The Sigma APO Teleconverter 1.4x EX DG for Canon Digital SLR Cameras is a dedicated APO teleconverter that can be mounted between select lenses and the camera body to increase the focal length by the power of 1.4. The multi-layer coating reduces flare and ghosting, which is a common problem with digital cameras. The lens also offers maximum magnification without any variation in the minimum focusing distance.
Warranty - 1 year America Warranty + 3 year USA extended warranty on manufacturing and workmanship for a total of 4 years of coverage from date of purchase.
- Lens construction: 5 elements in 3 groups
- Focal length: 1.4x that of a master lens
- Aperture coupling range: F2.8 - F32
- Reproduction ratio: 1.4x that of a master lens
- Lens case included