Basler Lens C23-2528-16M#
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#
→ 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
