[ 光學鏡組 | NIKON | L-OFM18113MN ]

■ Rayfact 1.75x - L-OFM18113MN

Model	L-OFM18113MN
Focal length	100.2 mm
NA (object space)	7.7 ( at Standard magnification )
Magnification scale	-1.75x
Reference wavelength	546.07 mm ( E-line )
Wavelength range	400~800 nm
Picture angle	17.8°
Image size	64 mm Φ
Object size	36.57 mm Φ
Distortion	0.1 % (at 64 mm Φ)
Relative illumination	65.2 % (at 64mm Φ)
Aperture scale	2.8 , 4 , 5 , 6 , 8 , 11 ( 18° interval , 1/2 dials with a finger stop )
Object-to-image distance	392.1 mm
Working distance	92.6 mm
Mount size	M45 ( P=0.75 )
Flange-to-image distance	203.2 mm
Back focus	200.4 mm
Attachment size	-
Diameter / length	57 mm Φ x 100.3 mm
Weight	約 350 g

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update： 2020-03-27