- For close-up and macro photographs ,- Shooting distance independent of the focal length: 50 cm (∞) to about 33.5 cm (depends on the closest focusing distance of the lens) ,- Front thread for a second macro lens, a filter, a lens cap or a lens hood ,- AR coating: two layers on each side, for enhanced spectral transparency ,- Quality standard (glass): high-quality lens glass , ,Impact on the pictures: ,- For attractive macro/close-up photographs ,- Despite a greater camera-to-subject distance you will get full frame photos, especially with telephoto/zoom lenses ,- The greater shooting distance allows correct illumination of subjects and small animals are not frightened away - Coating: Coated (2x) ,- Filter Thread: 55 mm ,- Shooting Distance: 33 cm - 50 cm ,- Thickness: +2 Dioptrien 2 years legal warranty only