Canon Teleconverter 2.0, yes or no?

Thanks for your thoughts.
I ordered a Kenko 1.4 today, the pro version. It saved about $100 over the Canon.
I figured it would be worth giving it a try.

Thanks to everyone for all the help.

I don't think it's that the 2x converters are optically bad, just that adding two stops to a longish lens is starting to push the limits of hand-holdability. It's certainly a lot easier to carry a 2x converter rather than another lens, so you are more likely to have it with you when out and about.

Graham

Personally I will never use a 2 X convertor. The image quality suffers to much IMO.

Good luck.

These pictures were taken at 400mm with the Kenko 2x on my 70-200mm

The image quality isn't as awful as people imply, but it takes a fair bit of PP to get the best out of them...

http://i13.photobucket​.com …cotland-2006/IMG_1832.jpg
http://i13.photobucket​.com …cotland-2006/IMG_1543.jpg

The reach it gives you is very good though

From this (70mm)