Field of View and Reading Distances

The following maps show the field of view of the DataMan 370 series readers. Reading distance values are also provided for 1-D and 2-D example code distances.

For the C-mount (or other non-Cognex) and S-Mount lenses, the focal length of the lens, focus setting, and aperture setting determine the field of view and reading distance.

The ruler shows the reading distance range. The grid with the FOV cone shows horizontal and vertical FOV values above the arrows.

Note: Due to tolerances, ranges can vary by +/- 5 % from unit to unit.

Reading Distance and Field of View (DataMan 370 Readers with a 10 mm High-Speed Liquid Lens)

The following map shows the FoV of the DataMan 370 series readers with a 10 mm high-speed liquid lens.

The FoV values are shown as follows:

Device	Distances in mm / 1D min code 10 mm HSLL		Distances in mm / 2D min code 10 mm HSLL
DM374	445	6 MIL	307	6 MIL
	591	8 MIL	408	8 MIL
	738	10 MIL	509	10 MIL
	958	13 MIL	660	13 MIL
	1104	15 MIL	761	15 MIL
	1471	20 MIL	1013	20 MIL

Reading Distance and Field of View (DataMan 370 Readers with a 16 mm High-Speed Liquid Lens)

The following map shows the FoV of the DataMan 370 series readers with a 16 mm high-speed liquid lens.

The FoV values are shown as follows:

Device	Distances in mm / 1D min code 16 mm HSLL		Distances in mm / 2D min code 16 mm HSLL
DM37x	676	6 MIL	465	6 MIL
	901	8 MIL	620	8 MIL
	1125	10 MIL	774	10 MIL
	1462	13 MIL	1006	13 MIL
	1687	15 MIL	1160	15 MIL
	2249	20 MIL	1547	20 MIL

Reading Distance and Field of View (DataMan 370 Readers with a 24 mm High-Speed Liquid Lens)

The following map shows the FoV of the DataMan 370 series readers with a 24 mm high-speed liquid lens.

The FoV values are shown as follows:

Device	Distances in mm / 1D min code 24 mm HSLL		Distances in mm / 2D min code 24 mm HSLL
DM37x	1029	6 MIL	709	6 MIL
	1370	8 MIL	944	8 MIL
	1711	10 MIL	1178	10 MIL
	2223	13 MIL	1530	13 MIL
	2564	15 MIL	1764	15 MIL
	3417	20 MIL	2351	20 MIL

Reading Distance and Field of View (DataMan 370 Readers with a 35 mm High-Speed Liquid Lens)

The following map shows the FoV of the DataMan 370 series readers with a 35 mm high-speed liquid lens.

The FoV values are illustrated with a DM374 reader.

DM374, DM375, DM474, and DM475 Field of View for 35 mm

Device	Distances in mm / 1D min code 35 mm HSLL		Distances in mm / 2D min code 35 mm HSLL
DM37x	1300	6 MIL	835	6 MIL
	1750	8 MIL	1110	8 MIL
	2170	10 MIL	1390	10 MIL
	2820	13 MIL	1800	13 MIL
	3250	15 MIL	2080	15 MIL
	4335	20 MIL	2770	20 MIL