| Canon Extender EF 1.4x II Specifications | |
| Focal Length Magnification | 1.4x |
| Lens Construction (groups) | 4 |
| Lens Construction (elements) | 5 |
| Maximum Diameter x Length | 72.8mm x 22.7mm (2.9" x 1.1") |
| Weight | 220g (7.8oz) |
Reviews
Source
SLRGear.com
These days, the question might be whether it is as useful to use a 1.4x Extender as opposed to an APS-C camera body, which offers an equivalent of 1.6x extension of the focal length, with no impact on image quality. In its own right, the 1.4x is a good optic: there is some slight impact on overall sharpness and chromatic aberration, and a slight impact on distortion, but otherwise, overall image quality is still very good.
The-Digital-Picture.com
The Canon Extender EF 1.4x II is an easy and relatively affordable way to extend the reach (focal length) of compatible Canon L Series lenses with very little degradation in the final digital picture.
