ZWO ASI461mm Pro Medium format Cooled Mono Camera
ZWO ASI461MM Pro Medium Format Cooled Camera
ASI461MM Pro adopts Sony's medium format IMX461 sensor. It has native 16-bit ADC with 65536 levels, back-illuminated structure and high quantum efficiency, giving great performance in DSO imaging, milky way imaging and scientific research. It features very low readout noise and nearly zero visible fixed-pattern noise.
100 Megapixels
ASI461MM Pro is a 100mp camera with a large sensor size of 44mm*33mm and a high resolution of 11656*8750. The 3.76um pixels accommodate an impressive full well capacity of 50.3ke, while at Bin2 mode you can reach an even larger full well capacity of 198ke and a larger pixel size of 7.5um.
No Amp Glow
Traditional CMOS sensors produce a weak infrared light source during operation, which is quite often seen in the corner of uncalibrated images. This is the tell-tale signs of "amp glow". As the ASI461mm Pro uses zero amp glow circuitry, you won't have to worry about amp glow even when using high grain, long exposure imaging.
Anti-Dew
ASI461MM Pro comes with a polyimide heater that sits on top of the protective window. It will heat the window to avoid any dew problems. The power consumption of this heater is around 5W. You can turn this function off in your imaging software if you want to save power.
Camera Performance
HGC Mode
ASI461MM Pro is integrated with HCG mode, which can help you greatly reduce readout noise and keep the dynamic range at a high level when you're using higher gain. Set gain 100, then the HCG mode will be automatically turned on. The readout noise can be very low, while the dynamic range is basically un-changed.
Quantum Efficiency
QE curve and readout noise are two of the most important elements to measure a camera's performance. Based on our calculation, the QE peak value of ASI461 is 91%.
Two-Stage TEC Cooling
The TEC cooling system of the ASI461MM Pro can precisely control the temperature of the sensor, and lower it to 30c-35c below ambient temperature. (tested at 30c ambient temperature)
What's in the box:
Note: External power supplies are needed for all ASI Cooled cameras. We recommend a 12V@3A DC adapter (5.5mm*2.1mm centre positive) or a lithium battery with 11V-15V to power the camera. Be aware that using a power supply out of this voltage range will likely lead to irreparable damage to the camera.
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