Extending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses. It features a built-in microcomputer for seamless communication among camera body, lens and extender; features careful lens placement and coatings to minimize ghosting and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum. An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.
Products specifications
| Attribute name |
Attribute value |
|
Length
|
1.07" |
|
Diameter
|
2.83" |
|
Maximum magnification
|
1.4 x |
|
Lens type
|
Extender |
|
Weight
|
7.94 oz |
|
Lens structure (elements/groups)
|
7/3 |
|
Lens mount interface
|
Canon EF |
|
Minimum aperture number
|
2 |
|
Product color
|
Gray |
|
Component for
|
MILC/SLR |