RS.1 Specifications
| Focal plane | First | |
| Magnification range | 2.5x - 15x | |
| Obj. lens diameter | 44mm | |
| Tube diameter | 30mm / 1.18in | |
| Objective outer diameter | 52mm | |
| Eyepiece outer diameter | 43.6mm | |
| Overall length | 357mm / 14.05in | |
| Weight (without battery) | 24.5oz /694.5g | |
| Internal adjustment range (MOA) | ||
| Elevation MOA | total 100 MOA | |
| Windage MOA | total 70 MOA | |
| Click value | 0.250 MOA | |
| Adjustment per turret revolution | 20 MOA | |
| Parallax adjustment | 10y - Infinity | |
| Exit pupil diameter | @2.5x: 11.4mm | @15x: 2.93mm |
| Eye relief | @2.5x: 86-100mm | @15x:86-100mm |
| Field of view @ 100y | @2.5x: 41.7ft | @15x: 7.0ft |
| Front/Rear mounting length | F: 54.5mm | R:59.5mm |
| Effective objective lens diameter | @2.5x: 28.5mm | @15x: 44.0mm |
| Field of view | @2.5x: 7.95° | @15x: 1.35° |
| Field of view, apparent | @2.5x: 19.7° | @15x: 20.0° |
| Diopter correction (dpt) | +/-2 | |
| Light transmission | 89.00% | |
| Twilight factor | @2.5x: 8.4 | @15x: 25.7 |
| Functional temperature | -4°~158°F | |
| Submersion tightness / waterproof rating | 3m depth | |
| Gas purged | Nitrogen | |
| Reticle construction | Etched glass | |
| Reticle options | MOA/SHR/ SHR-W/MOA-2 |
|
| Illuminated reticle Y/N | No | |
| Origin | Made in Japan |