QHY461M-PH
INTRODUCTION
Experience the ultimate in monochrome astrophotography with the QHY461M-PH camera. Tailored to meet the needs of professional astrophotographers and researchers, this high-performance imaging device boasts a high-resolution sensor and advanced features, ensuring you can capture celestial objects with unparalleled precision and clarity.
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High-Resolution Monochrome Sensor: The QHY461M-PH is equipped with a high-resolution monochrome sensor, offering impressive pixel resolution for precise imaging of galaxies, nebulae, and other celestial wonders. Capture every detail and structure with exceptional clarity, making it an ideal choice for scientific observations and deep-sky imaging.
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Advanced Imaging Features: This advanced camera is packed with features designed to enhance your astrophotography experience. From efficient cooling systems to advanced data handling capabilities, the QHY461M-PH ensures top-notch performance even during extended imaging sessions.
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Superior Image Quality: Experience unparalleled image quality with the monochrome sensor, which allows you to capture astrophotographs free from color interpolation artifacts. The absence of a color filter array enhances sensitivity and sharpness, providing astrophotographers with the purest image data.
Key Features:
- High-resolution monochrome sensor for precise imaging and sharpness.
- Advanced imaging features for optimal performance in various conditions.
- Efficient cooling system to minimize noise during long exposures.
- Back-illuminated sensor for improved sensitivity in low-light situations.
- Sturdy construction to withstand demanding astrophotography environments.
Benefits:
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Unmatched Precision: The QHY461M-PH's high-resolution monochrome sensor enables you to capture celestial objects with exceptional detail and precision, allowing for in-depth scientific analysis and stunning deep-sky images.
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Enhanced Sensitivity: With its back-illuminated sensor design, the camera offers improved sensitivity in low-light conditions, making it an excellent choice for capturing faint objects and conducting research-grade observations.
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Versatile Performance: Whether you're an astrophotography enthusiast or a professional researcher, the QHY461M-PH's advanced features cater to a wide range of applications, providing reliable performance in various astrophotography scenarios.
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Scientific Research: It's precise imaging capabilities and monochrome sensor make the QHY461M-PH a valuable tool for conducting scientific research, such as photometry and spectroscopy, in the field of astronomy.
Specifications
| Model | QHY461PH |
| Image Sensor | SONY IMX461 BSI CMOS Sensor |
| Pixel Size | 3.76um x 3.76um |
| Color / Mono Version | Mono Only |
| Image Resolution | 11760 × 8896 |
| Effective Pixels | 102 Megapixels |
| Effective Image Area | 44mm x 33mm |
| Sensor Surface Glass | AR+AR Multi-Coating Clear Glass |
| Full Well Capacity (1×1, 2×2, 3×3) | 50ke- / 200ke- / 450ke- in Standard Mode 80ke- / 320ke- / 720ke- in Extend Full Well Mode |
| A/D | 16-bit (0-65535 greyscale) for 1X1Binning18bit in 2X2 19BIT in 3X3 20BIT in 4*4 software Binning |
| Sensor Size | TYPICAL 3.4inch |
| Read Noise | 1e to 3.7e (in HGC mode) |
| Dark Current | Approx 0.003e/pixel/sec @ -20C |
| Exposure Time Range | 50us – 3600sec |
| Frame Rate | 2.7FPS @ 8BIT 1.3FPS@16BIT on USB3.0 2.7FPS @ 16BIT 6FPS @ 14BIT on 10Gigabit Fiber |
| Shutter Type | Electric Rolling Shutter |
| Computer Interface | USB3.0 |
| Filter Wheel Interface | 4PIN QHYCCD CFW Port |
| Built-in Image Buffer | 1GByte DDR3 Buffer |
| Cooling System | Dual Stage TEC cooler（-35C below ambient with air cooling). |
| Anti-Dew Heater | Yes |
| Telescope Interface | – |
| Optic Window Type | AR+AR High-Quality Multi-Layer Anti-Reflection Coating |
| Back Focal Length | 32.5mm |
Native 16-bit A/D: The new Sony sensor has a native 16-bit A/D on-chip. The output is real 16 bits with 65536 levels. Compared to 12-bit and 14-bit A/D, a 16-bit A/D yields higher sample resolution and the system gain will be less than 1e-/ADU with no sample error noise and very low read noise.
BSI: One benefit of the back-illuminated CMOS structure is improved full well capacity. This is particularly helpful for sensors with small pixels. In a typical front-illuminated sensor, photons from the target entering the photosensitive layer of the sensor must first pass through the metal wiring that is embedded just above the photosensitive layer. The wiring structure reflects some of the photons and reduces the efficiency of the sensor. In the back-illuminated sensor the light is allowed to enter the photosensitive surface from the reverse side. In this case th,e sensor’s embedded wiring structure is below the photosensitive layer. As a result, more incoming photons strike the photosensitive layer and more electrons are generated and captured in the pixel well. This ratio of photon to electron production is called quantum efficiency. The higher the quantum efficiency the more efficient the sensor is at converting photons to electrons and hence the more sensitive the sensor is to capturing an image of something dim.
Zero Amplify Glow: This is also a zero amplamplifierw camera.
TRUE RAW Data: In the DSLR implementation there is a RAW image output, but typically it is not completely RAW. Some evidence of noise reduction and hot pixel removal is still visible on close inspection. This can have hurt the image for astronomy such as the “star eater” effect. However, QHY Cameras offer TRUE RAW IMAGE OUTPUT and produce an image comprised of the original signal only, thereby maintaining the maximum flexibility for post-acquisition astronomical image processing programs and other scientific imaging applications.
Anti-Dew Technology: Based on an almost 20-year cooled camera design experience, The QHY cooled camera implemented fully dew control solutions. The a optic window has built-in dew heater and the chamber is protected from internal humidity condensation. An electric heating board for the chamber window can prevent the formation of dew and the sensor itself is kept dry with our silicon gel tube socket design for control of humidity within the sensor chamber.
Cooling: In addition to dual stage TE cooling, QHYCCD implements proprietary technology in hardware to control the dark current noise.