Zoom lens MWIR F '= 15-330mm F#/ 4.0
Parameter Value
Spectral range, μm 3,6 4,9
Main wavelength (λ0), μm 4,2
Minimum focal length at λ0, mm 15,0
Maximum focal length at λ0, mm 330,0
Aperture ratio 1:4.0
Back focal length, mm 27,4
Image plane Fixed throughout focal range
Optical system length, mm 110,0
Minimum field of view, 2ω, deg 2,1
Maximum field of view, 2ω, deg 44,6
Linear field in image space, 2y ', mm 12,3
Maximum distortion,% 4,93
Minimum distance to the object, m 5 m (f '= 15 mm)
30 m (f '= 330 mm)
Operating temperature range, degrees Celsius -45+60

    18

MTF for a focal length of 15 mm

    144

MTF for a focal length of 133 mm

    275

MTF for a focal length of 211 mm

    275

MTF for a focal length of 330 mm