Canon EF 70–300mm lens

The EF 70–300mm lens is a telephoto zoom lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras.

Three Canon EF telephoto zoom lenses carry the 70–300mm designation. These are the EF 70–300mm f/4.5–5.6 DO IS USM, EF 70–300mm f/4–5.6L IS USM and the EF 70–300mm f/4–5.6 IS USM. All versions offer IS and USM and have nearly the same maximum aperture of 4/4.5 to 5.6 over their entire focal range. The optics of the Canon EF 70–300mm f/4–5.6 L USM lens include 19 elements in 14 groups, two of which are ultra-low dispersion (UD) glass.

EF 70–300mm f/4.5–5.6 DO IS USM

The EF 70–300mm f/4.5–5.6 DO IS USM lens

This lens makes use of Canon's Diffractive Optics rather than a traditional lens of wholly refractive design. This allows the lens to be more compact, albeit heavier and much more expensive than a lens of conventional design. The lens contains Image Stabilization and a ring USM, which allows full time manual focusing of the lens while using the camera in single shot mode. This lens offers good optical quality with the caveat that the diffractive element does not deal with strong incident light sources as well as conventional designs.^[1]

This lens is compatible with the Canon ET-65B lens hood.^[2]

EF 70–300mm f/4–5.6 IS USM

The EF 70–300mm f/4–5.6 IS USM lens with an optional filter attached.

This lens is of a conventional design and was introduced in 2005, to offer an increase in performance from the earlier 75-300mm lenses in the Canon EF lens lineup.^[3]^[4] Like the 70–300mm f/4.5–5.6 DO it contains an image stabilizer; however, for focusing it uses the lower quality micro-USM design, and therefore requires the focus motor to be disengaged before manual focusing. The optical performance of this lens is competitive to Canon's L series telephoto zoom lenses, such as the 70–200mm series of lenses. This is because it features an ultra-low dispersion glass element, something that is uncommon for a consumer grade lens, and is usually found only in Canon's L-series lenses. This lens is also notable for having only a slight decrease in performance as the focal length goes beyond 200 mm.^[5] That is an uncommon attribute of consumer grade zoom lenses and is not the case for the old 75–300mm lens.

This lens is compatible with the Canon ET-65B lens hood.^[2]

EF 70–300mm f/4–5.6L IS USM

The EF 70–300mm f/4–5.6 L IS USM lens

Introduced on 26 August 2010, this lens is designed to provide professional photographers the 70–300mm zoom range without sacrificing high image quality. The 70–300mm f/4–5.6L IS USM is the only L-series 70–300mm lens and is the only to feature weather sealing. The image stabilizer is rated for 4 stops and allows sharp pictures to be taken handheld at speeds as slow as 1/8 of a second. This lens has superb contrast that meets or exceeds other L-series telephoto zooms, but lacks in sharpness in the corners throughout most of its focal length range. The image quality at 300mm does not degrade, making it distinct from the other 70–300mm lenses. Barrel distortion is average for this class of lens, but vignetting is better than average. Because of its fast autofocus, useful range, excellent image stabilization, and high image quality, the 70–300mm f/4–5.6L has recently become popular among serious amateur and professional photographers. The 70–300mm f/4–5.6L includes a hood but not a tripod ring.

Specifications

Attribute	f/4.5–5.6 DO IS USM	f/4–5.6 IS USM	f/4–5.6L IS USM
Image stabilizer	Yes, 3rd generation
Environmental Sealing	No		Yes
Ring USM	Yes	No	Yes
Micro USM	No	Yes	No
L-series	No		Yes
Diffractive Optics	Yes	No
Ultra-low dispersion glass element	No	Yes
Macro	No
Maximum aperture	f/4.5–5.6	f/4–5.6
Minimum aperture	f/32–38, f/32–40 (1/3-stop increments)	f/32–45
Weight	720 g	630 g	1050 g
Max. Diameter x Length	82.4 x 99.9 mm	76.5 x 142.8 mm	89 x 143 mm
Filter diameter	58 mm		67 mm
Horizontal viewing angle	29°–6°50'
Vertical viewing angle	19°30'–4°35'
Diagonal viewing angle;	34°–8°15'
Groups/elements	12/18	10/15	14/19
# of diaphragm blades	6	8
Closest focusing distance	1.4 m	1.5 m	1.2 m
Maximum Magnification	.19x	.25x	.21x
Release date	January 2004	August 2005	October 2010
MSRP US$	$1,149.88	$549.00	$1,599.00

References

↑ "Canon EF 70–300mm f/4.5–5.6 USM DO IS — Full Format Review / Test Report" at photozone.de (accessed 5 October 2010)
1 2 Canon website's lens compatibility list for the ET-65B lens hood
↑ "Canon EF 70–300mm f/4–5.6 USM IS — Review / Test Report" at .photozone.de (accessed 5 October 2010)
↑ Canon EF 70–300mm f/4–5.6 IS USM Lens Review at the-digital-picture.com (accessed 5 October 2010)
↑ http://www.the-digital-picture.com/Reviews/Canon-EF-70-300mm-f-4-5.6-IS-USM-Lens-Review.aspx

External links

Wikimedia Commons has media related to Canon EF 70-300mm F4-5.6 IS USM.

Wikimedia Commons has media related to Canon EF 70-300mm F4-5.6L IS USM.

Wikimedia Commons has media related to Canon EF 70-300mm F4.5-5.6 DO IS USM.

Canon EF/EF-S/EF-M lenses

EF-S zoom	EF-S 10–18mm EF-S 10–22mm EF-S 15–85mm EF-S 17–55mm EF-S 17–85mm EF-S 18–55mm EF-S 18–135mm EF-S 18–200mm EF-S 55–250mm

Ultra-wide zoom	EF 11–24mm EF 16–35mm EF 17–40mm

Standard zoom	EF 24–70mm EF 24–105mm EF 28–135mm EF 28–300mm

Telephoto zoom	EF 70–200mm EF 70–300mm EF 75–300mm EF 100–400mm EF 200–400mm

Wide-angle prime	EF 14mm EF 20mm EF 24mm EF-S 24mm EF 28mm EF 35mm

Standard prime	EF 40mm EF 50mm

Telephoto prime	EF 85mm EF 100mm EF 135mm EF 200mm

Super telephoto prime	EF 300mm EF 400mm EF 500mm EF 600mm EF 800mm

Distorting lenses	EF 8–15mm Fisheye EF 135mm with Softfocus

Tilt-shift	TS-E 17mm TS-E 24mm TS-E 45mm TS-E 90mm

Macro	EF 50mm Compact Macro EF-S 60mm Macro MP-E 65mm 1–5x Macro EF 100mm Macro EF 180mm Macro

EF-M zoom	EF-M 11–22mm EF-M 15–45mm EF-M 18–55mm EF-M 55-200mm

EF-M prime	EF-M 22mm

Lens accessories	Extender EF

Discontinued zoom	EF 17–35mm EF 20–35mm EF 22–55mm EF 24–85mm EF 28–70mm EF 28–80mm EF 28–90mm EF 28–105mm EF 28–200mm EF 35–80mm EF 35–105mm EF 35–350mm EF 55–200mm EF 70–210mm EF 80–200mm EF 90–300mm EF 100–200mm EF 100–300mm

Discontinued prime	EF 15mm Fisheye EF 1200mm

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