QHY533 M/C
Description With the advantage of low readout noise and high-speed readout, CMOS technology has revolutionized astronomical imaging. The QHY533M/C is a new generation of back-illum inated CMOS cameras with 3.76um pixels. The QHY533M/C uses the similar series of sensors as the flagship models QHY600 and QHY268, featuring low 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 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. 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 a negative effect on the image for astronomy such as the “star eater” effect. However, QHY Cameras offer TRUE RAW IMAGE OUTPUT and produces 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 almost 20-year cooled camera design experience, The QHY cooled camera has implemented the fully dew control solutions. 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 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. Amplify Control Compare to the last generation’s astrocam for beginners, like QHY183 or QHY 163, QHY533M has much better amplify control. QHY533M Dark Frame, 300s QHY183M Drak Frame, 300s QHY533M Drak frame, 600s, with highest gain (170) and strech–only very slight amplify can be detected at the corner. Design QHY533M (mono) and 533C (color) have different interface designs to be more flexible to deal with different applications. QHY533M can be directly connected to the QHYCFW3S-SR without removing any part of the filter wheel (like the filter container). This provides a very short back focal length and that’s easy to fix! Besides, QHY533M + QHYCFW3S-SR combination can be easily connected to a DSLR lens, with only one additional adapter (sold separately). Both QHY533M/C comes with an additional adapter for tripod interface. This makes it easier to shoot with DSLR lens. QHYCFW3S Adjustment for QHY533M In order to let all astrophotographers easily use 533M’s threaded interface to connect filter wheel without removing any part of the filter wheel (like the filter container), since 2022, QHYCFW3-SR won’t be loaded with this adapter (below). This adapter is used to connect QHY163 or QHY183 while QHY533M doesn’t need it. Therefore, if you want to get a QHY533M, we recommend you choose QHYCFW3S-SR for the best experience. By the way, this adapter is still contained in CFW3S-SR’s package. You can still use CFW3S-SR with QHY183 or QHY163. QHY533M Parallel Position Adjustment The QHY533M is connected to the QHYCFW3S by using threads， so the sensor may not parallel to the filter wheel when the threads are fully rotated. In this case you can adjust the front part of the 533M to the right angle of the sensor. QHY533C Design A free Adapter Kit E will be provided with QHY533C. The adapters can be directly connected to the 55mm BFL M48 interface MPCC, or Nikon / Canon DSLR lens (need to purchase another DSLR lens adapter). At the same time, the C-port thread can be provided with the QHY533C and you can directly mount the C-port lens. Specifications Model QHY533M QHY533C COMS Sensor SONY IMX533 M SONY IMX533 C Mono/Color Mono Color FSI/BSI BSI Pixel Size 3.76um x 3.76um Effective Pixel Area 3008*3028 (includes the optically black area and overscan area) Effective Pixels 9MP Sensor Size 1 inch A/D Sample Depth Native 14-bit A/D Full Well Capacity (1×1, 2×2, 3×3) 58ke- Full Frame Rate USB3.0 Port:Full Resolution 26.5FPS @8BIT 20FPS @16BIT2160Lines 37FPS @8BIT 28.5FPS@16BIT1080Lines 71.5FPS @8BIT 55FPS @16BIT768Lines 97FPS @8BIT 76FPS @16BIT480Lines 152FPS @8BIT 117FPS @16BIT240Lines 280FPS @8BIT 215FPS@16BIT Readout Noise 1.3 to 3.4e- Dark Current -20C，0.0005e- /pixel/sec Exposure Time Range 30us-3600sec Unity Gain 68 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°） Optic Window Type AR+AR High Quality Multi-Layer Anti-Reflection Coating Anti-Dew Heater Yes Telescope Interface – Support M48 (with adapter) Back Focal Length Actual Back Focal Consumed: 14 mm (Combined with CFW) Standard BFL: 17.5mm（±0.5） 17mm Weight 845g 845g Curves Mechanical Dimensions QHY533M QHY533C QHY533M (mono) and 533C (color) have different interface design to be more flexible to deal with different use scenarios. QHY533C will offer a free Adapter Kit E, which can be directly connected to the 55mm BFL M48 interface MPCC, or Nikon / Canon DSLR lens (need to purchase another DSLR lens adapter). At the same time, the QHY533C provides C-port thread and you can directly mount C-port lens. QHY533M external use of threaded interface can be directly connected to the small filter wheel. This time we will launch a special standard small filter wheel version together with the 533M, which can be assembled directly by the user externally without removing the disc. When the QHY533M + filter wheel combination is connected to a DSLR lens, only an additional DSLR lens adapter ring (sold separately) is required to complete the focus. QHY533M/C comes with an additional adapter for tripod interface. This makes it easier to shoot with a DSLR lens. QHY533M Parallel Position Adjustment The QHY533M uses threads to connect to the QHYCFW3S，so there might be a small problem: the sensor may not remain parallel to the filter wheel when the threads are fully rotated. In this case you can adjust the front part of the 533M to the angle of sensor correct. Specifications Model QHY533M QHY533C COMS Sensor SONY IMX533 M SONY IMX533 C Mono/Color Mono Color FSI/BSI BSI Pixel Size 3.76um x 3.76um Effective Pixel Area 3080*3280 (includes the optically black area and overscan area) Effective Pixels 9MP Sensor Size 1 inch A/D Sample Depth Native 14-bit A/D Full Well Capacity (1×1, 2×2, 3×3) 58ke- Full Frame Rate USB3.0 Port:Full Resolution 27FPS @8BIT 18FPS @16BIT Readout Noise 1.3 to 3.4e- Dark Current -20C，0.0005e- /pixel/sec Exposure Time Range 30us-3600sec Unity Gain 68 Amp Control Zero Amplifer Glow 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 Optic Window Type AR+AR High Quality Multi-Layer Anti-Reflection Coating Anti-Dew Heater Yes Telescope Interface – Support M48 (with adapter) Back Focal Length Actual Back Focal Consumed: 14 mm (Combined with CFW) Standard BFL: 17.5mm（±0.5） 17mm Weight 845g 845g QHY533M QHY533M external use of threaded interface can be directly connected to the small filter wheel. This time we will launch a special standard small filter wheel version together with the 533M, which can be assembled directly by the user externally without removing the disc. When the QHY533M + filter wheel combination is connected to a DSLR lens, only an additional DSLR lens adapter ring (sold separately) is required to complete the focus. QHY533C Adapter Kit E1 can be directly connected to the 55mm BFL M48 interface MPCC, or Nikon / Canon DSLR lens (need to purchase another DSLR lens adapter). E1 is designed for QHY533C, 294C, 163C, 183C, 174C. Of course, if you use 163M/294M/183M/174M while a filter wheel or OAG is not needed, you can use E1 as well.