Canon EF 1.4X II Extender Telephoto Accessory @ richardeward.com

Canon EF 1.4X II Extender Telephoto Accessory
from Canon

Features:

• 1.4x telephoto extender for multiplying focal length of Canon 135mm or longer lenses
• Fits all 135mm or longer fixed focal length lenses and some 70-200mm telephoto lenses
• Preserves autofocus on any EOS camera when combined with f/4 or faster lens
• Weather-resistant construction and improved anti-reflective surfaces in the barrel

Customer Reviews:

• Avg. Customer Rating: 4.5 / 5.0

• Better than the 2X
  I have the 2x converter but found this to be a bit soft and certainly slow on autofocus with both my 100-400 and 70-200f2.8 lenses. A fellow enthusiast told me to try this converter and I am so glad I took his advice. I used it with my 70-200 at the local airshow and was amazed at some of the shots I got even into the sun [you dont get an option usually at an airshow] The focussing was fast and accurate. Follow the instructions though about attaching this as regards sequence and switch the camera power off... more info

• Nice build quality!
  I just got this, but was happy to see that it is "L" build. That is, metal and matches the color/style of the 70-200mm f/2.8L IS USM.
  No tests yet to comapre before/after. Does anyone know pf a good test pattern to download and print that has progressively smaller lines, like a "bull's eye" style pattern for testing lens sharpness? I see a lot of subjective evaluations, but would liek to see some pictures at a fixed length that actually demostrate the differences.
  I'll look for something like this... more info

• Good Toys to play with
  There no words to say then GOOD
  It very help with the zoom lens.

• Another Good Canon Product
  Got this to go with my 70-200L 2.8 IS lens which this is perfect for my shooting needs. Gives the added extension to the lens on my 5D and still maintains the image stabilizing and AF function. Canon did design this to fit only specific Canon lenses.
  I tried it on my Sigma 50-500 and the outerbarrel of the TC will not fit inside of the Sigma.
  Otherwise the TC was pretty sharp at least my copy is .

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