QHY183 Colour Camera
QHY
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20 Megapixel, High Res, High QE, Back-Illuminated Cooled COLDMOS Camera
The QHY183C is a one-inch, 20 Megapixel back-illuminated colour CMOS camera with a peak QE of 74%. The pixel size is 2.4um, yielding high-resolution with modest size telescopes. The camera is capable of producing 15FPS@20 Megapixels. It has a two-stage TEC that cools the sensor to -40C to -45C below ambient. The ADC is 12-bit / 16-bit with 1e- read noise! The computer interface is USB 3.0 and exposure times can be set from 50us to 3600sec.
Sony's Image Sensor Exmor R is a back-illuminated CMOS image sensor with improved sensitivity and noise reduction - the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It retains the advantages of CMOS image high-speed operation while dramatically improving sensitivity.
The QHY183C has a 128MB DDR Memory Buffer. A QHY183M 16-bit image is about 40MB, so 128MB of memory can easily buffer a full frame for transfer to the computer using QHY183M software with native single-frame shooting function, instead of intercepting a frame from a continuous video transmission. This makes data transfer to the computer stable and reliable because there is no USB bandwidth or busy CPU problems.
The QHY183C utilizes the Anti-Dew features common to the QHY COLDMOS cameras. A heated optical window prevents exterior dew from forming, and the CMOS chamber has a desiccant plug socket to prevent moisture from forming on the sensor at cold temperatures.
The QHY183C incorporates QHY's Anti-Amp Glow technology to significantly reduce typical CMOS amplifier glow to a minimum, allowing excellent calibration by subtracting a dark frame.
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QHY183M Colour Specifications
Attribute | Details |
---|---|
Model | QHY183M/C |
CMOS Sensor | SONY IMX183 |
Mono/Color | Colour |
FSI/BSI | BSI |
Pixel Size | 2.4μm x 2.4μm |
Effective Area | 5544 x 3684 |
Effective Pixels | 20 Megapixels |
Sensor Size | Typical 1 inch (13.3mm x 8.87mm) |
AD Sample Depth | 12-bit (output as 16-bit and 8-bit) |
Fullwell | 15.5ke- |
Frame Rate |
Full Resolution: 19FPS@8bit, 7.5FPS@12bit ROI: 4096 x 2160 (4K HD Video): 31FPS@8bit, 12FPS@12bit 1920 x 1080 (HD Video): 60FPS@8bit, 24FPS@12bit 800 x 600 (SVGA): 106FPS@8bit, 42FPS@12bit 640 x 480 (VGA): 130FPS@8bit, 53FPS@12bit |
Readout Noise | 2.7e-@lowest gain, 1.0e-@high gain |
Dark Current | 0.0024e-/pixel/sec @ -15℃ |
Exposure Time Range | 50μs - 3600sec |
Unity Gain | 10 |
Anti-Glow Control | Amplifier Glow can be reduced during long exposure |
Shutter Type | Electronic Rolling Shutter |
Computer Interface | USB3.0 |
Built-in Image Buffer | 128MB DDR2 Buffer |
Cooling System | Dual Stage TEC cooler (-40℃ below ambient, test temperature +20℃) |
Optic Window Type | QHY183M: AR+AR High Quality Multi-Layer Anti-Reflection Coating QHY183C: IR-Cut Filter |
Telescope Interface | M42/0.75 |
Back Focal Length | 17.5mm (±0.2) |
Anti-Dew Heater | Available |
Weight | 650g |
Let customers speak for us
from 111 reviewsYeah, not bad at all. Nice crisp and clear and far more ergonomic on my dobsonian than a straight through. Price is on point, well worth it.
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I bought a barlow lense and it's perfect for telescope viewing. Customer service was great too. Would highly recommend.
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Excellent help and advice
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Arrived quickly and was well packed. In perfect order. Easy to read, and easy to use. Makes finding stars homes very simple.
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I bought the UHC Filter and picked up the order from Astronz office. I spent some time at the office and with Andrew. It was a delightful time to share our experience. I used the filter for several nights for observation. I took photos with my smartphone with the filter; the result is impressive, though not professional.
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I screwed the T-Ring T2 to a 55mm M42 extension tube on my telescope. Then I attached my Canon EOS 800D to the bayonet end and noted a rather loose fit. I used the small allen key supplied with the adapter to loosen the three grub screws on the adapter. Firmed up the loosness fit and re-tightened the grub screws. Very satisfied with the quality.
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Very good product and good service delivering it promptly.
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Very happy with binoculars, great service, and excellent advice
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A well made, versatile and useful accessory for 1.25 inch eyepieces. When using small telescopes without a prism or diagonal, there is sometimes not enough focus travel, this extension tube adds to the focus.
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This adaptor works well with an iPhone 16 max pro. It’s easy to fit the phone and get it into an eye piece.
It’s a good way to determine what is and isn’t possible with an iPhone camera.
Steady hands with a 12” Dob can capture the Orion cluster. Open star clusters are also great targets.
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Very happy with our new binoculars and great service from Astronz
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A great product that is easily charged via usb-c.
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I purchased the 8” Astronz Dobsonian and it’s been amazing! First use I was in awe of Jupiter and moons, Saturn, Orion Nebula, Matariki, things I’d never seen apart from pictures. Andrew was super helpful. It’s really easy to setup and use, really good quality, so much to discover!
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I have set it up on my sky tracker and tripod, ready to try but due to busy work and no clear sky in the last couple of week I had no opportunity tu use it. Can you ask for my feedback a bit later please. I gave 5 stars for excellent service and support by Astronz
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