Справочник Пользователя для Canon NVD-NORS210

Your NVD-NORS210/220 comes with the photo/video adapter 
allowing for night photo/video shooting.  
Night photo shooting with the device NVD-NORS210/220 is 
easily performed with application of mirror 35mm SLR cameras 
(Nikon, Canon, Pentax etc) with standard objectives that 
have the focal length of 50-58 mm. 
Preparation of the device for photo shooting: 

 

-

  Screw the adapter ring 

supplied in the set 
(diameter 52mm or 37mm) 
to the rest into the 
setting place of the 
light filter of the 
objective in your 
camera. (If the 
objective of your 
camera has another 

setting diameter for a light filter (for example, 49mm or 
58mm) your have to purchase adapter rings from the size 
of 52mm to your size); 

-

  Remove the rubber eyepiece guard from the scope; 

-

  Set the eyepiece in the medium position; 

-

  Fix the adapter ring with a camera on the cylindrical 

belt of the eyepiece body; 

-

  Switch on the device and focus the assembled system with 

the help of the objectives of the device and camera. If 
the image cannot be focused the camera with the ring 
should be removed and the coupling of the eyepiece of the 
device should be turned a little. Assemble the system 
again and check its focusing. At some position of the 
eyepiece and objective of the camera the system will be 
focused exactly; 

-

  Fasten the adapter ring with the camera to the body of 

the eyepiece of the device with the help of three 
blocking screws. During further photo shooting  sharpness 
of the system is obtained with the help of the objective 
of the device only; 

-

  Set diaphragm on the objective of the camera equal 2.8 or 

4 (shooting is possible even at lower diaphragm indices, 
for example 2, but the obtained pictures will have worse 
resolution). Taking photos with a completely opened 
diaphragm of the objective is justified for the shooting 
of quickly moving objects only.  

The TTL system, which is installed at most mirror prism 
cameras easily estimate exposure during the shooting with 

the device. If your camera is not equipped with the TTL 
system, the table can approximately estimate the shutter 
speed at the diaphragm number of the camera equal 2.0: 
 

ISO 

50 100   200   400  800  1600  3200 

Shutter speed, sec. 

1  1/2   1/4  1/8  1/15  1/30   1/60 

VIDEO

 

 
NOTES. 
Use a film ISO 400 or more.  
Application of a tripod is strongly recommended for 
achievement of higher quality of photos.  

 

 
Device maintenance and storage rules are very simple: 
Keep and carry the device in a closed box with a cover put 
on the objective. 
Protect the device from hits and direct influence of rain, 
snow and dust on the optical parts. 
Protect the box from moisture penetration and the device 
should be protected from direct sun influence. The device 
should be kept in a warm dry place far from heating 
devices. Batteries should be taken out. Storage temperature 
must not exceed 60°C. 
 
NVD-NORS210/220 does not work . . . 
Make sure that the batteries have been installed and they 
are in good condition. 

 
NVD-NORS210/220 cannot be focused . . . 
Adjust the objective lens and eyepiece according to the 
instructions specified in the Operation section. If the 
device is not still focusing wipe and clean the optical 
parts. 

 
The image has faded or disappeared completely . . . 
Bright source of light can be a reason of the image 
reduction, loss of resolution or complete disappearance. If 
NVD-NORS210/220 has been switched off automatically, turn 
the switch to the position OFF. The unit will be ready for 
use in one-two seconds. 
 
Condensation effect . . . 
In order to avoid misting of the eyepiece lens in cold time 
use special anti-damping covers (for example, for