3. TECHNICAL CHARACTERISTICS
General |
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Magnification, x | 2.8 (5.2*) |
| 4.4 |
Field of view, degree | 17 (9*) |
| 10 |
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Objective lens |
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Focus length, mm | 64 (128) |
| 100 |
1.2 |
| 1.5 | |
Focus range | 10 m to | infinity | |
Eyepiece |
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Focus length, mm |
| 35 | |
Eye Relief Distance, mm |
| 45 | |
Dioptre setting |
| +3, | |
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Mechanical characteristics |
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Overall dimensions, mm | 225 x 82 x 74 |
| 252 x 82 x 74 |
Weight, kg | 0.97 |
| 1.10 |
Working conditions |
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Temperature range | |||
Relative humidity | 0 to 98% | ||
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* with optional 2x lens (doubled magnification).
Electrical parameters |
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Power supply | 2 batteries (AА type) |
Voltage, V | 3 |
Continuous work time, h, minimum |
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- | 60 |
- Active mode (with I/R) | 5 |
Image intensifier tube |
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Type | Gen. II, 25mm MCP |
Photo cathode sensitivity, ∝A/lm | |
Gain, maximum | 50,000 |
Resolution, Lp/mm | |
Infrared illuminator |
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Type | IR diode |
Power, mW | 75 |
Illumination angle, degree | |
Illumination Spectrum, nm | 805 |
P.S. Technical characteristics may be improved without prior notice.
6
8.Make a control shot and find out whether the aiming point coincides with the bullet hit point. (Make the correction again if necessary);
9.Set the protective caps into their places.
The device is ready for operation.
While performing the adjustment it should be considered that the marking displacement mechanism of the device is equipped with a click holder that displaces the marking both in vertical and horizontal direction.
Focus length of the objective lens, mm | 64 | 100 |
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One click shift of the marking at the |
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distance of 100 m, mm | 54 | 34 |
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At 100 yards, inches (”) | 1.944 | 1.244 |
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8. TAKING PHOTOS AND VIDEO SHOOTING
DN 310 can be supplied with an optional adapter for photo/video devices for night photo/video shooting.
Night photo shooting with DN 310 is easily performed using 35mm SLR cameras such as
Nikon, Canon, Pentax etc. with standard objective lens
Preparation of the device for photo shooting:
1.Screw the adapter ring supplied in the set (diameter 52mm or 37mm) into the setting place of the light filter of the objective lens in your camera. If the objective lens of your camera has another setting diameter for a light filter (for example, 49mm or 58mm) your have to purchase step up or step down adapter rings from the 52 mm to your size. Such adapters are typically sold at camera stores.
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