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Basler Lens C23-2528-16M#

Basler Premium C-mount lens with a fixed focal length of 25 mm, aperture range from F2.8–F16, and a resolution of 16 MP.

Basler Lens C23-2528-16M F2.8 f25 mm

Key Features#

  • Fits all Basler cameras with a sensor size of up to 2/3"
  • Metal housing
  • C-mount
  • Locking screws for iris and focus
  • Aperture indicators on iris ring and lens barrel
  • High contrast

Info

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#

C23-2528-16M
Order Number 2200002371
Focal Length f' 25 mm ± 5 %
Aperture Range F2.8–F16
Aperture with Highest Resolution F2.8
Image Circle 11.8 mm (2/3" format)
Focus Range 0.1 m to infinity
Optimum Working Distance 1.0 m
Relative Illumination at Full Aperture 76.9 %
Resolution Designed for 250 LP/mm (2.0 µm pixel size, see Resolution versus Image Height)
MTF Measured in the Center at 180 LP/mm / 250 LP/mm (conditions: F2.8, polychromatic, 1.0 m working distance) 0.48 / 0.36
MTF Measured in the Corner (80% field) at 180 LP/mm / 250 LP/mm (conditions: F2.8, polychromatic, 1.0 m working distance) 0.37 / 0.26
Optical Distortion / TV Distortion 0.07 % / 0.04 %
Angle of View, 2/3" Format Horizontal: 20.0°
Vertical: 15.1°
Angle of View, 1/2" Format Horizontal: 14.6°
Vertical: 11.0°
Wavelength Range Visible (400–700 nm)
Back Focal Length, s'F 9.5 mm

→ See Terminology (Basler Lenses).

Mechanical Specifications#

C23-2528-16M
Flange Back 17.526 mm
Mount C-mount
Weight Approx. 83 g
Focus/Iris Operation Manual

Lens Dimensions#

Basler Lens C23-2528-16M

→ 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 -10–50 °C (14–122 °F)
(For best results, adjust the focus when a steady operating temperature has been reached.)
Humidity During Operation max. 90 % relative humidity, non-condensing
Temperature During Storage -10–50 °C (14–122 °F)

Performance Chart#

Resolution versus Image Height#

Conditions: f/2.8, polychromatic, 0.5 m working distance

Resolution versus Image Height