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The value is the measured mils of angle included 

between the upper and lower parts. As shown in 

fig. 6, the value of the lower part is 40, the angle 

included between the upper and lower parts of the 

target is 0-75 (75mils).

4.2.3.B

 When the target’s  upper and lower parts 

of  the  is  than  the  mils  on  the  reticle,  it  can  be 

measured in steps and the angle can be obtained 

by summing up the value of each step. (The proc-

ess will be similar to the one that is discussed in 

the linear measurements in 4.2.2 B above).

4.2.4  How  to  use  the  reticle  to  measure  dis-

tance
4.2.4.A

 The  distance  measurement of a target 

can be calculated by using the mil reticule.
The formula of distance measurement:
D(KM)

h(M)/K  D (KM) = H (M)/K

D -  the  distance  between  the  observer and  the 

target (km)
H - the height of the target (m)
K - upper and lower angle of azimuth of the target 

measured with the reticule of binoculars (mil).
  When measuring the distance, first, estimate 

the  height  or  width  of  the  target,  then  measur-

ing upper and lower angle of the target. Accord-

ing, you can calculate the distance between the 

Summary of Contents for 7x30

Page 1: ...7x30 Instructions for use and maintenance...

Page 2: ...Index 1 General Overview 2 2 Technical Specification 2 3 Construction Specifications 3 4 How to use a Binocular with a military style reticle 6 5 Binocular and accessories 15 6 How to care for your bi...

Page 3: ...it is a flow er bird where color is important or a military target The user can have confidence whether it is being used in a military public security traffic control boating aviation or any other app...

Page 4: ...ance 56 72 mm Resolution max 5 5 2 2 Size and mass Size length x width x height 174mm X 48mm X 110mm Weight Binoculars max 0 5kg 1 25 lbs Complete product max 1 0kg 2 5 lbs 3 Construction Specificatio...

Page 5: ...2 fig 1 it becomes right side up erect and changed from right to left to left to right so written words appear correct Until this happen the word word looks like drow At this point the image rays are...

Page 6: ...the diopter settings is from 5 to 7 Each mark of the diopter dial on the eyepiece reflects one diopter adjustment Item 2 is the main binocular body housing the porro prism assembly Item 3 is the obje...

Page 7: ...te the image will not be clear You will adjust for clarity in the next step You must first fit the binocular to your eye width distance 4 1 2 Adjusting for the use of regular glasses or sunglasses Thi...

Page 8: ...mber the diopter setting for the right eye Now closing your right eye repeat the process you used for the right eye and turn the left diopter until you have a per fectly clear image Again take note of...

Page 9: ...orth point A mil s reticule can measure the azimuth angle upper and lower angle distance and size of an object or target The visual distance reticule lines can measure the distance of normal object ea...

Page 10: ...rget then read the value of the scale at which another target was located on the reticule The value is the measured azimuth mil As shown in fig 4 the azimuth of the target tank is 0 20 mils The azi mu...

Page 11: ...ing the image in a position where the vertical line splits the image You will need to take two image readings Mentally consider the horizontal with three reference points Point A is the 50 mil point o...

Page 12: ...ulations you can now obtain the ship s total mil azimuth of 130 mils 60 70 4 2 3 Upper and lower angel measurement Upper and lower angel means the angel included between any two targets or two ends of...

Page 13: ...to the one that is discussed in the linear measurements in 4 2 2 B above 4 2 4 How to use the reticle to measure dis tance 4 2 4 A The distance measurement of a target can be calculated by using the...

Page 14: ...4 2 4 B How to measure distance directly using the reticle in Fig 7 For example if the target is 2 meters in height place the lower part of the target at the horizon tal line on the reticule with the...

Page 15: ...he target using the formula For example the distance is 0 6km between the observer and the target You can measure that the azimuth is 60 0 60 and the upper and lower angle is 30 0 30 So using the form...

Page 16: ...ined in order to keep it in good working order 6 1 General Maintenance 6 1 1 Lenses Always clean the lenses after each use and before you put it back in it s carrying case After each use brush any dus...

Page 17: ...infinity position to avoid any damage of the ocular system in case of accident 6 1 4 Avoid any extreme shaking or dropping of the binocular This may damage the internal optics and prisms Store the bi...

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