Product Overview
Native 16BIT ADC 65536 Levels
The QHY268C is the CMOS camera with native 16-bit A/D on-chip. The output is real 16-bits with 65536 levels. To compare with the 12bit and 14bit ADC. The 16bit ADC can get high sample resolution, system gain will be less than 1e/ADU. No sample error noise and low noise
Great Full Well
51ke- at 3.76um
One benefit of the back-illuminated CMOS structure is improved full well capacity. This is particularly helpful for sensors with small pixels. Even with unbinned 3.76um pixels the QHY268C has a full well capacity of 50ke-
Back-Illuminated
Electric Rolling Shutter
Low Dark Current
The QHY268C is a back-illuminated Scientific CMOS camera with extremely low dark current using SONY's Exmor BSI CMOS technology.In general, the fan-blade mechanical shutter will be broken if it is used 200,000 times or so, and in some specific cases it is easy to fail to switch on or off. The advantage of electronic shutter over mechanical shutter is high reliability and stability when the observatory shoots a large number of pictures. The electronic shutter is a relatively perfect choice for the observatory.
Specifications
QHY268C MEDIUM FORMAT SCIENTIFIC CMOS CAMERA SPECIFICATIONS | |
| Model | QHY268C |
| Image Sensor | SONY APS-C CMOS Sensor |
| Sensor Type | Back Illuminated (BSI) |
| Pixel Size | 3.76um x 3.76um |
| Color / Mono Version | Only Color Version Avaliable |
| Sensor Surface Glass | Multi Layer AR coating |
Effective Pixels | 26 Megapixels |
Effective Image Area | 6364*4210 (includes the optic black area and overscan area) |
Full Well Capacity (1x1, 2x2, 3x3) | 44ke- / 176ke- / 396ke- |
A/D | 16-bit (0-65535 greyscale) for 1X1Binning 18bit in 2X2 19BIT in 3X3 20BIT in 4*4 software Binning |
Sensor Size | APS-C format |
| Full Frame Rate | 6FPS |
| Read Noise | 1e to 4e |
| Dark Current | TBD |
| Exposure Time Range | 30us - 3600sec |
| Firmware/FPGA upgrade | Fully Support. via Camera USB port |
| Non-volatile memory / On camera storage | Build-in total 64MByte Flash Memory. 10MBytes user-accessible space for stellar ROI frames for analysis of exoplanet investigation, occultations, atmospheric seeing messurement, focus , optic analysis etc. Support 100*100 image x 500frames 50*50 image x4000frames. 25*25 image x16000frames 10*10 image * 250000 frames |
| Shutter Type | Electric Rolling Shutter |
| Computer Interface | USB3.0 |
| Built-in Image Buffer | 2GByte DDR3 Memory |
Cooling System | Dual Stage TEC cooler(-35C below ambient) |
Anti-Dew Heater | Yes |
Telescope Interface | M54/0.75 |
| Optic Window Type | AR+AR High Quality Multi-Layer Anti-Reflection Coating |
Back Focal Length | TBD |
Weigth | TBD |
