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Updated: 23/05/2018 

Opticstar PX-126.   © Opticstar Ltd, 2018 

Adding ASCOM  

Installing the ASCOM software enables the PX-126 to be used as an auto-guide camera. ASCOM support 
also  allows  the  PX-126  to  be  used  for  imaging  as  an  ASCOM  compliant  imaging  device.  There  are  three 
steps in adding ASCOM functionality: 
 

1.  Install the ASCOM software platform. 
2.  Install the PX-126 ASCOM camera driver for imaging support. 
3.  Install the PX-126 ASCOM ST4 driver for auto-guide support. 

 
 
The ASCOM software platform is freely available and can be downloaded at 

http://ascom-standards.org. 

Follow the 

instructions on the downloads section of the website on how to download and install it. 
 
Once the ASCOM platform has been installed, proceed to install ASCOM support for the PX-126, open the 

ASCOM

 

folder on the CD, run the following two installation programs: 

 

ASCOMOpticstarCamSetup.exe 

for PX-126 imaging support. 

 

ASCOMOpticstarST4Setup.exe 

for PX-126 ASCOM auto-guide support. 

 
 
It  is  recommended  that  the  installation  is  performed  with  Windows  administrator  permissions.  Right-click  on  the  file 
and from the pop up menu, select 

Run as administrator

. Follow the on-screen instructions to compete the installation 

of both programs. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Removing ASCOM  

ASCOM  compatibility  can  be 
removed  at  any  time.  In 
Windows 8.1 this can be done 
by 

right-clicking 

on 

the 

Windows 

Start

  button  on  the 

bottom  left  corner  of  the 
screen  and  on  the  popup 
menu  select 

Programs  and 

Features

.  

 
In  earlier  operating  systems 
click the 

Start

 button and then 

select 

Settings  >  Control 

Panel 

Add/Remove 

Programs

 
The  two  sets  of  PX-126  ASCOM  drivers  can  be  removed  one  at  a  time  by  right-clicking  on  each  driver  and  select 

Uninstall

Summary of Contents for PX-126

Page 1: ...1 Updated 23 05 2018 Opticstar PX 126 Opticstar Ltd 2018 ...

Page 2: ... a 1 year back to base warranty For after sales support please contact Opticstar at info opticstar com 1 Do not drop your camera as this can result in serious damage 2 Do not point the camera to a bright light source like the Sun without the appropriate filters as this will damage the sensor 3 Disconnect the camera from the computer when not in use 4 Treat the camera glass window with the same car...

Page 3: ...ising Data 10 Third Party Software 11 Adding DirectShow 11 Removing DirectShow 11 Adding ASCOM 12 Removing ASCOM 12 Imaging in DirectShow and ASCOM 13 SharpCap 13 Auto Guiding in DirectShow and ASCOM 13 PHD Guiding 2 13 Auto Guiding Components 14 Imaging and Auto Guiding with Two Telescopes 14 Imaging and Auto Guiding with a Single Telescope 15 Troubleshooting 16 USB Requirements 16 Express Card 1...

Page 4: ...ion PHD Guiding software is bundled with the camera that allows the PX 126 to be used as an auto guider Auto guiding is supported through the ASCOM software standard ensuring wide support by third party applications Package contents Opticstar PX 126 video camera C mount to 1 25 telescope adapter nosepiece USB cable Auto guide cable Setup Guide printed Software CD User Manual on CD this document So...

Page 5: ...on location and click the Install button The following window will display a progress bar during the installation Once the installation is complete the final installation window will display the Finish button If the option to Start OpticstarSky is ticked pressing the Finish button will start OpticstarSky Anti virus software may attempt to block the software installation In such cases the anti viru...

Page 6: ...ng devices node To access the Device Manager open the Windows Control Panel In Windows 8 1 this can be done by right clicking on the Windows Start button on the bottom left corner of the screen and on the popup menu select Device Manager In earlier operating systems click the Start button and then select Settings Control Panel The screen shot on the right hand side shows a successful installation ...

Page 7: ...on E and can be accessed from the new tab titled 0001 at the top of the image pane F Images are displayed and captured at the selected resolution C The screenshot on the right shows the graphics resolutions that can be selected The highest resolution is selected by default Captured images can be saved to disk from the File menu Capturing Video Video can be captured by clicking the Record button G ...

Page 8: ...hest quality resulting in larger video files on the disk The Key Frames Setting determines how frequently video frames are shown on the monitor while video is being captured on the hard disk If this value is set too high then the captured video will be slow and jerky In the final window it is possible to enter information to identify the video to be captured Exposure Time In astronomy the exposure...

Page 9: ...dark to 255 totally bright The vertical axis represents the number of pixels of a particular brightness If the Exposure Time and Gain values are not set appropriately the graphs will be clipped on the far left if exposure gain are too low or on the far right of the graph if the exposure gain are too high If all three RGB values are at zero this represents black If all three RGB values are at 255 t...

Page 10: ...all play a major role on the quality of the captured images These conditions can vary greatly between imaging sessions To minimize these undesirable effects we apply to the captured images a process called image stacking Stacking is the process of merging the data of many image frames into a single frame This operation applies mathematics to select the best parts of each frame and accumulate that ...

Page 11: ...rator permissions Right click on the file and from the pop up menu select Run as administrator Follow the instructions to compete the installation Sometimes it is necessary to re start the computer after the DirectShow installation The PX 126 will be identified as Opticstar by third party programs If it does not unplug the camera from the computer and restart the computer Once Windows has started ...

Page 12: ...M support for the PX 126 open the ASCOM folder on the CD run the following two installation programs ASCOMOpticstarCamSetup exe for PX 126 imaging support ASCOMOpticstarST4Setup exe for PX 126 ASCOM auto guide support It is recommended that the installation is performed with Windows administrator permissions Right click on the file and from the pop up menu select Run as administrator Follow the on...

Page 13: ...ting this option instructs SharpCap to use the ASCOM driver to communicate with the camera instead of the DirectShow driver Please note that OpticstarSky provides more functionality than SharpCap and is better suited for the PX 126 Auto Guiding in DirectShow and ASCOM This section demonstrates how the PX 126 can be used in third party programs as a DirectShow camera and as an ASCOM auto guide devi...

Page 14: ...ays you can guide a telescope but there are mainly two ways of doing so The most versatile method is to use two telescopes mounted on the same mount one for imaging and the second for guiding Alternatively you could use a single telescope to perform this function While the latter method is easier it will limit your choice of locating a suitable guide star Imaging and Auto Guiding with Two Telescop...

Page 15: ...ider 4 An auto guide ST 4 compatible mount i e EQ5 PRO EQ6 PRO etc 5 PC with USB2 0 or USB 3 0 ports running Windows XP Vista 7 8 10 6 The Opticstar PX 126 camera and software to be used as a guide camera 7 ASCOM software platform 8 Auto guiding software i e PHD Guiding 2 The following diagram demonstrates how the components listed above are assembled together into a complete imaging and auto guid...

Page 16: ...has USB1 1 ports you will need to obtain a PCI USB2 0 or USB3 0 type card if you have a desktop computer Likewise a laptop computer can be fitted with an Express USB2 0 or USB3 0 card The ExpressCard or equivalent alternative will need to be fully supported by your computer in some entry level laptops full ExpressCard support is not fully implemented If you have a desktop try both the USB ports on...

Page 17: ...Control Panel 1 Right click on the PX 126 entry 2 On the pop up menu and select Uninstall 3 If Windows asks to restart the computer click yes and continue When the computer restarts please re install the software as normal To re install the software please follow the instructions outlined at the start of this manual To uninstall the DirectShow and ASCOM software please refer to pages 11 and 12 res...

Page 18: ... registax Deep Sky Stacker http deepskystacker free fr These programs can be used to post process video files captured in OpticstarSky or other image capture software They can stack align and enhance video files or multiple images into a single high quality master image Microscope Attachments In order to use the camera with a microscope one or more attachments must be used The attachments shown fr...

Page 19: ...tomatic or Manual 0 4ms to 15 seconds Image Output USB 2 0 480 Mb s USB 3 0 compatible Power Requirements DC 5V over PC USB port Lens Mount C Mount Mounting Tube 23 2mm 1 25 Shutter type Electronic Mounting to telescope C to 1 25 adapter included Mounting to lens C to T thread M42x0 75 not included Mounting to microscope C to 23mm C to 30mm C to 30 5mm not included Dimensions 35mm diameter x 63mm ...

Page 20: ...20 Updated 23 05 2018 Opticstar PX 126 Opticstar Ltd 2018 ...

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