Canon EF 70–200mm lens: Difference between revisions
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The major advantage to this extra "reach" would be the utilizing of the full sensor space for a cropped image rather than having to crop afterwards, thus utilizing parts of the sensor that would have otherwise been wasted. The major disadvantage would be the lack of change in perspective, since the focal length has not actually changed it will be like shooting with the field of view of a 112-320mm lens on a full frame sensor while having the perspective of 70-200mm lens. The resulting image will appear to have a less pleasing background blur and unlike using a actual 112-320mm lens on a full frame sensor. |
The major advantage to this extra "reach" would be the utilizing of the full sensor space for a cropped image rather than having to crop afterwards, thus utilizing parts of the sensor that would have otherwise been wasted. The major disadvantage would be the lack of change in perspective, since the focal length has not actually changed it will be like shooting with the field of view of a 112-320mm lens on a full frame sensor while having the perspective of 70-200mm lens. The resulting image will appear to have a less pleasing background blur and unlike using a actual 112-320mm lens on a full frame sensor. |
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Canon full frame cameras include: [[Canon EOS 5D Mark II|EOS 5D Mark II]] and [[Canon EOS 1Ds Mark III|EOS 1Ds Mark III]]. Canon APS-C cameras include: [[Canon EOS 550D|EOS 550D]], [[Canon EOS |
Canon full frame cameras include: [[Canon EOS 5D Mark II|EOS 5D Mark II]] and [[Canon EOS 1Ds Mark III|EOS 1Ds Mark III]]. Canon APS-C cameras include: [[Canon EOS 550D|EOS 550D]], [[Canon EOS 60D|EOS 60D]] and [[Canon EOS 7D|EOS 7D]]. |
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==Switches== |
==Switches== |
Revision as of 19:31, 26 November 2010
The EF 70-200mm lens is a telephoto zoom lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras.
The lens comes in five different versions, all of which have fixed maximum aperture at all focal lengths and are L-series lenses.
The f/4 non-IS version, the cheapest L-series lens that Canon makes, is popular among weight-sensitive landscape photographers and hobbyists who want L lens quality without spending thousands of dollars. The f/2.8 versions are popular among event photographers and photo-journalists, some portrait photographers also prefer this lens. The IS version lenses use circular 8-bladed diaphragms which maintain a nearly circular aperture when stopped down by up to two stops. The f/2.8 and f/4.0 image-stabilized versions also feature weather sealing (resistant against dust and water) when used with a weather sealed camera to match such as the 5D mark II; weather sealed Canon products are not completely sealed from the environment, they are merely more resistant than non-sealed versions. These lenses are compatible with the Canon Extender EF teleconverters.
Crop factor
When used with a Canon APS-C (1.6x crop) DSLR camera or APS-H (1.3x crop), the field of view of this lens is equivalent to a 112-320mm or 91-260mm on full frame camera. This is due to the crop factor inherent with APS-C or APS-H (crop) sensor digital SLR cameras.
An example would be taking an image of a rock using two cameras with the same lens. The first camera a 18mp full frame and the second a 18mp APS-C, both shooting the same composition in a stationary position. The first image will be more "wide" while the second image will be more "magnified". After bringing the results into an image editing program and enlarging the first image so that the rock is the same size in both images, one will see that the enlarged image is approximately 160% (1.6x) of the original.
The major advantage to this extra "reach" would be the utilizing of the full sensor space for a cropped image rather than having to crop afterwards, thus utilizing parts of the sensor that would have otherwise been wasted. The major disadvantage would be the lack of change in perspective, since the focal length has not actually changed it will be like shooting with the field of view of a 112-320mm lens on a full frame sensor while having the perspective of 70-200mm lens. The resulting image will appear to have a less pleasing background blur and unlike using a actual 112-320mm lens on a full frame sensor.
Canon full frame cameras include: EOS 5D Mark II and EOS 1Ds Mark III. Canon APS-C cameras include: EOS 550D, EOS 60D and EOS 7D.
Switches
The most frequently pointed-out problem with this lens is the placement of the IS and AF buttons, that makes them prone to accidental flipping during hand-held shooting. Some photographers solve this simply by covering the buttons with a piece of gaffer tape. In recognition of this issue, the most recent of these lenses (the f/4L IS USM model and recent f/2.8L IS USM lenses) uses switches designed to reduce the incidence of accidental switch activation [1].
Specifications
Attribute | f/2.8L IS USM II | f/2.8L IS USM | f/2.8L USM | f/4L IS USM | f/4L USM |
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Image | |||||
Image stabilizer | Yes; 3rd generation (4 stops) | Yes; 2nd generation (3 stops) | No | Yes; 3rd generation (4 stops) | No |
Environmental Sealing | Yes | No | Yes | No | |
Ultrasonic Motor | Yes | ||||
L-series | Yes | ||||
Diffractive Optics | No | ||||
Macro | No | ||||
Maximum aperture | f/2.8 | f/4 | |||
Minimum aperture | f/32 | ||||
Weight | 1,490 g (3.28 lb) | 1,470 g (3.24 lb) | 1,310 g (2.89 lb) | 760 g (1.68 lb) | 705 g (1.554 lb) |
Maximum diameter | 89 mm (3.5 in) | 86 mm (3.4 in) | 85 mm (3.3 in) | 76 mm (3.0 in) | |
Length | 197 mm (7.8 in) | 197 mm (7.8 in) | 194 mm (7.6 in) | 172 mm (6.8 in) | |
Filter diameter | 77 mm | 67 mm | |||
Lens hood | Tulip-shaped (ET-86) | Cylindrical (ET-74) | |||
Horizontal viewing angle | 29° – 10° | ||||
Vertical viewing angle | 19°30′ – 7° | ||||
Diagonal viewing angle | 34° – 12° | ||||
Groups/elements | 19/23 | 18/23 | 15/18 | 15/20 | 13/16 |
# of diaphragm blades | 8 | ||||
Closest focusing distance | 1.2 m (3.9 ft) | 1.4 m (4.6 ft) | 1.5 m (4.9 ft) | 1.2 m (3.9 ft) | |
Release date | April 2010 | September 2001 | March 1995 | November 2006 | September 1999 |
MSRP $ | $2,499.00 | $1,999.00 | $1,349.00 | $1,249.00 | $640.00 |
Gallery
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The f/2.8L lens with lens hood
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The f/2.8L lens
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The f/4L lens without lens hood
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The f/4L lens on a Canon Digital Rebel
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Additional pins on the 70-200mm f/4 L EF mount
See also
- Canon lenses
- Canon EF 16-35mm lens, has the same maximum aperture of 2.8. Serves as a ultra wide-angle to complement the 70-200mm. This combination is commonly used by Photojournalists.
- Canon EF 24-70mm lens, has the same maximum aperture of 2.8. Serves as a general-purpose lens to complement the 70-200mm. This Combination is commonly used by wedding photographers.
- Third party lenses