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TOURMALINE F2.0/20 mm 
1.3" TFL-Mount lens

 



Key features

  • Compact design
  • Robust mechanics
  • Image circle 24 mm
  • Low chief ray angle
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TOURMALINE Lens F2.0 20mm TFL-Mount

With a maximum sensor size of 1.3" (24 mm) and a resolution of up to 2.4µ pixel size, the TOURMALINE lenses offer impressive performance. For one, the flat main beam angle makes them suitable for all SONY Pregius™ generations. 

 This high resolution 1.3” TFL-Mount lens is compact and robust and therefore ideal for demanding imaging applications even in harsh environment. The optical design prevents shading with CRA sensitive sensors and the special broadband AR coating enables the use either in the visible 400 to 700 nm or in the NIR 700 to 1000 nm range. Typical applications: machine vision, automated optical inspection, 2D/3D metrology, traffic and surveillance.

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Technical specifications: TOURMALINE F2.0/20 mm TFL-Mount

Type [standard]TFL
ID [standard]1098778
InterfaceTFL-Mount
Focal length [mm]20
Aperture range F/#F/2 ... F/16
Numerical aperture [object | image]- | 0.24
Maximum sensor size [mm]24
Maximum angle of view [°]61
Recommended magnification range-0.1 ... 0
Recommended working distance
range [mm]
194 ... ∞
Minimum working distance without
extension tubes [mm]
194
Filter thread [mm]M35.5 x 0.5
Storage temperature [°C]-25 … +70
Net weight [g]450
Additional info-
f'eff [mm]20.52
SF [mm]-5.62
S'F' [mm]24.18
HH' [mm]23.19
ß'P2.97
SEP [mm]12.53
S'AP [mm]-36.75
Σd [mm]45.68

Lens specifications glossary

 

Specification Description
Focal length Nominal focal length
Aperture range F/# Image space F-number range for infinity focus position
Numerical aperture Maximum real numerical aperture (depending on recommended magnification range either for infinity or respective fixed magnification)
Max. sensor size Image circle diameter
Max. angle of view Angle of view associated with maximum sensor size (depending on recommended magnification range either for infinity or respective fixed magnification)
Rec. magnification range Magnification range as recommended by Schneider-Kreuznach
Rec. working distance range Working distance, i.e. distance between object and first mechanical element, associated with recommended magnification range
Max. mechanical focus travel Maximum possible movement of the lens from infinity position (depending on recommended magnification range either for infinity or respective fixed magnification)
Net weight weight of unpacked lens without lens cap
f'eff Effective focal length
SF Distance between vertex of first lens surface and object space focal point
S'F' Distance between vertex of last lens surface and image space focal point (back focal distance at infinity)
HH' Distance between principal planes
ß'P Pupil magnification (= exit pupil diameter / entrance pupil diameter)
SEP Distance between vertex of first lens surface and entrance pupil
S'AP Distance between vertex of last lens surface and exit pupil
Σ d Distance between vertices of first and last lens surface
s'A Flange focal distance (in air) for infinite object distance (depending on recommended magnification range either for infinity or respective fixed magnification)
ß' Magnification (= image size / object size), negative value because image is inverted
OO' Distance between object and image
Info  Unless otherwise stated all dimensions in this data sheet are in mm

 

Picture of the lens

TOURMALINE Lens F2.0 20mm TFL-Mount

 

Technical drawing

tourmaline-f2-0-20mm-tfl-mount-1098778-technical-drawing.jpg

 

Relative illumination vs. image height

tourmaline-f2-0-20mm-tfl-mount-1098778-relative-illumination-vs-image-height.jpg

 

Distortion vs. image height

tourmaline-f2-0-20mm-tfl-mount-1098778-distortion-vs-image-height.jpg

 

Transmittance vs. wavelength

tourmaline-f2-0-20mm-tfl-mount-1098778-transmittance-vs-wavelength.jpg


MTF charts


 

Spectrum name VIS
Wavelengths [nm] 425 475 525 575 625 675
Rel. weights [%] 8 16 23 22 19 13
tourmaline-f2-0-20mm-tfl-mount-1098778-mtf-charts.jpg


Accessories for the TOURMALINE F2.0/20 mm TFL-Mount lens


Maximise the potential of your industrial lens with our high-quality accessories including camera adapters, extension tubes, filter holders and UNIFOC.

 

More TOURMALINE lenses


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55543 Bad Kreuznach | Germany
+49 (0) 671 601 0

 

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