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[ 光學鏡組 | NIKON | OFM20119MN ]

■ Rayfact 2x - OFM20119MN

 
Model OFM20119MN
In use -2.0x In use -0.5x
Focal length 95.0 mm
NA (object space)

8.4
( at Standard magnification )

4.2
( at Standard magnification )
Magnification scale -2.0x -0.5x
Reference wavelength 546.07 mm ( E-line )
Wavelength range 400~800 nm
Picture angle 12.8° 12.8°
Image size 64 mm Φ 32 mm Φ
Object size 32 mm Φ 64 mm Φ
Distortion 0.0 % (at 64 mm Φ) 0.0 % (at 32 mm Φ)
Relative illumination 70 % (at 64mm Φ) 70 % (at 32mm Φ)
Aperture scale 2.8 , 4 , 5 , 6 , 8 , 11
( 18° interval , 1/2 dials with a finger stop )
Object-to-image distance 397.6 mm
Working distance 87.0 mm 212.4 mm
Mount size M45 ( P=0.75 )
Flange-to-image distance 220.4 mm 124.9 mm
Back focus 222.0 mm 90.3 mm
Attachment size - M43 (P=0.5)
Diameter / length 57 mm Φ x 98.2 mm
Weight 約 360 g
 
   
 
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update: 2020-03-27