Canon 2x II EF Teleconverter - Description:
It has been re-designed optically and offers excellent performance with compatible Canon EF lenses (same as the Extender Canon EF 1.4x II). Features a new seven-element design, and same weather-resistant design and anti-reflection internal construction as the new Canon EF 1.4x II. The Canon EF 2x II doubles the focal length of any lens it's mounted to, and reduces its effective aperture by two stops. With this extender is possible with any EOS body if the lens has an f/2.8 or faster maximum aperture, and compatible Image Stabilization lenses maintain the IS feature when used with any current EOS camera

Main Features

Magnification: 2x Lens Construction: 7 elements in 5groups
Max. Diameter x Length, Weight: 2.8" x 2.3", 9.3 oz. / 71.8 x 57.9mm, 265g
EXTENDER DATA Lens Attachment Focal Length (mm) f-stop (f) Max.
Magnification (x) AF EF 135mm f/2L USM 270 4 ~ 64 0.38 O EF 180mm f/3.5L
Macro USM 360 6.7*1 ~ 64 2.0 X EF 200mm f/2.8L II USM 400 5.6 ~ 64 0.32 O EF 300mm f/2.8L IS USM 600 5.6 ~ 64 0.28 O EF 300mm f/4L IS USM 600 8 ~ 64 0.47 O*4*5 EF 400mm f/2.8L IS USM 800 5.6 ~ 64 0.31 O EF 400mm f/4L DO IS USM 800 8 ~ 64 0.24 X EF 400mm f/5.6L USM 800 11 ~ 64 0.18 X EF 500mm f/4L IS USM 1,000 8 ~ 90 0.25 O*4*5 EF 600mm f/4L IS USM 1,200 8 ~ 90 0.24 O*4*5

Accessorries

1-Canon front & back caps
2-Canon instruction manual.
3-Canon box.