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Basler Lens C12-2524-25M-P#

Basler Premium C-mount lens with a fixed focal length of 25 mm, aperture range from F2.4–F16, and a resolution of 25 MP.

Basler Lens C12-2524-25M-P F2.4 f16.0 mm

Key Features#

  • Fits all Basler cameras with a sensor size of up to 1.2"
  • Minimal aperture of 2.4 for the whole series
  • Metal housing
  • C-mount
  • Locking screws for iris and focus
  • Aperture indicators on iris ring and lens barrel
  • High contrast


The technical data shown in the following sections are nominal design values. The real values of the delivered products can deviate from the nominal design values.

General Specifications#

Order Number 2200001663
Focal Length f' 25.4 mm ± 5 %
Aperture Range F2.4–F16
Aperture with Highest Resolution F2.77
Image Circle 19.3 mm (1.2" format)
Focus Range 150 mm to infinity
Optimum Working Distance 0.7 m
Relative Illumination at Full Aperture 66 %
Resolution Designed for 184 LP/mm (2.71 µm pixel size, see Resolution versus Image Height)
MTF Measured in the Center at 140 LP/mm / 200 LP/mm (conditions: F2.4, polychromatic, 0.45 m working distance) 0.48/ 0.40
MTF Measured in the Corner (80% field) at 140 LP/mm / 200 LP/mm (conditions: F2.4, polychromatic, 0.45 m working distance) 0.42 / 0.30
Optical Distortion / TV Distortion -0.24% / -0.08%
Angle of View, 1.2" Format Horizontal: 32.0°
Vertical: 27.8°
Angle of View, 1" Format Horizontal: 31.7°
Vertical: 16.5°
Wavelength Range Visible (400–700 nm)
Back Focal Length, s'F 11.34 mm (Focus 0.5 m)

→ See Terminology (Basler Lenses).

Mechanical Specifications#

Flange Back 17.526 mm
Mount C-mount
Weight Approx. 215 g
Focus/Iris Operation Manual

Lens Dimensions#

Basler Lens C12-2524-25M-P

→ Download the CAD/technical drawing for your Basler Lens.

Precautions, Mounting, and Cleaning (Basler Lenses)#

→ See Precautions, Mounting, and Cleaning (Basler Lenses).

Environmental Requirements#

Temperature During Operation -20–60 °C (-4–140 °F)
(For best results, adjust the focus when a steady operating temperature has been reached.)
Humidity During Operation 10–90 % relative humidity, non-condensing
Temperature During Storage -20–60 °C (-4–140 °F)

Performance Chart#

Resolution versus Image Height#

Conditions: f/2.4, polychromatic, 0.7 m working distance

Resolution versus Image Height