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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 20-35 mm f3.5-4.5 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: 15 Jul 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 11:16:32
The date of the most recent change of the data-sheet in Icecat's system
Product views: 30439
This statistic is based on the 67999 using ecommerce sites (eshops, distributors, comparison sites, ecommerce ASPs, purchase systems, etc) daily downloading this Icecat data-sheet since 15-07-05 Only sponsoring brands are included in the free Open Icecat content distribution as used by 66256 free Open Icecat users.
Long product name Canon EF 20-35 mm f3.5-4.5 USM Black:
The short editorial description of Canon EF 20-35 mm f3.5-4.5 USM Black
EF 20-35 mm f3.5-4.5 USM

Marketing text Canon EF 20-35 mm f3.5-4.5 USM Black

The official marketing text of Canon EF 20-35 mm f3.5-4.5 USM Black as supplied by the manufacturer
This is an EF lens 20-35mm f/3.5-4.5 USM.

- Focal length and maximum aperture: 20-35 mm 1:3.5-4.5
- Lens construction: 12 elements in 11 groups
- Diagonal angle of view: 94°-63°
- Focus adjustment: Inner focusing system with USM
- Closest focusing distance: 0.34m / 1.1ft
- Filter size: 77mm.

Highly portable lens with high optical performance and lightweight
Highly portable lens with high optical performance and light weight of 340g. A very practical ultra-wide-angle zoom. The large front lens group minimizes peripheral darkening, and the flare-blocking diaphragm minimizes flare. Also, with lens group 2 being the zoom group, distortion is corrected.
Short summary description Canon EF 20-35 mm f3.5-4.5 USM Black:
This short summary of the Canon EF 20-35 mm f3.5-4.5 USM Black data-sheet is auto-generated and uses the product title and the first six key specs.
Canon EF 20-35 mm f3.5-4.5 USM, 12/11, 22 - 27, 3.29" (8.35 cm), 94°, Black, 3.03" (7.7 cm)
Long summary description Canon EF 20-35 mm f3.5-4.5 USM Black:
This is an auto-generated long summary of Canon EF 20-35 mm f3.5-4.5 USM Black based on the first three specs of the first five spec groups.
Canon EF 20-35 mm f3.5-4.5 USM. Lens structure (elements/groups): 12/11, Aperture range (F-F): 22 - 27, Thread diameter: 3.29" (8.35 cm). Color of product: Black. Filter size: 3.03" (7.7 cm), Weight: 12 oz (340 g). Magnification: 0.13x
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Lens system
Lens structure (elements/groups)*
The way in which a camera lens is constructed.
Aperture range (F-F)
Aperture range of the device's optics, expressed in f-stops.
22 - 27
Thread diameter
3.29" (8,35 cm)
Diagonal angle of view (max)
Color of product
The colour e.g. red, blue, green, black, white.
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.
3.03" (7,7 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.
12 oz (340 g)
Other features
The degree to which something is or can be magnified (made to appear larger than it is).