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Canon EF 100-400mm f/4.5-5.6L IS USM

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EF 100-400mm f/4.5-5.6L IS USM
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The light-gathering device of a camera, typically containing a group of compound lenses. Lenses come in different lengths, with very long lens used for long-distance photography.
camera lenses
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Included since: 01 Nov 2006
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Info modified on: 05 Nov 2017 17:27:47
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Long product name Canon EF 100-400mm f/4.5-5.6L IS USM :
The short editorial description of Canon EF 100-400mm f/4.5-5.6L IS USM

EF 100-400mm f/4.5-5.6L IS USM

Canon EF 100-400mm f/4.5-5.6L IS USM:
The official marketing text of Canon EF 100-400mm f/4.5-5.6L IS USM as supplied by the manufacturer
This lens is an EF100-400mm 4.5-5.6 L IS USM.


-Lens construction: 17 elements in 14 groups.
-Diagonal angle of view: 24°-6°-10°.
-Focus adjustment: Rear focusing system with USM.
-Closest focusing distance: 1.8m / 6ft.
-Zoom system: Linear extension type.
-Filter size: 77mm.

The Image Stabilizer has two modes and it is compatible with Extenders 1.4x II and 2x II

L-series super telephoto zoom lens equipped with an Image Stabilizer. The fluorite and Super UD-glass elements largely eliminate secondary spectrum. The floating system also ensures high picture quality at all focal lengths. The Image stabilizer has two modes and it is compatible with Extenders 1.4x and 2x.
Short summary description Canon EF 100-400mm f/4.5-5.6L IS USM:
This short summary of the Canon EF 100-400mm f/4.5-5.6L IS USM data-sheet is auto-generated and uses the product title and the first six key specs.
Canon EF 100-400mm f/4.5-5.6L IS USM, 17/14, 70.9" (1.8 m), 3.94 - 15.7" (100 - 400 mm), 6.17°, 24°, Canon
Long summary description Canon EF 100-400mm f/4.5-5.6L IS USM :

Canon EF 100-400mm f/4.5-5.6L IS USM. Lens structure (elements/groups): 17/14, Closest focusing distance: 70.9" (1.8 m), Focal length range (f-f): 3.94 - 15.7" (100 - 400 mm). Camera brands compatibility: Canon, AF actuator: USM. Diameter: 3.62" (9.2 cm), Filter size: 3.03" (7.7 cm), Length: 7.44" (18.9 cm). Magnification: 0.2x

This is an auto-generated long summary of Canon EF 100-400mm f/4.5-5.6L IS USM based on the first three specs of the first five spec groups.

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Lens system
Lens structure (elements/groups) *
The way in which a camera lens is constructed.
Minimum aperture number *
The minimum size of the hole through which light enters a camera.
Closest focusing distance *
70.9" (1.8 m)
Maximum aperture number *
Image stabilizer *
This camera function compensates for slight shaking movements caused by an unstable position and ensures smooth footage even in suboptimal conditions.
Focal length range (f-f)
Measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus. A system with a shorter focal length has greater optical power than one with a long focal length; that is, it bends the rays more strongly, bringing them to a focus in a shorter distance.For an optical system in air, the effective focal length (f and f′) gives the distance from the front and rear principal planes (H and H′) to the corresponding focal points (F and F′).
3.94 - 15.7" (100 - 400 mm)
Number of diaphragm blades
Diagonal angle of view (min)
Diagonal angle of view (max)
Camera brands compatibility *
The brands of camera that can be used with this product.
Auto focus
Device focusing a camera or other piece of equipment automatically.
Manual focus
AF actuator
Weight & dimensions
Diameter *
Distance from one side of a body (circle or sphere) to the other side, measured by a straight line passing through the centre of the body.
3.62" (9.2 cm)
Filter size *
A filter is a screen, plate, or layer of a substance which absorbs light or other radiation or selectively absorbs some of its components e.g. a UV filter to reduce UV light. Filters come in various sizes.
3.03" (7.7 cm)
Length *
The measurement or extent of something from end to end.
7.44" (18.9 cm)
Weight *
Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
3.04 lbs (1.38 kg)
Other features
The degree to which something is or can be magnified (made to appear larger than it is).
Source Testseek summary Average rating
Testseek has collected 11 expert reviews for Canon EF 100-400mm f/4.5-5.6L IS USM and the average expert rating is 85 of 100. The average score reflects the expert community’s view on this product. Click below and use Testseek to see all ratings, product awards and conclusions.
Source Review comments Score
Canon EF 100-400mm f4.5-5.6L IS USM features two IS (Image Stabilization) modes, allowing steady far-off shots as well as clear close-up portraits with a blurred background. The use of Fluorite and Super UD-glass elements largely eliminates effects fro...
Bottom line If you're in the market for a telephoto zoom with a pro-quality Canon L-Series lens for your EOS digital SLR, the Canon EF 100-400mm f4.5-5.6L IS USM makes an excellent choice. It's built to pro standards and delivers the performance to match. It's a b...
The Canon 100-400mm ƒ/4.5-5.6 IS USM telephoto zoom lens was released in September 1998. The lens uses an older ''push-pull'' zoom design that extends the lens from its length of 189mm (7.4'') to almost 260mm (10.2'') when set to its most telephoto settin...
Bottom line It's not surprising to hear people swear by this lens: in 1998, there wouldn't have been much else in the price range that would have been as sharp. The push-pull design doesn't appeal to everyone for a variety of reasons, but it's hard to deny the lens'...
The Canon EF 100-400mm f/4.5-5.6 USM L IS is a fairly old design dating back to the late 90s. I still remember those days when I used it on an EOS 1n ... with film if you remember those good 'ol days. Well, time goes by but it's still here - despite a...
Bottom line The Canon EF 100-400mm f/4.5-5.6 USM L IS is almost a boring lens but in a positive sense. It shows no extreme weaknesses nor strengths. You will find sharper lenses - primes that is - but it is very sharp for a zoom lens, especially considering its 4...
The Canon EF 100-400/4.5-5.6L IS USM is Canons premium telephoto zoom lens. It competes with the EF 300/4L IS and the EF400/5.6L prime lenses as a telephoto and with the EF 70-300/4-5.6IS as a wide range telephoto zoom. In this series of tests I sh...
There are many "alternatives" to the 100-400, and for sure it is not the right lens for everyone. If you dont need a lot of reach, and you want the best quality, the 70-200 f/2.8 IS is the best choice. Otherwise, if you dont mind size and...
Good Very versatile zoom range, ideal for wildlife, It is light and small enough be be carried everywhere, and it is easy to handhold, Excellent autofocus, Good image quality between 100 and 300mm, Minimum focussing distance of just 1.8 and macro rati...
Bad Slight softness and harsh bokeh at 400mm...
Its not surprising to hear people swear by this lens: in 1998, there wouldnt have been much else in the price range that would have been as sharp. The push-pull design doesnt appeal to everyone for a variety of reasons, but its hard to deny the le...
The Canon 100-400mm IS L is a very high performance ultra-telephoto zoom. It's also a huge bargain because it's been in Canon's catalog for a while, so it's an incredible deal today for an ultrasharp super long zoom.The 100-400 is a fully professional L l...
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