Also Available with 65mm Shutter
Absolute Quantum Efficiency
See the Kepler page for details and alternate configurations.
The KL4040 BI scientific CMOS camera has the same sensitivity as back-illuminated CCDs, but with a fraction of the noise even at multiple frames per second. Kepler cooled sCMOS cameras provide ultra-high sensitivity, ultra-low noise, and high frame rates, all at game-changing price to performance ratio.
KL4040BI Specification Sheet (pdf)
KL4040 FI versus BI Quantum Efficiency(pdf)
Kepler Camera Overview(pdf)
Technical Data
| Sensor Type | Back Illuminated CMOS |
| Sensor | GPixel GSense4040BSI |
| Shutter Type | Rolling |
| Active Pixels | 4096 x 4096 |
| Pixel Size (microns) | 9 x 9 µm |
| Imaging Area (Diagonal) | 36.8 X 36.8 mm (52 mm) |
| Full Well Capacity | 39000 electrons |
| Typical Readout Noise | 2.3 e- |
| Dynamic Range | 84 dB |
| Frame Rate | 23 fps (QSFP V2) |
| Cooling Method | Air and Liquid (see Note 1) |
| Max. Cooling (Air) | 40°C below ambient |
| Temperature Stability | 0.1°C |
| Dark Current (typical) | 0.4 eps at -10C |
| Interface | USB 3.0 (Optional QSFP; see Note 2) |
| Data Bit Depth | 16 bit (see Note 3) |
| Optional shutter | 65mm |
| Optional Mounts | Medium Format Recommended |
| Subarray Readout | Standard |
| External Trigger In/Out | Standard |
| SDK / Software | Kepler SDK / FLI Pilot |
| Weight | 4 lbs (1.8 kg) |