Canon EF II 1.4x (6845A004C) Lens Converter
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Canon EF II 1.4x (6845A004C) Lens Converter

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  • Focus: Autofocus, Manual Focus
  • Optical Construction: 4 Groups / 5 Elements
  • Magnification: 1.4x
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Canon EF II 1.4x (6845A004C) Lens Converter

Product Review Summary

Based on 4 user reviews
100% recommend this product
5 stars
4 stars
3 stars
2 stars
1 star

Consumer Reviews


Canon's 1.4x Extender = Zoom Lite

bytheuerkorn Sep 8, 2009
22 Helpfuls 23 Helpfuls Was this review helpful?
Pros Light weight, relatively cost effective, works great with EF70-200mm lens, easy to carry
Cons Physically looses one stop, slight image quality reduction, 40% additional magnification...
Recommended it? Yes

When upgrading to Canon's 5D Mark II, the associated "full frame" sensor (35mm, un-cropped) converted all my lenses back to their "true" focal length and essentially gained in the wide angle while loosing some "reach". What's great in many ways certainly does not work in bird watchers' favor as the... Read full review »


This "Problem Solver" Extends Your "L" Lens, Like A Pro!

byprofaudio1 Mar 18, 2007
21 Helpfuls 22 Helpfuls Was this review helpful?
Pros A real "L" Professional Lens Extender with almost no degradation of the main...
Cons Why didn't I get one of these sooner? (Oh, yea, that's my fault... Never mind.)
Recommended it? Yes

Let's say that you own a Canon "L" Professional telephoto lens and you also need a longer model, but it is completely beyond your reach, financially. That was my dilemma. My solution: the Canon EF Extender 1.4X II, coupled with the excellent lens that I already have. My problem was solved for a... Read full review »


Canon Extender EF 1.4X a great addition to your bag.

bypennyjack Jun 27, 2005
3 Helpfuls 4 Helpfuls Was this review helpful?
Pros Solid construction, improves zoom w/ little loss of image quality or AF speed
Cons PRICE - $300 ouch! Weight - it is heavy for its size
Recommended it? Yes

The Canon Extender EF 1.4X is a solid, hefty piece of equipment that adds significant zoom to (in my case) the Canon EF 70-200mm f/4.0L USM. The extender will cause you to lose an f stop but if your objective is to improve zoom capabilites then the tradeoff is worth it. I experienced little to no... Read full review »

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Product Details and Features


UPC 013803002423
Product ID 21850288

Physical Dimensions

Weight 7.8 oz.
Diameter 2.9 in.
Length 1.1 in.

Key Features

Focus Autofocus, Manual Focus
Optical Construction 4 Groups / 5 Elements
Magnification 1.4x

Product MPN

MPN 6845A004AA

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