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Canon EF 2x II extender

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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 2x II extender
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.
6846A003
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
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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
Product views: 17983
This statistic is based on the 74952 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 73245 free Open Icecat users.
Info modified on: 29 Mar 2017 11:15:19
The date of the most recent change of the data-sheet in Icecat's system
Long product name Canon EF 2x II extender :
The short editorial description of Canon EF 2x II extender

EF 2x II extender
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Canon EF 2x II extender:
The official marketing text of Canon EF 2x II extender as supplied by the manufacturer
The effective aperture of the lens is increased by one or two stops respectively. Autofocusing does not operate if the effective maximum aperture is greater than f/5.6 (greater than f/8 on the EOS 1V and EOS 3).


Features


Dust and moisture resistant construction
Extends the master lens focal length by 2x
Minimum loss of lens performance
Reduces inner reflection for higher image quality



The EF 2x II doubles the focal length of any lens it's mounted to, and reduces its effective aperture by two stops


Successors to the EF2x this model offers valuable improvements for further enhanced image quality. This extender allows users to combine practicality and functionality with a new optical system allowing them to extend the master lens focal length by 2x, with minimalloss of lens performance or image quality. With a dust- and moisture-resistant construction this extender has been designed to reinforce the EOS system. Specially designed to work in conjunction with the EOS-1V and IS super telephoto L-series lenses, it makes a highly dust- and water-resistant combination.
The EF2x II features improved anti-reflection materials inside the lens-barrel as well as improved coating around the outer edges of the lenses to reduce flare. All of these improvements will allow professional photographers to capture higher quality images than ever before.
Short summary description Canon EF 2x II extender:
This short summary of the Canon EF 2x II extender data-sheet is auto-generated and uses the product title and the first six key specs.
Canon EF 2x II extender, 7/5, 2.83" (7.18 cm), 2.28" (5.79 cm), 9.35 oz (265 g)
Long summary description Canon EF 2x II extender :

Canon EF 2x II extender. Lens structure (elements/groups): 7/5, Thread diameter: 2.83" (7.18 cm). Filter size: 2.28" (5.79 cm), Weight: 9.35 oz (265 g)

This is an auto-generated long summary of Canon EF 2x II extender based on the first three specs of the first five spec groups.

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Lens system
Lens structure (elements/groups) *
7/5
Thread diameter
2.83" (7.18 cm)
Weight & dimensions
Filter size *
2.28" (5.79 cm)
Weight *
9.35 oz (265 g)
Source Testseek summary Average rating
Reviews
Updated:
2011-09-25
Testseek has collected 3 expert reviews for Canon EF 2x II extender but no overall score was given. Click below and use Testseek to find all ratings, product awards and conclusions.
0%
Source Review comments Score
Slrgear.com
Updated:
2011-10-15
We reviewed the Canon 400mm ƒ/5.6L USM back in 2008, which makes a good candidate for comparison with the 200mm ƒ/2.8L USM and 2x Extender attached. In terms of sharpness, the two are quite similar: the 400mm is slightly better at ƒ/...
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The-digital-picture.com
Updated:
2011-09-25
The Canon Extender EF 2x II is an easy and relatively affordable way to extend the reach (focal length) of compatible and very sharp Canon L Series lenses. The Canon Extender EF 2x II multiplies the focal length setting of your lens by 2 - and decreas...
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Kenrockwell.com
Updated:
2014-10-19
This Canon Extender 2x II is an ultra high performance teleconverter for use with Canon's high-performance telephoto lenses on all Canon EOS digital and 35mm cameras.It multiplies your focal length by 2x and makes your effective aperture two stops less.It...
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