Lens calculator  

LENS CALCULATOR FOR TELECENTRIC LENSES

You can use this telecentric lens calculator in 2 ways:

• Calculate Field of view. You fill in the lens magnification, the horizontal and vertical resolution
  and the pixelsize of the camera. The result is the field of view
• Calculate Lens magnification. You fill in the the horizontal and vertical resolution and the pixelsize
  of the camera. Now you will increase / decrease the value of the lens magnification till the desired field of
  view is calculated

 

Lens opening angles

The following table can be used as an indication for the opening angle at specific focal lengths and sensor size. Please note that these are just an indication and not exact values. The values for the horizontal and vertical openings angle are provided. The opening angle of the wide-angle lenses (less than 4mm) are based on the specific lens, because for wide angle lenses the correlation between focal length and opening angle can be huge.
 

Focal Length	1.1"	1"	2/3"	1/1.7"	1/1.8"	1/2"	1/2.3"	1/2.5"	1/2.9"	1/3"
LM12-12MP-1.85MM-F2.0-1.8-FISH				hor.= 200° ver.= 200°	hor.= 185° ver.= 185°	hor.= 184° ver.= 185°	hor.= 170° ver.= 185°	hor.= 160° ver.= 185°	hor.= 138° ver.= 185°	hor.= 134° ver.= 180°
LM12-16MP-03MM-F2.5-2.3-HD1							hor.= 123° ver.= 93°	hor.= 115° ver.= 88°	hor.= 100° ver.= 75°	hor.= 96° ver.= 73°
LM12-12MP-03MM-F2.0-1.7-HD1				hor.= 131° ver.= 99°	hor.= 125° ver.= 96°	hor.= 120° ver.= 92°	hor.= 115° ver.= 88°	hor.= 110° ver.= 85°	hor.= 94° ver.= 71°	hor.= 90° ver.= 69°
3.3mm LM12-5MP-03MM-F2.8-2-ND1						hor.= 86° ver.= 70°	hor.= 84° ver.= 68°	hor.= 81° ver.= 65°	hor.= 73° ver.= 55°	hor.= 70° ver.= 50°
4mm					hor.= 82° ver.= 66°	hor.= 77° ver.= 51°	hor.= 75° ver.= 54°	hor.= 70° ver.= 56°	hor.= 64° ver.= 48°	hor.= 61° ver.= 47°
5mm			hor.= 84° ver.= 68°	hor.= 74° ver.= 59°	hor.= 71° ver.= 56°	hor.= 65° ver.= 51°	hor.= 63° ver.= 50°	hor.= 59° ver.= 47°	hor.= 53° ver.= 40°	hor.= 51° ver.= 40°
6mm	hor.= 105° ver.= 86°	hor.= 95° ver.= 78°	hor.= 74° ver.= 57°	hor.= 65° ver.= 51°	hor.= 59° ver.= 46°	hor.= 55° ver.= 41°	hor.= 53° ver.= 39°	hor.= 48° ver.= 36°	hor.= 45° ver.= 34°	hor.= 41° ver.= 31°
8mm	hor.= 85° ver.= 68°	hor.= 77° ver.= 62°	hor.= 57° ver.= 44°	hor.= 51° ver.= 40°	hor.= 46° ver.= 36°	hor.= 42° ver.= 32°	hor.= 41° ver.= 31°	hor.= 38° ver.= 29°	hor.= 35° ver.= 26°	hor.= 32° ver.= 24°
12mm	hor.= 59° ver.= 46°	hor.= 53° ver.= 42°	hor.= 39° ver.= 30°	hor.= 35° ver.= 26°	hor.= 33° ver.= 24°	hor.= 29° ver.= 22°	hor.= 28° ver.= 21°	hor.= 27° ver.= 20°	hor.= 23° ver.= 17°	hor.= 22° ver.= 17°
16mm	hor.= 46° ver.= 37°	hor.= 41° ver.= 33°	hor.= 31° ver.= 24°	hor.= 27° ver.= 21°	hor.= 24° ver.= 18°	hor.= 22° ver.= 16°	hor.= 21° ver.= 16°	hor.= 20° ver.= 15°	hor.= 18° ver.= 14°	hor.= 16° ver.= 12°
25mm	hor.= 31° ver.= 25°	hor.= 28° ver.= 22°	hor.= 20° ver.= 15°	hor.= 17° ver.= 13°	hor.= 15° ver.= 12°	hor.= 14° ver.= 11°	hor.= 14° ver.= 11°	hor.= 13° ver.= 10°	hor.= 11° ver.= 8°	hor.= 11° ver.= 8°
35mm	hor.= 21° ver.= 15°	hor.= 19° ver.= 14°	hor.= 13° ver.= 10°	hor.= 12° ver.= 9°	hor.= 11° ver.= 8°	hor.= 10° ver.= 7°	hor.= 10° ver.= 7°	hor.= 8° ver.= 6°	hor.= 8° ver.= 6°	hor.= 7° ver.= 5°
50mm	hor.= 16° ver.= 13°	hor.= 14° ver.= 12°	hor.= 11° ver.= 8°	hor.= 9° ver.= 7°	hor.= 8° ver.= 6°	hor.= 7° ver.= 6°	hor.= 7° ver.= 6°	hor.= 6° ver.= 5°	hor.= 5° ver.= 4°	hor.= 5° ver.= 4°
75mm	hor.= 11° ver.= 8°	hor.= 10° ver.= 7°	hor.= 6° ver.= 5°	hor.= 6° ver.= 5°	hor.= 5° ver.= 3°	hor.= 5° ver.= 3°	hor.= 5° ver.= 3°	hor.= 4° ver.= 3°	hor.= 4° ver.= 3°	hor.= 3° ver.= 2°