Mount Type: for Canon EF-Mount lens
Magnification: 2 times
Depth of field: Half of the lens Constitution of the lens: 7 glasses,4 groups
Focus mode: full auto focus
Lens coating: Multi-coated
Exposure factor: Approx 4 times
Item size: 6.7 * 5cm / 2.6 * 2.0in(D*H)
Item weight: 131g / 4.64oz
Package size: 9.5 * 9.5 * 9.5cm / 3.7 * 3.7 * 3.7in
Package weight: 202g / 7.17oz
- Compatible for Canon EF-Mount 100mm and above Lens. (Perfect for 200 ~ 500mm lens, lens under 60mm is not recommended.)
- Can increase the lens focus length to 2 times.
- Support lens' AF function (Auto Focus) and won't affect to Exif information.
- Adopt 7 optical glasses, 4 groups, the depth of field is half of the lens.
- Equipped with USB firmware upgrade port. Good helper for long distance photography.