The QHY600 Pro features a back-illuminated sensor with a quantum efficiency of up to 90%. Readout noise is very low, reaching approximately 1.1 e⁻ at maximum gain. The camera offers a typical full-well capacity of 51 ke⁻ in high-gain mode and approximately 80 ke⁻ in extended full-well mode. A 2-CMS readout mode (double signal sampling with averaging directly in the sensor) further reduces readout noise to approximately 1.3 times less than in normal mode.
The camera features USB 3.0 as well as two 10 Gbps fibre-optic interfaces. This enables up to 4 FPS at 16-bit full resolution and 10 FPS at 14-bit. It also supports trigger inputs/outputs and GPS. The QHY600 Pro offers a very linear signal response across the entire dynamic range, with no amp glow and no RBI artefacts.
SBFL (Short back-focal length version) models are specially designed for DSLR lens users or those who has special requirment of short back focal length. This version has a special front part version which has 14.5mm B.F.L only. A model with “SBFL” suffix can easily match Canon/Nikon lens even with filter wheel. On the side of this adapter there is a 4mm hole to connect air pump through plastic pipe in case of the dewing glass when necessary.
Frame Rate:
- Full Resolution: 4.0FPS (8-bit output) ; 2.5FPS (16-bit output)
- ROI: 7.2FPS@9600×3194, 22.5FPS@9600×1080, 28FPS@9600×768, 47FPS@9600×480, 160FPS@9600×100
BSI, back-illuminated CMOS structure:
One benefit of the back-illuminated CMOS structure is improved sensitivity. 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 the 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.
Cooling & Anti-dew Control: In addition to dual stage TE cooling, QHYCCD implements proprietary technology in hardware to control the dark current noise. The 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.
Sealing Technology: Based on almost 20-year cooled camera design experience, The QHY cooled camera has implemented the sealing control solutions. The sensor itself is kept dry with our silicon gel tube socket design for control of humidity within the sensor chamber. By the way, there’s no oil leaking.
What is the difference between the PH and Pro versions?
- PH: Photographic quality. Primarily for astrophotographers.
- Pro: Scientific quality. Primarily for scientific research.
Mono or Color?
Mono:
- Capable of advanced techniques (LRGB, narrowband)
- Additional applications (spectrometry, photometry)
Colour:
- Convenient for RGB imaging
- No need for expensive filters and filter wheels
Both types of camera are capable of creating stunning astroimages, we can only recommend you pick the one that suits you best!
