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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Consumer Reviews

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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 »


Great accessory for versatile telephoto capability

byleftism11 Aug 28, 2004
13 Helpfuls 14 Helpfuls Was this review helpful?
Pros Great accessory. Simple, compact, lightweight, effective.
Cons Somewhat expensive for such a small accessory, slightly cumbersome to remove mid-shoot.
Recommended it? Yes

After receiving the 1.4x Extender, I shot about 600 shots at the San Diego Zoo and Wild Animal Park with the extender on a 70-200mm F2.8L (non-IS) Canon lens and a Canon 10D. I got the extender specifically for this type of shoot, as my previous visits to the zoo with the 70-200 alone didn't quite... Read full review »

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