Kenko DGX 2x Teleplus Pro 300 with 60D

I like my canon 2 X III , but it will not fit on most of my lenses . It does a better job on my 70-200 than others .

If you can , try out in a camera store - I use the wall where film is displayed .

Otherwise , order from 2 or 3 companies that have good return and send back what you don't like .

I pay a little more , but can try out in a camera store and I do pay more just because I like to test and don't think it is really that much more when you figure in my time and gas to post office .