Instruction Manual for ZWO models including: ASI071, Pro Colour CMOS Cooled Camera
Manuals for all ZWO products | ZWO ASI
File Info : application/pdf, 16 Pages, 826.16KB
DocumentDocumentASI071 Manual Revision 1.5 Aug, 2021 All materials related to this publication are subject to change without notice and its copyright totally belongs to Suzhou ZWO CO.,LTD. 1 ASI071 Manual Table of Contents ASI071 Manual ............................................................................................................................... 1 1. Instruction ................................................................................................................................. 3 2. What's in the box?.....................................................................................................................4 3. Camera technical specifications................................................................................................5 4. QE Graph & Read Noise...........................................................................................................6 5. Getting to know your camera....................................................................................................8 5.1 External View......................................................................................................................8 5.2 Power consumption.............................................................................................................9 5.2 DDR Buffer.........................................................................................................................9 5.3 Cooling system..................................................................................................................10 5.4 Back focus distance...........................................................................................................10 5.5 Protect Window.................................................................................................................10 5.6 Analog to Digital Converter (ADC) .................................................................................. 11 5.7 Binning.............................................................................................................................. 11 5.8 Tilt adjustment................................................................................................................... 11 6. How to use your camera.......................................................................................................... 13 7. Cleaning .................................................................................................................................. 14 8. Mechanical drawing................................................................................................................16 9. Servicing ................................................................................................................................. 16 10. Warranty ................................................................................................................................. 16 2 ASI071 Manual 1. Instruction Congratulations and thank you for buying one of our ASI CamerasThis manual will give you a brief introduction to your ASI camera. Please take the time to read it thoroughly and if you have any other questions, feel free to contact us. info@zwoptical.com ASI071 Camera is designed for astronomical photography. This is our first APS-C format CMOS camera which is not only suitable for DSO imaging, but also for other kind of astronomical imaging. The excellent performance and multifunctional usage will impress you a lot! Model ASI071MC Pro ASI071MC-COOL (Discontinued) Mono or Color Color Color Regulated TEC Cooling Sensor Yes SONY IMX071 CMOS Yes SONY IMX071 CMOS For software installation instructions and other technical information please refer to "ASI USB3.0 Cameras software Manual" https://astronomy-imaging-camera.com/ 3 2. What's in the box? ASI071MC Pro ASI071 Manual 4 ASI071 Manual 3. Camera technical specifications Sensor Diagonal Resolution Pixel Size Image area Max FPS at full resolution Shutter Exposure Range Read Noise QE peak Full well ADC DDRIII buffer Interface Adapters Protect window Dimensions Weight Back Focus Distance Cooling: Delta T Cooling Power consumption Supported OS Working Temperature Storage Temperature Working Relative Humidity Storage Relative Humidity SONY IMX071 CMOS 28.4mm 16 Mega Pixels 4944X3284 4.78m 23.6mmX15.6mm 10FPS Rolling shutter 64s-2000s 2.3e @24db gain TBD 46k e 14 bit 256MB USB3.0/USB2.0 M42X0.75 AR window 86mm Diameter 640g 17.5mm Regulated Two Stage TEC 35°C -40°C below ambient 12V at 2A Max Windows, Linux & Mac OSX -5°C~45°C -20°C~60°C 20%~80% 20%~95% 5 ASI071 Manual 4. QE Graph & Read Noise QE and Read noise are the most important parts to measure the performance of a camera. Higher QE and Lower read noise are needed to improve the SNR of an image. Here is the relative QE graph of ASI071. 6 ASI071 Manual Read noise includes pixel diode noise, circuit noise and ADC quantization error noise, and the lower the better. The Read Noise of the ASI071 cameras is extremely low when compared with traditional CCD cameras and it is even lower when the camera is used at a higher gain. Depending on your target, you can set the gain lower for higher dynamic range (longer exposure) or set the gain higher for lower noise (such as short exposure or lucky imaging). 7 5. Getting to know your camera ASI071 Manual 5.1 External View Tilt adjust screws 3 for push and 3 for pull Controllable Window Heater M42 Cover Protect and sealed window AR coated D42*2mm USB2.0 Hub Maglev fan Only on when cooler is turn on in software M42*0.75 Threads Heat Sink USB3.0 or USB2.0 IN Cooler Power LED Indicator Cooler power supply 5.5*2.1 DC socket 12V @3A or up AC-DC power supply suggested 8 5.2 Power consumption ASI071 Manual ASI071 has one APS-C format sensor, the max power consumption is around 500ma@5V which is nearly the maximum power supply of USB2.0. We recommend customer connect ASI071 through USB3.0 which can provide 1A@5V power. You also need a separate power supply to power the cooler. We recommend using a 12V/3-5A or more DC adapter for cooler power supply (2.1×5.5, center positive). Using a battery with 11-15V is also suitable for the cooler power supply. ASI071 and USB hub is powered from 12V DC power supply if you connect it. Here is a test result of the cooler power consumption of ASI071 camera. It only needs 0.5A to cool the camera to 30 below ambient. 5.2 DDR Buffer ASI071 Pro camera includes one 256MB DDR3 memory buffer to help data transfer more stable and no amp-glow issue which is caused by the slow speed data transfer during reading out under USB2.0 Port. DDR memory buffer is the main difference between ASI "Cool" and "Pro" cameras. 9 ASI071 Manual 5.3 Cooling system The ASI071 camera has a robust, regulated cooling system, which means that the camera sensor can be kept at the desired temperature throughout your imaging session. The super low readout noise, combined with efficient cooling and adjustable gain setting, allows you to do short or lucky DSO imaging unlike the traditional CCD cameras which need very long exposure for each frame. However, keep in mind that cooling won't help with very short exposure such as less than 100ms. Based on the testing result at 30 ambient temperature, the Delta T of can be 35~40. Please note that the Delta T might get down when the cooling system is working for long time. Also, as the ambient temperature falls, the Delta T would also decrease. Here is a dark current test result of ASI071 sensor at various temperatures. 5.4 Back focus distance The M42 female flange to the sensor is 17.5mm. You can reach 55mm back focus distance with the 21mm and 16.5mm extender included in the camera package. 5.5 Protect Window There is a protect window before the sensor of ASI071 camera. It's an AR-AR coated BK7 glass, diameter is 42mm and 2mm thick. 10 ASI071 Manual 5.6 Analog to Digital Converter (ADC) The ASI071 camera records in 14bit ADC. This camera also supports ROI (region of interest) imaging, and smaller ROI has faster fps. Here is the maximum speed of ASI071 running under USB2.0 and USB3.0. Resolution USB 2.0 14Bit ADC USB3.0 14Bit ADC 4944×3284 1920×1200 2.7fps 18.8fps 10fps 28fps 1280×1080 640×480 31.3fps 69.5fps 33fps 70fps 320×240 134.2fps 134fps 5.7 Binning The ASI071 camera supports hardware bin3 and software bin2, bin3 and bin4 mode. Hardware binning is supported by sensor but is done in digital domain like software binning and use 10bit ADC. The only advantage of hardware binning is faster fps (20fps). We recommend customer to use software binning if you don't need faster fps. Just set "hardware binning" on in software to enable hardware binning. 5.8 Tilt adjustment The alignment of sensor just like align the primary mirror of newtonian. There is 3 directions you can adjust, each direction have one push and pull screws. 11 ASI071 Manual 12 ASI071 Manual 6. How to use your camera There are many adapters available for this camera for connecting to your scope or lens. Some are included with the camera and others you can order from our official website: 1. 2"Filter (optional) 2. EOS-T2 adapter 3. M42 to M48 extender 16.5mm 4. M42 extender 21mm 5. Focal reducer 6. OAG(16.5mm thickness) 13 ASI071 Manual 7. Cleaning The camera is sealed and comes with an AR protect window to protect the sensor from dusts and humidity. We don't recommend customer to open the camera for cleaning. The dusts can be removed by post processing with flat frame. To see the dusts, you just need to set up your telescope and point it to a bright place. A Barlow is required to see these dusts clearly. Then attach the camera and adjust the exposure to make sure not overly exposed. You can see an image like below if it's dirty. 14 ASI071 Manual The big dim spot on the image (at right) are the shadows of dust on the protect window. The very small but very dark spot in the image (at left) are the shadows of the dusts on the sensor. The suggested way to clean them is try to blow them away with a manual air pump. To clean the dust on the sensor you will need to open the camera chamber. We have a very detailed instruction on our website: https://astronomy-imaging-camera.com/manuals/How_to_clean_ASI_camera_and_redry_the _desiccants_EN_V1.2.pdf 15 8. Mechanical drawing ASI071MC Pro ASI071 Manual 9. Servicing For software upgrades please refer to "Support-manual and software" on our official website. https://astronomy-imaging-camera.com/ For repairs and consultation: https://support.astronomy-imaging-camera.com/ For customers who bought the camera from your local dealer, dealer is responsible for the customer service. 10. Warranty We provide 2-year warranty for our products. We offer repair service or replacement for free if the camera doesn't work within warranty period. After the warranty period, we continue to provide repair support and service on a charged basis. This warranty does not apply to damage that occurred as a result of abuse or misuse, or caused by a fall or any other transportation failures after purchase. Customer must pay for shipping when shipping the camera back for repair or replacement. 16Microsoft Word 2019