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

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 not very dramatic

The Bottom Line: The easiest way to give your existing lenses a bit more reach. Not perfect, but easy to carry and use.

Review: 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...

Pros: A real "L" Professional Lens Extender with almost no degradation of the main lens's performance.

Cons: Why didn't I get one of these sooner? (Oh, yea, that's my fault... Never mind.)

The Bottom Line: Affordable way to gain extra focal length on your Canon Pro telephoto lens, without buying a new longer "L" lens. This gadget is a NO BRAINER!

Review:

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...

Pros: Great accessory. Simple, compact, lightweight, effective.

Cons: Somewhat expensive for such a small accessory, slightly cumbersome to remove mid-shoot.

The Bottom Line: Excellent accessory that provides great versatility for telephoto shooting.

Review: 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...

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

Review: 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...