Useful extender but a bit pricey
Advantages: Does what it says on the tin
Disadvantages: A bit pricey and doesn't work with some lenses
I bought this extender to go with my Canon EF 70-200 f4.0L IS lens. It extends the range to 280mm and increases the maximum aperture to 5.6. This means that autofocus on a 20D, 30D, 40D or 5D body will still function properly ...
buyer991 05.11.2007 · Read full review
Ciao members have rated this review on average: very helpful
Review of Canon Extender EF 1.4x II - converter