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■ Rayfact IL40mm - PF4040ML

Model	PF4040ML
Focal length	40.1 mm
F Number	4
Magnification scale	-0.1x
Magnification range	-0.033x~-0.2x
Reference wavelength	587.56 mm ( d-line )
Wavelength range	380~700 nm
Picture angle	52.6°
Image size	43.2 mm Φ
Original size	432.0 mm Φ
Distortion	-0.27 %
Relative illumination	Over 52 %
Aperture scale	4 , 5.6 , 8 , 11, 16 , 22 ( 1/2 dials with a finger stop )
Object-to-image distance	493.7 mm
Working distance	419.5 mm
Mount size	d=39mm 1/P=26 ( Leica )
Flange-to-image distance	47.0 mm
Back focus	33.0 mm
Attachment size	M40.5 ( P=0.5 )
Diameter / length	51.2 mm Φ x 42 mm ※1
Weight	約 125 g
※1 Dimension excludes protrusion of screws or other convex part.

■ 尺寸圖

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update： 2020-03-27