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The general trademark of a manufacturer by which the consumer knows its products. A manufacturer can have multiple brand names. Some manufacturers license their brand names to other producers.
Product name:
Product name is a brand's identification of a product, often a model name, but not totally unique as it can include some product variants. Product name is a key part of the Icecat product title on a product data-sheet.
EF 500 mm f4.0 L IS USM
Article code :
The brand's unique identifier for a product. Multiple product codes can be mapped to one mother product code if the specifications are identical. We map away wrong codes or sometimes logistic variants.
Category :
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
Data-sheet quality: created/standardized by Icecat
The quality of the data-sheets can be on several levels:
only logistic data imported: we have only basic data imported from a supplier, a data-sheet is not yet created by an editor.
created by Canon: a data-sheet is imported from an official source from a manufacturer. But the data-sheet is not yet standardized by an Icecat editor.
created/standardized by Icecat: the data-sheet is created or standardized by an Icecat editor.
Included since: 27 Jun 2005
The date Icecat noticed for the first time that this product was included in the price list of a channel partner
Info modified on: 03 Jul 2012 11:55:36
The date of the most recent change of the data-sheet in Icecat's system
Product views: 17590
This statistic is based on the 61881 using ecommerce sites (eshops, distributors, comparison sites, ecommerce ASPs, purchase systems, etc) daily downloading this Icecat data-sheet since 27-06-05 Only sponsoring brands are included in the free Open Icecat content distribution as used by 60239 free Open Icecat users.
Long product name Canon EF 500 mm f4.0 L IS USM:
The short editorial description of Canon EF 500 mm f4.0 L IS USM
EF 500 mm f4.0 L IS USM

Marketing text Canon EF 500 mm f4.0 L IS USM

The official marketing text of Canon EF 500 mm f4.0 L IS USM as supplied by the manufacturer
This is an EF lens 500mm 4.0L IS USM.


Diagonal Angle of View: 5°
Lens Construction (elements/groups): 17/13
Closest Focusing Distance (m): 4.5
Focus adjustment: Inner focusing system with USM
Filter Diameter (mm): 52 Rear Drop-in

Next-generation super telephoto L-series lens with an Image Stabilizer, it's one of the world's best lenses for wildlife and nature photography

This 500mm super telephoto lens with Image Stabilizer system and large aperture of f/4 is sure to have wide appeal. Its newly designed optical system consists of 17 elements in 13 groups, including one fluorite lens and two UD lenses. These have eliminated all kinds of aberrations to achieve a level of image quality previously impossible to attain. With ring USM and an improved drive algorithm, its autofocus is the fastest in the world (when used with the EOS-3). The large f/4 aperture permits the use of autofocus when using an extender. The lens's closest focusing distance has been reduced to only 4.5m/ 14.8ft., and it is equipped with full-time mechanical manual focus, a focus preset function, and an AF Stop function. The use of a magnesium alloy for the lens barrel minimizes weight and the lens offers superior dust-proof and moisture-proof performance.

Short summary description Canon EF 500 mm f4.0 L IS USM:
This short summary of the Canon EF 500 mm f4.0 L IS USM data-sheet is auto-generated and uses the product title and the first six key specs.
Canon EF 500 mm f4.0 L IS USM, 17/13
Long summary description Canon EF 500 mm f4.0 L IS USM:
This is an auto-generated long summary of Canon EF 500 mm f4.0 L IS USM based on the first three specs of the first five spec groups.
Canon EF 500 mm f4.0 L IS USM. Lens structure: 17/13, Thread diameter: 5.75" (14.6 cm), Diagonal angle of view (max): 5°. Filter size: 2.05" (5.2 cm), Weight: 8.53 lbs (3.87 kg). Magnification: 0.12x
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Lens System
Lens structure*
The way in which a camera lens is constructed.
Thread diameter
5.75" (14,6 cm)
Diagonal angle of view (max)
Weight & Dimensions
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.
2.05" (5,2 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.
8.53 lbs (3,87 kg)
Other features
The degree to which something is or can be magnified (made to appear larger than it is).