QHY163M Monochrome Astronomical Camera
Article number: | QHY163M |
Availability: | More on the Way to us |
QHY163 is a model designed for astrophotography beginners. It exhibits excellent sensitivity and low noise with its 4/3-inch sensor having about twice the field of view. It is well suited to planetary and deep-space imaging particularly when mated with the CFW3 filter wheel. This model has two-stage thermal electric cooling of the sensor to about minus 40 degrees C below ambient for maximum reduction of dark current noise in long exposures.
QHY163 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.
QHY163 utilizes the Anti-Dew features common to the QHY COLDMOS cameras. Dew is moisture that condenses from the air onto the outside of the chamber window. Frost is water vapor that freezes when it comes into contact with the inside of the chamber window or the surface of the sensor. QHY has nearly 20 years of experience designing cooled cameras and these models benefit from those years of anti-dew and anti-frost design experience. To help prevent dew from forming on the chamber window heating elements are built into the light shield just above the chamber. To avoid frost from forming inside the chamber a desiccant tube is provided that can easily be attached by the user to the outside of the camera when needed to dry the internal atmosphere of the chamber and remove any built-up moisture.
QHY163 models can be used as guiding devices, too. The Opto-isolated guiding port is a standard ST-4 configuration using an RJ11 style Jack. A guiding cable is included with each camera.
The QHY163M uses a relatively large 4/3-inch, 16 Megapixel CMOS sensor, available in both monochrome and color. The QHY163M has exceptionally low readout noise (as low as 1 electron!), low dark current and two-stage cooling capable of reducing the sensor temperature to -40C below ambient. The sensor chamber is sealed and the optical window is heated to prevent dew. The camera’s interface is USB 3.0 and delivers 23FPS@16 megapixel full resolution output, 30FPS@4K HD video output.
Model | QHY163M |
CMOS Sensor | Panasonic 16mega pixel 4/3inch sensor |
Mono/Color | Mono only
(163C discontinued in 2020) |
FSI/BSI | FSI |
Pixel Size | 3.8um*3.8um |
Effective Area | 4656*3522 |
Effective Pixels | 16 mega |
Sensor Size
|
Typical 4/3inch
17.7mm*13.4mm |
Fullwell | 18ke- to 20ke- |
AD Sample Depth | 12bit/10bit (output as 16bit and 8bit) |
Max Full Frame Rate and ROI Frame Rate | 22.5FPS@16mega Full Resolution
30FPS@4K HD Video 57FPS@1920*1080 60FPS@1280*1024 80FPS@1024*768 100fps@800*600 |
Readout Noise | 2.4e@low gain
1.0e@high gain |
Dark Current | 0.006e/pixel/sec @ -20C |
Exposure Time Range | 60us-1800sec |
Unity Gain | 120 |
Anti-Glow Control | Yes |
Shutter Type | Electric Rolling Shutter |
Computer Interface | USB3.0 |
Built-in Image Buffer | 128MByte DDR2 memory |
Cooling System | Dual Stage TEC cooler (about -40C below ambient)(Test temperature +20°) |
Optic Window Type | QHY163M: AR+AR High Quality Multi-Layer Anti-Reflection Coating |
Anti-Dew Heater | Silicon gel tube socket |
Telescope Interface | M42/0.75 |
Back Focal Length | 17.5mm |
Weigth | 442g |
For cameras with a sensor larger than 1-inch and smaller than APS-C (QHY163m/294m) we recommend a combination of CFW3M (US) + OAGM (optional);
Model | BFL Consumed | Filters Supported |
QHY163M/294M | 17.5mm | 7 position
36mm unmounted |
CFW3M-US | 17.5mm | |
OAGM | 10mm |
Back Focal Length (BFL), in the commercial camera field, refers to the design distance from the center of the rear lens element to the surface of the sensor. Generally, the lens will only focus correctly at infinity if the camera’s back focal length meets the standard requirements provided by the lens manufacturer. This is also true for many Multi-Purpose Coma Correctors designed to be used on telescopes before the camera.
Optical system | Back focal length required |
Typical Multi-Purpose Coma Corrector | 55mm – 57.5mm |
Canon 35mm lens | 44.1mm |
Nikon 35mm lens | 46.5mm |
Note:
- If you only own CFW3M-SR whose BFL is 20.5mm rather than 17.5mm, this adapter combination can still be used, just remove the 3mm and 0.5mm adapters.
- If your MPCC requires a BFL different from 55mm, this adjustment can be made by selecting the appropriate spacer between the MPCC and the OAG. For example, an MPCC that requires 57.5mm can be used instead by adding a spacer ring or rings that add 2.5mm of BFL. to the diagram above.
- If you don’t use an OAG, you can use a 10mm spacer adapter in the adapter kits to replace the original position of OAG.
- Put OAG at the position next to the M48 Output to make both main cam and guiding cam focused.