Canon EF 1.4x Extender - Description:
It can be used with fixed focal length lenses 135mm and longer (except the 135mm f/2.8 Softfocus lens), and the Canon EF 70-Canon EF 200 f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, and 100-400 f/4.5-5.6L IS zoom lenses. Superb optically, Canon EF 1.4X II preserves the image quality of the lens it's mounted to and multiplies its focal length 1.4x. Effective aperture is reduced by one f-stop; autofocus is possible on any EOS camera when combined with a lens having an f/4 or faster maximum aperture. The new version II maintains the outstanding optics of the previous version, and adds enhanced weather- resistant construction, and improved anti-reflective surfaces in the barrel.

Specifications

Magnification: 1.4x Lens
Construction: 5 elements in 4 groups Max. Diameter x Length,
Weight: 2.9" x 1.1", 7.8 oz. / 72.8 x 27.2mm, 220g
EXTENDER DATA Lens Attachment Focal Length (mm) f-stop (f) Max.
Magnification (x) AF EF 135mm f/2L USM 189 2.5 ~ 45 0.27 O EF 180mm f/3.5L Macro USM 252 4.5*1 ~ 45 1.40 O*3 EF 200mm f/2.8L II USM 280 2.5 ~ 32 0.22 O EF 300mm f/2.8L IS USM 420 4 ~ 45 0.15 O EF 300mm f/4L IS USM 420 5.6 ~ 45 0.33 O EF 400mm f/2.8L IS USM 560 4 ~ 45 0.22 O EF 400mm f/4L DO IS USM 560 5.6 ~ 45 0.17 O EF 400mm f/5.6L USM 560 8 ~ 45 0.18 O EF 500mm f/4L IS USM 700 5.6 ~ 64 0.17 O EF 600mm f/4L IS USM 840 5.6 ~ 64 0.17 O

Accessorries supplied

1-Canon front & back caps
2-Canon instruction manual.
3-Canon soft case
4-Canon box Box.