TECHNOLOGY REPORT
Marshall Electronics, Inc. 1910 East Maple Av, El Segundo, CA 90245 USA TEL : 310-333-0606 FAX : 310-333-0688
Website: www.mars-cam.com Email: sales@mars-cam.com
V-4402.5-2.5-HR Lens 2.5mm F2.5 High Resolution CCTV Lens
Specification Data Sheet
V-4403.5-2.5-HR Data.doc Page 1 of 4
TECHNOLOGY REPORT
Marshall Electronics, Inc. 1910 East Maple Av, El Segundo, CA 90245 USA TEL : 310-333-0606 FAX : 310-333-0688
Website: www.mars-cam.com Email: sales@mars-cam.com
MTF (modulation transfer function)
DIFFRACTION LIMIT
V-4402.5-2.5-HR
DIFFRACTION MTF
ORA 21-Feb-06
1.0
0.9
0.8
0.7
M
O
0.6
D
U
L
0.5
A
T
I
0.4
O
N
0.3
AXIS
T
0.3 FIELD ( )22.66
R
T
0.6 FIELD ( )41.28
R
T
0.8 FIELD ( )55.88
R
T
1.0 FIELD ( )71.68
R
O
WAVELENGTH WEIGHT
656.3 NM 1
O
546.1 NM 1
O
486.1 NM 1
O
DEFOCUSING 0.00000
0.2
0.1
10.0 20.0 30.0 40.0 50.0
SPATIAL FREQUENCY (CYCLES/MM)
V-4403.5-2.5-HR Data.doc Page 2 of 4