Lens/100mm f digitale photocamera EOS-10D Canon initiated the EF lens line in March 1987 as part of the innovative EOS system with the underlying development concept of fusing automatic and manual operation. Heralding a new era in SLR photography, the EF lenses with built-in focusing motors were the first to communicate completely electronically with the camera body. Followed by the high optical performance L-series, incorporating the silent Ultrasonic Motor (USM) and at a later stage the worlds first interchangeable SLR lens with an image stabilizer, the EF lens series today is the largest line-up in the autofocus SLR world.This telephoto macro lens is capable of focusing to life-size (1X) without attachments. Although it replaces the EF 100mm f/2.8 MACRO lens marketed in 1991, it is a completely new design. It Product Description Canon macro lens - 100 mm Lens System Macro lens Mounting Type Canon EF Lens Aperture F/2.8 Focal Length 100 mm Min Focus Range 31 cm Focus Adjustment Automatic, manual Lens Construction 8 group(s) / 12 element(s) Special Functions Macro Filter Size 58 mm Length 11.9 cm Weight 600 g Localisation English Manufacturer Warranty 1 year warranty