The Sigma APO Teleconverter 1.4x EX DG for Nikon 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.
- 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