Basler Lens C11-1220-12M-P#

Key Features#
- Fits all Basler cameras with a sensor size of up to 1.1"
- Basler Premium Lens
- Metal housing
- C-mount
- Locking screws for iris and focus
- 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.
Specifications#
| C11-1220-12M-P | |
|---|---|
| Order Number | 2200000575 |
| Focal Length f' | 12.39 mm ± 5 % |
| Aperture Range | F2.0–F16 |
| Aperture with Highest Resolution | F2.3 |
| Image Circle | 17.6 mm (1.1" format) |
| Focus Range | 0.1 m to infinity |
| Optimum Working Distance | 0.4 m |
| Relative Illumination at Full Aperture | 58 % |
| Resolution | Designed for 142 LP/mm (3.52 µm pixel size, see Resolution versus Image Height) |
| MTF Measured in the Center at 90 LP/mm / 140 LP/mm (conditions: F2.0, polychromatic, 0.45 m working distance) | 0.56 / 0.4 |
| MTF Measured in the Corner at 90 LP/mm / 140 LP/mm (conditions: F2.0, polychromatic, 0.45 m working distance) | 0.42 / 0.3 |
| Optical Distortion | Typical -3.10 % |
| Angle of View, 1" Format | Horizontal: 56.1° Vertical: 43.6° |
| Angle of View, 1.1" Format | Horizontal: 61.2° Vertical: 46.9° |
| Wavelength Range | Visible (400–700 nm) |
| Back Focal Length, s'F | 10.15 mm |
→ See Terminology (Basler Lenses).
Mechanical Specifications#
| C11-1220-12M-P | |
|---|---|
| Flange Back | 17.526 mm |
| Mount | C-mount |
| Weight | Approx. 211.2 g |
| Focus/Iris Operation | Manual |
Mechanical Dimensions#
→ Download the CAD/technical drawing for your Basler Lens.
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/2.0, polychromatic, 0.45 m working distance
