Sigma APO Teleconverter 2x EX DG for Sigma Mount

The APO Tele Converteriscompatible with digital cameras, and when mounted between the lens and the camera body, itcan increase the focal length of the lens by the power of 2. Itare also compatible with the AF function, depending on the open-aperture F value of the lens being used, andworks with the AE (Automatic Exposure) function, dispensing with complicated exposure calculations. The APO Tele Converterincrease maximum photography magnification by2X, without any variation in the minimum focusing distance.

DG – DG for Digital

Sigma’s DG lenses are specifically designed to deliver the ultimate level of performance on full frame digital SLRs. Sigma DGs also maximize the abilities of 35mm SLR cameras and APS-C size DSLRs. Thanks to a complete and comprehensive approach to the correction of chromatic aberrations, you will experience incredible image clarity and smoothness. Specific attention was paid to helping eliminate color fringing often caused by lateral chromatic aberration, a problem that is magnified at high resolution in digital photography. DG lenses provide exceptionally high contrast along with subtle gradations in tone and color. Super Multi-Layer Coating, along with Sigma’s optimized optical design work to reduce reflections between the image sensor and the lens surfaces. The large image circles of DG lenses mean there will always be enough peripheral illumination to avoid vignetting.

EX EX Lens

The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.