sold to the general public and one of which was only made on special order. The lenses have an EF type mount which fits the Canon EOS line of cameras.

When used on a digital EOS body with a field of view compensation factor of 1.3x, such as the Canon EOS-1D Mark IV, it provides a narrow field of view, equivalent to a 390 mm lens mounted on a 35mm frame body. With a 1.6x body such as the Canon EOS 650D, it provides a narrower field of view, equivalent to a 480 mm lens mounted on a 35mm frame body.

This lens is most commonly used by sports and wildlife photographers, but is short enough to be use for extreme close-up portraits. Because of its rather high native magnification, it can be used for some macro type photography.

Technical information

The EF 300mm is a L series lens. This lens is constructed with a metal body and mount, and with plastic extremities and switches. Features of this lens are: a wide rubber focus ring that is dampened, a distance window, the ability to limit the focus range, and an image stabilizer (on the IS versions). The maximum aperture of 2.8 or 4 gives this lens the ability to create shallow depth of field effects, while the eight- or nine-blade diaphragm produces smooth background blur. The optical construction of this lens contains 15 lens elements, including two UD (Ultra low dispersion) lens elements for the f4 IS USM (for other configurations see chart). This lens uses an inner focusing system, powered by a ring type USM motor. The front of the lens does not rotate nor extend when focusing. This lens is compatible with the Canon Extender EF teleconverters.

Specifications

Attribute	2.8L USM	2.8L IS USM	2.8L IS II USM	4L USM	4L IS USM	Image	Key features	Full-frame compatible	Image stabilizer	Ring USM	L-series	Diffractive Optics	Macro	Technical data
[[Image:Canon-300mm-f28 MG 2036.jpg	400x200px]]	[[Image:Canon EF 300mm L IS I USM.jpg	400x200px]]	[[Image:Canon EF 300 f2.8.jpg	400x200px]]	[[Image:Canon EF 300 F4 L.JPG	400x200px]]	[[File:Canon EF 300mm f4L IS USM 3945.jpg	400x200px]]
[[Image:Yes check.svg	15px	Yes]] Yes
[[Image:X mark.svg	15px	No]] No	[[Image:Yes check.svg	15px	Yes]] Yes	[[Image:Yes check.svg	15px	Yes]] Yes	[[Image:X mark.svg	15px	No]] No	[[Image:Yes check.svg	15px	Yes]] Yes
[[Image:Yes check.svg	15px	Yes]] Yes
[[Image:Yes check.svg	15px	Yes]] Yes
[[Image:X mark.svg	15px	No]] No
[[Image:X mark.svg	15px	No]] No
2.8-32	4-32
8 groups / 10 elements	13 groups / 17 elements	12 groups / 16 elements	7 groups / 8 elements	11 groups / 15 elements
8	9	8
3 m	2.5 m	2 m	2.5 m	1.5 m
0.11×	0.13×	0.18×	0.13×	0.24×
6° 50'
4° 35'
8° 15'
2.855 kg	2.550 kg	2.400 kg	1.165 kg	1.190 kg
128 mm	90 mm
252 mm	248 mm	221 mm
48 mm drop-in	52 mm drop-in	77 mm
November 1987	July 1999	August 2010	December 1991	March 1997
[[File:X mark.svg	15px	No]] No	[[File:X mark.svg	15px	No]] No	[[File:X mark.svg	15px	No]] No	[[File:X mark.svg	15px	No]] No
$3,499	$4,879	$6,099	$1,199	$1,349

The 300mm f/1.8

In addition to the above lenses, Canon made an even faster lens, the EF PE 300mm 1.8, specifically for photo finishes in horse races. According to one racing photographer, Canon made only four of these lenses, making it even less common than the famously rare EF 1200mm lens. Not only is this lens exceptionally rare, very little information about it is available online; the company's online Canon Camera Museum does not list this lens.

References

[http://the-digital-picture.com/Reviews/Canon-EF-300mm-f-4.0-L-IS-USM-Lens-Review.aspx the-digital-picture.com]
"Canon Camera Museum".
[http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&fcategoryid=153&modelid=7316#ModelDetailAct Canon USA]
"EF LENS WORK III DESIGN SPECIFICATIONS & LENS MAPS".
[http://www.dpreview.com/news/1008/10082615canon300mm400mm.asp dpreview.com]
[http://www.usa.canon.com/cusa/about_canon?pageKeyCode=pressreldetail&docId=0901e024801e8289 usa.canon.com]
Rumors, Canon. (2021-04-08). "Canon officially discontinues a lot more EF lenses".
Rumors, Canon. "Recently Discontinued EF lenses".
Zhang, Michael. (April 27, 2017). "This is the Canon 300mm f/1.8 — Yes, Such a Monster Lens Exists". PetaPixel.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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