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Ultrastar C handbook Issue 1, August 2015

Barrel size

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31.75mm dia. x 85mm long (1.25 inch eyepiece push fit size)

Barrel thread

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25.4mm x 0.75mm ‘CS’ mount lens thread

Input connection -

‘Mini B’ USB socket for USB2.0

Output connection -

Standard RJ12 autoguider socket

Output type

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Opto-isolated 4 lines (N,S,E & W) pull down with common return line

Download rate

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Approx. 2 frames per second in binned 1x1 mode

Installing the Ultrastar C:

In most cases, the supplied CD will install the drivers and software for you. Just run the appropriate
‘Setup’ file for your operating system. However, be careful if you are using Windows XP, as the XP
drivers are not compatible with Windows 7 onwards. For XP, copy the XP drivers from the CD onto
your hard drive and then remove the CD. Run the driver installation from the files on your hard drive.
If you encounter any problems, you can download the latest drivers from our web page at
http://www.sxccd.com/support .

The SX Ultrastar C control software is UltrastarC.exe and will be installed from the CD setup program.
An icon will appear on your desktop and may be clicked on to start the program. Please note that this
requests an ‘ini’ file when first started, but just click ‘OK’ until you reach the main program window
and then open ‘Set Program Defaults’. Now just click ‘Save’ and the ini file will be created.
Alternatively, PHD2, Lodestar Live, AstroArt and MaximDL all support the Ultrastar C and may be
preferred.

Imaging with the Ultrastar C:

The Ultrastar C makes an excellent colour imaging camera, especially when used as a ‘Live View’
imager. This method involves stacking many short exposures to achieve a high sensitivity with simple
equipment. It is ideal for public outreach events, where the images can be seen ‘developing’ in real
time, and for field use where the compact size of the Ultrastar C makes for easy transport and setup.
The free software ‘Starlight Live’ (previously ‘Lodestar Live’) from Paul Shears, makes Live Viewing
very easy and is highly recommended. Starlight Live recognises the Ultrastar C automatically and all
that you need to do is to open the software and select ‘Live stacking’ and a suitable exposure time.

Summary of Contents for Ultrastar C

Page 1: ...of RJ12 connection and supplies 4 pull down direction lines and a common return Alternatively you may send the mount control signals via a serial connection from the guider control computer The Ultras...

Page 2: ...UltrastarC exe and will be installed from the CD setup program An icon will appear on your desktop and may be clicked on to start the program Please note that this requests an ini file when first star...

Page 3: ...If stars are visible Starlight Live will use these for registering the images together and the image clarity will steadily improve as the stack develops The image brightness and contrast may be manip...

Page 4: ...R lenses can be bought for as little as 20 pounds on Ebay and work very well with the Ultrastar C The correct focal distance for these lenses is about 45 mm so you will need a C to lens thread adaptor...

Page 5: ...Synthesise colour The default settings should work well Various other image processing functions are available from the menu bar and will be adequate for many general imaging purposes Many other imag...

Page 6: ...o C extension will be needed to permit a standard C lens to reach focus Lenses designed for CS mount cameras will focus without an extension tube but many of these lenses cannot fully illuminate a two...

Page 7: ...utoguider output The lines are isolated from the Ultrastar C electronics by opto coupler chips and so there is no risk of damage when connecting the outputs to mounts with unprotected electronics A st...

Page 8: ...s which you think will be approximately correct save the settings and open the View menu In this you will see an option called Max palette stretch Open this and check the Activate stretch display chec...

Page 9: ...star coordinates If they look good just click on OK Now click on Start Guiding After a brief delay the Guiding Info window will open as above and you will see the guide star along with error values an...

Page 10: ...st occasions To guide with PHD2 first press the camera icon and select the Starlight SXV option for the camera If you have more than one SX camera connected then choose Ultrastar C or SX 825 from the...

Page 11: ...on a suitable guide star in your last image and then select the Target icon PHD2 will set up a cursor and box on the guide star and proceed to calibrate the mount After about 1 minute of calibration i...

Page 12: ...kmanship in addition to any statutory Consumer Rights of Purchasers CONDITIONS OF GUARANTEE 1 The equipment shall only be used for normal purposes described in the standard operating instructions and...

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