ZWO ASI991MM-P Monochrome Cooled IR Astronomy Camera
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Please note: This ZWO Pro/Cooled camera must be powered from an external 12V DC power source with a minimum of 3 amps in order to run the TEC cooler and connect to your computer. The camera may not be recognized by a computer or operate properly if only the USB3.0 cable is connected to your computer. You can use ZWO’s 12V DC power supply, the DC Out port on an ASIAir or an external battery. These are not included with the camera.
ASI991MM Pro adopts 1/4" Sony-IMX991lnGaAs sensor, featuring a wide band from 0.4μm to 1.7μm, it is the first and most powerful SWIR camera of ZWO. The camera has a large full well capacity, high sensitivity with an incredible QE peak value of 80% at 1200nm, and a big pixel size of 5μm.
The great performance in capturing short wave infared lights makes it applicable for SWIR imaging, photometric measurement, optical commmunication, laser and optical laboratory and more fields.
Penetrate through the cloud and fog and capture stars in the daytime
ASI991MM Pro can capture high definition images. The wide band (0.4-1.7μm gets the camera's sensitivity into a higher level, making it capable of capturing beautiful night skies with thin clouds, and also alllowing you photograph stars even during daytime.
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 sign of "amp glow." As the ASI991MM Pro uses zero amp glow circuitry, you won't have to worry about amp glow even when using high gain, long exposure imaging.
Notice that this function is integrated into the hardware, so no need to activate it in sotware.
Camera Curve: Readout noise
Readout noise is generated in the amplifier on the chip that converts the stored charge of each photodiode (i.e., pixel) into an anaLog voltage to be quantified by A/D conversion.
The lower the readout noise is, the better the image SNR we'll get. Compared to traditional CCD SWIR cameras, ASI991MM Pro keeps its readout noise at a really low level.
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 ASI991 is over 80% at 1200nm.
Two-Stage TEC Cooling
The TEC cooling system can precisely control the temperature of the sensor, and lower it to 30~35 degrees Celsius below ambient temperature.
It is recommended to use the camera at low temperature to get better imaging performance.
*The Delta T 30°C~35°C is tested at 30°C ambient temperature. It might get down when the cooing system is working for a long time. Also, as the ambient temperature falls, the Delta T would also decrease
Specifications:
- Sensor IMX991
- 1/4″ 3.3*2.6mm
- Resolution 656*520
- ADC 12bit
- Read Noise 21.27e
- Cooling Tempe 35℃
- DDR3 Buffer 256MB
- USB 3.0
- FPS 144
- Full Well 127000e
- QE 80%
- Pixel Size 5µm
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
- Camera body
- Camera bag
- 1.25" Nosepiece
- USB 2.0 Cable (0.5m) x2
- USB 3.0 Cable (2m)
- Quick guide
- T2-M8 Extender (16.5mm)
- T2 Extender (21mm)
- \M42-M48 adapter
- T2-1.25" adapter
- Spacer x4
- Cover
Please note: This ZWO Pro/Cooled camera must be powered from an external 12V DC power source with a minimum of 3 amps in order to run the TEC cooler and connect to your computer. The camera may not be recognized by a computer or operate properly if only the USB3.0 cable is connected to your computer. You can use ZWO’s 12V DC power supply, the DC Out port on an ASIAir or an external battery. These are not included with the camera.
ASI991MM Pro adopts 1/4" Sony-IMX991lnGaAs sensor, featuring a wide band from 0.4μm to 1.7μm, it is the first and most powerful SWIR camera of ZWO. The camera has a large full well capacity, high sensitivity with an incredible QE peak value of 80% at 1200nm, and a big pixel size of 5μm.
The great performance in capturing short wave infared lights makes it applicable for SWIR imaging, photometric measurement, optical commmunication, laser and optical laboratory and more fields.
Penetrate through the cloud and fog and capture stars in the daytime
ASI991MM Pro can capture high definition images. The wide band (0.4-1.7μm gets the camera's sensitivity into a higher level, making it capable of capturing beautiful night skies with thin clouds, and also alllowing you photograph stars even during daytime.
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 sign of "amp glow." As the ASI991MM Pro uses zero amp glow circuitry, you won't have to worry about amp glow even when using high gain, long exposure imaging.
Notice that this function is integrated into the hardware, so no need to activate it in sotware.
Camera Curve: Readout noise
Readout noise is generated in the amplifier on the chip that converts the stored charge of each photodiode (i.e., pixel) into an anaLog voltage to be quantified by A/D conversion.
The lower the readout noise is, the better the image SNR we'll get. Compared to traditional CCD SWIR cameras, ASI991MM Pro keeps its readout noise at a really low level.
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 ASI991 is over 80% at 1200nm.
Two-Stage TEC Cooling
The TEC cooling system can precisely control the temperature of the sensor, and lower it to 30~35 degrees Celsius below ambient temperature.
It is recommended to use the camera at low temperature to get better imaging performance.
*The Delta T 30°C~35°C is tested at 30°C ambient temperature. It might get down when the cooing system is working for a long time. Also, as the ambient temperature falls, the Delta T would also decrease
Specifications:
- Sensor IMX991
- 1/4″ 3.3*2.6mm
- Resolution 656*520
- ADC 12bit
- Read Noise 21.27e
- Cooling Tempe 35℃
- DDR3 Buffer 256MB
- USB 3.0
- FPS 144
- Full Well 127000e
- QE 80%
- Pixel Size 5µm
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
- Camera body
- Camera bag
- 1.25" Nosepiece
- USB 2.0 Cable (0.5m) x2
- USB 3.0 Cable (2m)
- Quick guide
- T2-M8 Extender (16.5mm)
- T2 Extender (21mm)
- \M42-M48 adapter
- T2-1.25" adapter
- Spacer x4
- Cover