» Canon EF 1.4X II Extender Telephoto Accessory

Canon EF 1.4X II Extender Telephoto Accessory Reviews

Customer Rating:
Summary: Better than the 2X
Comment: 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 whilst adding it otherwise I have found the auto focus doesnt pick up so well if you add it with power on.

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Customer Rating:
Summary: Nice build quality!
Comment: 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 and update this review with pictures once I do.

Oh, and my f/2.8L is a f/4L with this thing attached.

Thanks, Canon!

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Customer Rating:
Summary: Good Toys to play with
Comment: There no words to say then GOOD
It very help with the zoom lens.

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Customer Rating:
Summary: Another Good Canon Product
Comment: 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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Customer Rating:
Summary: a little heavy for its size but works just great!
Comment: It comes with a little bag to store it in the gadget bag and as I said its a little heavy for its little size, yet it doesnt become a burden to carry at all. I am using it with a 70-200 f4L IS and the size of the combined lens looks quite long on a rebel XTi and of course draws attention to it. I dont notice any quaility decrease (on the pictures) when used with this lens, but anyway, im not using any lab equipment or pixel picking to really test that. The build feels solid and it fixes well to the other lens as if it becomes a part of it, I think thats what the intention is of course. The color of this extender is exactly the same as the 70-200 f4L IS which is not white but rather grayish, they both look beautiful together !

I highly recommend it since it does make quite a difference and overall it is a professional and very well developed pice of equipment. Im actually thinking on also having the 2x later on to achieve the 640mm with my 70-200L and a small sensor such as the XTi or the 40D.

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