Canon Extender EF 2x II (6846A009AA) Lens Converter

Pros: Excellent image quality, fast AF response, built quality, handling
Cons: none

The Kenko Teleplus PRO 300 1.4X is the tele-converter to be attached between camera and lens to multiply the focal length of the master lens by 1.4 times. I recently bought this converter to use with my prime 180mm lens and 80-200mm zoom (both AF lenses)...

Pros: Doubles focal length, Weather-sealed
Cons: Requires realistic expectations, Protruding front-element limits lens options

The Canon Extender EF 2x II is one out of two teleconverters made by Canon for their lenses. Canon has both a 1.4x teleconverter, as well as this one. It works by doubling the effective focal length range of the lens. Since I do tend to shoot at ...

Pros: series II teleconverter allows you to stack converters for more focal length
Cons: none

The origianl series 1.4x and 2x teleconverters couldnt be stacked unless you used a spacer but now with the new series II you can stack them no problem.
I routinely use the 1.4x and 2x stacked and still get tack sharp pictures this is something you...