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RSM Lens Specification | 35mm f/5.6 | 80mm f/5.6 | 80mm AF f/5.6 | 150mm AF f5/6 | 300mm AF 8.0 |
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Lens composition | 12 elements in 8 groups | 8 elements in 5 groups | 8 elements in 5 groups | 8 elements in 5 groups | 11 elements in 9 groups |
Focus Type | Fixed | Fixed | Mechanical Drive | Mechanical Drive | Mechanical Drive |
Minimum focusing range | Infinity | Infinity | 3m to infinity | 10m to infinity | 10m to infinity |
Shutter speed max per sec. | 1/2500 | 1/2500 | 1/2500 | 1/2500 | 1/2000 |
Exposure control | 1/3 f-stop increments | 1/3 f-stop increments | 1/3 f-stop increments | 1/3 f-stop increments | 1/3 f-stop increments |
Aperture range | f/5.6 to f/22 | f/5.6 to f/22 | f/5.6 to f/22 | f/5.6 to f/22 | f/8 to f/32 |
Filter diameter | 58mm | 58mm | 58mm | 58mm | 86mm |
Total length | 77.5mm | 97.5mm | 97.5mm | 132.5mm | 328mm |
Weight | 540g | 470g | 630g | 744g | 1900g |
Angle of view (long side) | 63° | 30.4° | 30.4° | 17.1° | 10° |
Angle of view (short side) | 49.4° | 23° | 23° | 12.9° | 7.6° |
Entrance pupil to image plane | 72mm | 85mm | 85mm | 107mm |