| | The Ultron 2.0, 40mm SL II Lens is available in Pentax and Nikon mounts. The Ultron 2.0 / 40 SL II has a flat design with a length of 24.5 mm and comes bundled with a close-up lens, which adjusts the macro-adjustment range from 1:7 to 1:4. The full size image circle can cover both Digital and Film SLR camera. Superior image quality with state-of-the-art optical design. | Focal Length | 40 mm | Aperture Ratio | 1 : 2 | | Smallest Aperture | 22 | | Lens Construction | 6 elements in 5groups | | Picture Angle | 57 ° | | Aperture Blades | 9 | | Nearest Distance | 0,38 m | | Diameter | 63 mm | | Length | 24,5 mm | | Weight | 200 g | | Filter size | 52 mm | | Mount | AI-S, CPU integrated / Pentax K | | Macro Ratio | 1 : 7 | | Optional accessory | filter, macro adapter 1:1 | | | | | | |
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