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[ 光學鏡組 | Kowa | FA Lens Series | LM25JC、LM35JC、LM50JC、LM75JC ]
Model Name
LM25JC
LM35JC
LM50JC
LM75JC
Focal Length
(mm)
25
35
50
75
Format Size
(mm)
6.6 x 8.8 (Ø11)
6.6 x 8.8 (Ø11)
6.6 x 8.8 (Ø11)
6.6 x 8.8 (Ø11)
Iris Range
(F-Stop)
F1.6~F16
F1.6~F16
F2.0~F20
F2.5~F22
Focusing Range
(m)
0.2~∞
0.35~∞
0.5~∞
1.2~∞
Control Iris
Manual
Manual
Manual
Manual
Focus
Manual
Manual
Manual
Manual
Shooting Range at M.O.D.
119(H) x
89(V)
126.6(H) x
94.7(V)
85.0(H) x
63.6(V)
50.8(H) x
38.1(V) x
63.5(D)

Field Angle

(H"xV")

 2/3"
21.0 x 15.7
14.4 x 10.8
10.1 x 7.6
6.7 x 5.0
1/2"
15.3 x 11.4
10.5 x 7.9
7.3 x 5.5
4.9 x 3.7
1/3"
11.5 x 8.6
7.9 x 5.9
5.5 x 4.1
3.7 x 2.8
Resolution
(center/corner)
100lpm/60lpm
100lpm/60lpm
100lpm/60lpm
100lpm/60lpm
Distortion
0.60%
0.21%
0.16%
0.10%
Back Focal Length
10.32mm in air
14.9mm in air
17.2mm in air
18.0mm in air
Mount
C-Mount
C-Mount
C-Mount
C-Mount
Filter Diameter
(mm)
M27 x 0.5
M30.5 x 0.5
M30.5 x 0.5
M34 x 0.5
Size(mm)
Ø28.5 x 28.5
Ø32 x 36.5
Ø32 x 39.5
Ø36 x 51
Weight(g)
58
85
88
105
Operating
Temperature
-10℃~+45℃
-10℃~+45℃
-10℃~+45℃
-10℃~+45℃

 
　Optical Magnification At M.O.D. with Extension Tube

Model (Focal Length)
LM25JC
(25mm)
LM35JC
(35mm)
LM50JC
(50mm)
LM75JC
(75mm)
W/O Extension Tube M.O.D.
295mm
243mm
519mm
1,191mm
Mag.
0.08X
0.14X
0.1X
0.07X
1mm Extension Tube M.O.D.
199mm
*
*
*
Mag.
0.12X
*
*
*
5mm Extension Tube M.O.D.
89mm
121mm
269mm
*
Mag.
0.29X
0.28X
0.2X
*
10mm Extension Tube M.O.D.
*
80.5mm
186mm
441mm
Mag.
*
0.43X
0.3X
0.2X
15mm Extension Tube M.O.D.
*
*
119mm
347mm
Mag.
*
*
0.5X
0.27X
20mm Extension Tube M.O.D.
*
*
*
291mm
Mag.
*
*
*
0.33X
　
* Extension Tube is available upon request
   
 
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update： 2020-03-27