background image

If you have already started the SharpCap software before connecting the camera, in order to open the camera, click on the
“camera” in the menu bar and then select the device.

Offset adjustment. When you completely block the camera (i.e., like taking a dark frame) you may find that the image is
not really zero. Sometimes this will reduce the quality of the image contrast. You can get a better dark field by adjusting
the offset. You can confirm this by opening the histogram as indicated in the figure below.

 

If you want to enter the 16-bit image mode, select the “RAW16” mode.

By selecting the “LX” mode you can expand the exposure setting range and take long exposures.

After cooling devices connected to the 12V power supply, the temperature control circuit will be activated. You can control
the CMOS temperature by adjusting the settings in the figure below. Basically, you can control the temperature of CMOS
by either adjusting “Cooler Power” or clicking “Auto” and setting “Target Temperature”. You can also see the CMOS
temperature at the lower-left corner of the software window.

ASCOM supported software (e.g. MDL)

With ASCOM drivers, you can use the device with many software packages that support the ASCOM standard. We will use
Maxim DL below as an example, but a similar procedure is used for The SkyX and other software packages supporting
ASCOM.

First make sure you have not only loaded the ASCOM drivers but that you have also downloaded and installed the ASCOM
platform from ASCOM. After both the drivers and platform are installed, start MAXIMDL. Follow the instructions shown
below to finish the setup. Then Click Connect in and enter the software.

Summary of Contents for QHY990

Page 1: ...GaAs sensor has a high dark current than Silicon based material If you are doing the long exposure with this camera eg exposure 5 sec QHYCCD recommends selecting the liquid cooling version Applications SWIR Astronomy Imaging and Photometry Daytime Star Observing Optical Communication Laser Optic Labs Specifications Model QHY990 QHY991 CMOS Sensor IMX990 SWIR Sensor IMX991 SWIR Sensor FPA Material ...

Page 2: ... Trig In Socket RCA type Opto isolated Computer Interface USB3 0 Lens Interface C Mount Telescope Interface 1 25inch Adapter Basic Interface Flange with 6 M3 screw holes 25mm Filter Adapter Support D 25mm and D 25 4mm filter Back Focal Length C_Mount 1 25inch adapter 17 5mm with 25mm filter adapter 14 5mm without filter adapter Basic Interface 12 5mm Cooling System Dual Stage TE Cooler Air Cooling...

Page 3: ......

Page 4: ...Mechanical Dimentions ...

Page 5: ......

Page 6: ...lens F2 8 1200 1800nm filter Gain 0 exposure time 1 3ms D0wnload 16bit FITs QHY990_DAYTIMEQHY990_DAYTIME QHY990 Sample image under sky at night With 16mmF1 4 SWIR lens F1 4 1200 1800nm filter Exposure 2sec stack 29frames 11C sensor temperature Dark frame calibrated ...

Page 7: ...Here are the stars in the daytime with QHY991 camera by Martin Miller ...

Page 8: ...Brief User Guide ...

Page 9: ...atible with those yet and has some of the latest optimized but experimental features The stable version is older than the beta version but more stable so it is recommended for beginners who are not using the latest products Don t let the camera connect to the computer during the All in one pack installation process connect it to the computer after all the installation is complete Input Voltage Req...

Page 10: ... to 10C The temperature of the CMOS sensor will drop quickly to this temperature approximately 2 3 minutes If you want to turn off cooling you can choose Stop If you just want to set the TEC power but not the temperature You can select Manual and then set the percentage of the TEC power You can use the preview tab to preview and use the focus tool to focus Then use the capture tab to capture the i...

Page 11: ... temperature control circuit will be activated You can control the CMOS temperature by adjusting the settings in the figure below Basically you can control the temperature of CMOS by either adjusting Cooler Power or clicking Auto and setting Target Temperature You can also see the CMOS temperature at the lower left corner of the software window ASCOM supported software e g MDL With ASCOM drivers y...

Page 12: ...N I N A Open N I N A Nighttime Imaging N Astronomy Drive connections via ASCOM ...

Page 13: ...that supports QHYCCD cameras with video broadcast function which can meet the needs of customers to send video images to other target software For example use sharpcap to connect a WDM enabled camera and the sharpcap display video image can be sent to other WDM supported software for display which is suitable for video online broadcast applications Installation Perform the AllInOne installation an...

Page 14: ...k that the image device name is QHYCCD BroadCast WDM Camera which means the installation is successful Activate the function Usually sharpcap is used to connect the camera as the broadcasting terminal After connecting the camera you need to turn on the Enable Live Broadcast switch to broadcast ...

Page 15: ...Common supporting software ie broadcast receiver includes UFOCAPTURE HANDYAVI QQ video functions etc AMcap test effect chart HANDYAVI test effect chart ...

Page 16: ...test renderings Precautions Currently only supports Windows system Currently the SDK does not support 16 bits for the time being RGB24 mode must be selected for color images otherwise the image will appear gridded ...

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