QHYCCD 268C-PH
QHYCCD 268C-PH Camera: Advanced Imaging with CMOS Technology Key Features: Cutting-Edge CMOS Sensor: The QHY268M/C features a new generation back-illuminated CMOS sensor, offering low readout noise and high-speed readout for superior...
QHYCCD 268C-PH Camera: Advanced Imaging with CMOS Technology
Key Features:
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Cutting-Edge CMOS Sensor: The QHY268M/C features a new generation back-illuminated CMOS sensor, offering low readout noise and high-speed readout for superior astronomical imaging.
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High-Resolution and Sensitivity: Equipped with a Sony IMX571 sensor, this camera delivers true 16-bit A/D conversion and 3.76um pixels, ensuring detailed and high-quality images.
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Amplifier Glow Free: The QHY268M/C stands out as an amplifier glow-free camera, a significant advantage for capturing clear night sky images.
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Large Image Buffer: Comes with a 1GB DDR3 image buffer to handle the high data throughput of the 26MP sensor, ensuring smooth and uninterrupted image capture.
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Humidity Sensor in QHY268M: The QHY268M model includes an internal humidity sensor for monitoring conditions, a feature not available in the QHY268C variant.
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Backside Illumination (BSI) Technology: Improved full well capacity due to the BSI structure, enhancing the sensor's efficiency in converting photons to electrons.
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True RAW Data Output: QHY Cameras provide authentic RAW image output, maximizing flexibility for post-acquisition processing without the common drawbacks found in DSLR implementations.
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Effective Cooling and Anti-Dew Control: Dual-stage TE cooling and proprietary technology control dark current noise, with a built-in dew heater and sealed chamber to prevent internal humidity condensation.
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Professional Sealing Technology: Drawing on nearly 20 years of cooled camera design experience, the camera features a silicon gel tube socket for humidity control, ensuring no oil leakage.
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Multiple Readout Modes: Specialized readout modes for QHY 16-bit Cameras, offering varied performance to suit different imaging requirements.
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Thermal Noise Suppression: Innovative technology significantly reduces fixed-position thermal noise, characteristic of back-illuminated CMOS cameras.
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UVLO Protection and USB Traffic Optimization: Protects against low voltage damage and minimizes horizontal banding in images through USB traffic adjustment.
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Remote Reboot Feature: The camera can be rebooted remotely by controlling the +12V power supply, ideal for observatory setups.
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Multiple Readout Modes with Enhanced Performance: Includes Photographic, High Gain, Extended Full Well, and 2CMS modes, each offering distinct advantages for astrophotography.
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ASCOM, SharpCap, and N.I.N.A Support: The readout modes are supported in various software, allowing for versatile imaging options and settings.
Specifications
Model | QHY268M | QHY268C |
CMOS Sensor | SONY IMX571 M | SONY IMX571 C |
Mono/Color | Mono | Color |
FSI/BSI | BSI | |
Pixel Size | 3.76um x 3.76um | |
Effective Pixel Area | 6280*4210 (includes the optically black area and overscan area) | |
Effective Pixels | 26MP | |
Sensor Size | APS-C | |
A/D Sample Depth
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Native 16-bit (0-65535 greyscale) A/D | |
Full Well Capacity (1×1, 2×2, 3×3) | 51ke- 75ke- or above in extended full well mode |
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Full Frame Rate | USB3.0 Port: Full Resolution 6.8FPS @8BIT 6FPS @16BIT 2048lines 13.6FPS @8BIT 11.5FPS@16BIT 1080lines 25.4FPS @8BIT 19.5FPS@16BIT 768lines 35FPS @8BIT 25FPS@16BIT 480lines 50FPS @8BIT 34FPS@16BIT |
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Readout Noise | 1.1e- High Gain,
3.5e- Low Gain (5.3e- to 7.4e- in extended full well mode) |
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Dark Current | -20C,0.0005e /pixel/sec
-10C,0.001e /pixel/sec |
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Exposure Time Range | 30us-3600sec | |
Recommend Gain* | 30 (PH Mode, or Extended Full Well Mode)
56 (High Gain Mode) *With the improvement of the CMOS technology, For these 16bit CMOS cameras, even in the lowest gain it has beyond the requirement of unit gain (less than 1e/ADU due to sufficient samples). Learn more at the “Readout Modes” part of this page. |
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Amp Control | Zero Amplifier Glow | |
Firmware/FPGA remote Upgrade | Fully support via Camera USB port | |
Shutter Type | Electronic Shutter | |
Computer Interface | USB3.0 | |
Built-in Image Buffer | 1GByte DDR3 Memory | |
Cooling System | Two-stage TEC cooler
Less than 1S lower than ambient temperature -30C in continuous mode More than 1S continuous mode or lower than ambient temperature -35C in single frame mode (Test temperature +20°) |
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Optic Window Type | AR+AR High-Quality Multi-Layer Anti-Reflection Coating | |
Anti-Dew Heater | Yes | |
Humidity Sensor* | Yes | No |
Telescope Interface | Support M54 or M48 (Combined with adapters ) | Support M54 or M48 (Combined with adapters ) |
Back Focal Length | QHY268M: 12.5mm* *If companies with the QHY filter wheel, the BFL consumed is counted as 12.5mm. The actual BFL (the intercept from the CMOS chip to the top of the camera) is 14.3mm (±0.3). Since most users will match CFW with monochrome cams, please take 12.5mm as a major reference. |
QHY268C: 14.3mm(±0.3)*
*Since 2023, the top part of QHY268C is the same as 268M. |
Weight | About 810g | About 810g |