Reviews and Problems with Canon Extender EF 1 4x II
Showing 1-10 of 11
Value for money 8
Photoelectric, Photography Review
16 September 2009
Summary: Used on my 70-200 f4 IS and Canon 40D, this converter has given very good results. The trick is to use it with the 70-200 zoomed all the way out to 200. Used this way, the images are very sharp.
Pros: Lends flexibility to existing compatible lenses. Lighter than getting a dedicated long telephoto lens, great image quality.
Cons: Image quality degrades when lens is not at full telephoto - no zooming. Pricey!
Summary: Neat little way of boosting the range of your L-glass. I've actually owned the 2x Extender as well and to be honest never really got on with that. I had sharpness issues and focusing problems, which I seem to be free of with the 1.4.
Summary: The 1.4x extender is designed to provide that extra few mm of focal length when distance is the challenge. I bought it to add-on to the Canon 100-400mm zoom L series f5.6 lens and it works as the Canon spec says it should. It doesn't fit my Canon 70-300mm EF lens.
Summary: Produit de qualité professionnel pour usage avec des zooms série L principalement de chez canon. qualité de fabrication sérieuse . Je l'utilise sur un 70-200mm L IS F2.8 . une fois l'extender en place cela revient à un 90-280mm qui ouvre à F4.0 Je ne pense pas avoir découvert le maximum de cet...