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Brand:
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.
Canon
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 400 mm DO IS USM
Product code :
The brand's unique identifier for a product. Multiple product codes can be mapped to one mother product data-sheet if the specifications are identical. We map away wrong codes or sometimes logistic variants.
7034A004
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 product data-sheet 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: 06 Feb 2017 11:16:31
The date of the most recent change of this product data-sheet in Icecat.
Product views: 21362
This statistic is based on the 66660 using ecommerce sites (eshops, distributors, comparison sites, ecommerce ASPs, purchase systems, etc) downloading this Icecat data-sheet since 27-06-05 Only sponsoring brands are included in the free Open Icecat content distribution as used by 64926 free Open Icecat users .
Long product name Canon EF 400 mm DO IS USM:
The short editorial description of Canon EF 400 mm DO IS USM
EF 400 mm DO IS USM

Marketing text Canon EF 400 mm DO IS USM

:
The official marketing text of Canon EF 400 mm DO IS USM as supplied by the manufacturer
This lens is an EF 400 f/4.0 DO IS USM lens.


Features

The world's first multi-layer DO element for telephoto lens Small and light High image quality Image Stabilization for equivalent effect of a shutter speed of two stops faster Highly resistant against dust and moisture


Built to our professional standards with fast AF, full-time mechanical focus and dust and water-resistant construction


The EF 400mm f/4 DO IS USM is the worlds first super telephoto lens incorporating "Multi-Layer Diffractive Optical (DO) Element", for camera lenses, and is considered a major breakthrough. The outstanding feature, being its superb ability to correct chromatic aberrations. By incorporating this optical element in the optical design the EF 400mm f/4 IS USM is much smaller and lighter than a comparable lens having conventional optical elements. The Multi-Layer Diffractive Optical Element developed by Canon is a milestone optical element possessing the characteristics of both fluorite and aspherical elements, which has led to the production of high-performance camera lenses.
Short summary description Canon EF 400 mm DO IS USM:
This short summary of the Canon EF 400 mm DO IS USM data-sheet is auto-generated and uses the product title and the first six key specs.
Canon EF 400 mm DO IS USM, 17/13
Long summary description Canon EF 400 mm DO IS USM:
This is an auto-generated long summary of Canon EF 400 mm DO IS USM based on the first three specs of the first five spec groups.
Canon EF 400 mm DO IS USM. Lens structure (elements/groups): 17/13
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Lens system
Lens structure (elements/groups)*
The way in which a camera lens is constructed.
17/13
Thread diameter
12.8 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.
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.
1.94 kg
Other features
Magnification
The degree to which something is or can be magnified (made to appear larger than it is).
0.12x