Starlight Xpress TRIUS PRO 694C Manual Download Page 4 | Manualshive

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Handbook for the TRIUS PRO-694C Issue 1 September 2020

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Now connect the USB cable to the socket on the camera rear panel.

Windows will report ‘Found new hardware’ and will automatically find the drivers.

You can check this by opening ‘Device Manager’ and looking for a ‘Starlight Xpress

CCD’ in the USB Devices list.

Now connect up the power supply and switch it on. The supply is a very efficient

‘switch mode’ unit, which can operate from either 110v or 220v AC, via an

appropriate mains power cable (supplied). You can now start the software by

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Summary of Contents for TRIUS PRO 694C

Page 1: ...the original TRIUS main board and has both improved read noise and faster download time It features an internal USB hub with 3 external ports and a dry argon CCD chamber fill The USB hub permits sever...

Page 2: ...imaging especially with an H alpha filter The H alpha QE is about 65 considerably better than other interline chips and even greater than the popular KAF8300 CCD The full frame download time is appro...

Page 3: ...minimum of 1024 x 768 pixels and 24 bit colour A medium specification i7 machine is ideal but most modern computers are OK Please note that USB 2 0 operates at a very high speed and cannot operate ove...

Page 4: ...ill automatically find the drivers You can check this by opening Device Manager and looking for a Starlight Xpress CCD in the USB Devices list Now connect up the power supply and switch it on The supp...

Page 5: ...ou can go much colder especially if you are imaging during the winter months Under indoor conditions the low airflow will limit the cooling capability and you should use a set point of no lower than 1...

Page 6: ...oject an image onto the CCD surface You could use your telescope but this introduces additional complications which are best avoided at this early stage There are two simple options one of which is av...

Page 7: ...o the smallest aperture number possible usually F22 as this will minimise focus problems and keep the light level reasonable for daytime testing The pin hole needs no such adjustments and will work im...

Page 8: ...rken 3 If the USB did not initialise properly the camera start up screen will tell you that the connection is defective Try switching off the power supply and unplugging the USB cable Now turn the pow...

Page 9: ...s out the colour information All images that you intend to colour convert must be taken in binned 1x1 mode Also please note that you cannot sum frames together before colour conversion This must be do...

Page 10: ...r noise 4 Apply Anti Alias Runs a special filter over the colour data to remove coloured artefacts around sharp edges This is especially useful for cleaning up erratically coloured star images 5 IR Fi...

Page 11: ...ure we can translate this into true colour data It is very important that the software knows the colour filter positions or the colours will be translated incorrectly so the software allows the user t...

Page 12: ...saturation parts of the image Just move the sliders by small amounts in the clear area below the main peak until the background is nicely balanced In some cases the histograms may all start a long way...

Page 13: ...tware Astronomical Imaging with the TRIUS PRO 694C 1 Getting the image onto the CCD It is fairly easy to find the correct focus setting for the camera when using a standard SLR lens but quite a differ...

Page 14: ...mmend it from personal experience It does not require a yellow filter for aberration correction unlike some other designs so it can also be used for tri colour imaging If you use a focal reducer using...

Page 15: ...select the SXV camera interface File menu Set the camera mode to Binned 1x1 and select an exposure time of 1 second Press Take Picture and wait for the image to download There is a good chance that yo...

Page 16: ...If so you are now in a position to take a moderately long exposure of some interesting deep sky astronomical object I will deal with planets later As most drives are not very accurate beyond a minute...

Page 17: ...acting a dark frame can actually INCREASE the noise in your images This is because the statistical noise of the dark frame can exceed the pattern noise from warm pixels and hence add to that of the su...

Page 18: ...umns or shadings that are created during readout To record a bias frame cover the camera aperture and take a 1000th of a second exposure If you take at least 10 such frames and average them together t...

Page 19: ...ackground due to light pollution so it is now time to process the luminance brightness and contrast of the image to get the best visual appearance First use the Normal contrast stretch to darken the b...

Page 20: ...to use a Non linear stretch to compress the brighter regions while expanding the faint data Here is the result of a non linear stretch on the M42 image The image now looks quite impressive and I hope...

Page 21: ...tures of the planets Planetary imaging is in many ways quite different from deep sky imaging Most deep sky objects are faint and relatively large so a short focal length and a long exposure are needed...

Page 22: ...r zero due to the dark background If you use too short an exposure time the image noise level will be increased and if too long a time is used you will saturate the highlights and cause white patches...

Page 23: ...ary images together to improve the signal to noise ratio In this case the averaging option should always be used or the result is likely to exceed the dynamic range of the software and saturate the hi...

Page 24: ...poses but it will often provide more resolution than the optical system or the seeing allows Binned 2x2 mode sums groups of 4 pixels into one output pixel thus creating a pixel image with 4 times the...

Page 25: ...ng and water resistant and can be easily replaced if damaged Stretch a piece of the film loosely across the aperture of your telescope and point the instrument high in the sky to avoid any gradient in...

Page 26: ...ore obvious There is no great difficulty in removing such particles on the outside surface by the careful use of a lens cleaning cloth lens pen or air duster and so you should have little trouble with...

Page 27: ...T rub vigorously and be very careful to avoid scratching the window 6 Before re assembly make certain that the inside surface of the front window is also clean and then carefully replace the camera fr...

Page 28: ...DO NOT leave the camera switched on for long periods between uses The cold CCD will collect ice by slow diffusion through any small leaks and this will become corrosive water on the cooler and CCD pin...

Page 29: ...Sony ICX695ALG EXview interline imager CCD size Active area 12 48mm x 9 98mm CCD pixels 2750 x 2200 pixel array Each pixel is 4 54 x 4 54uM square Bayer Matrix RGBG primary colour Well depth Full res...

Page 30: ...f Purchasers CONDITIONS OF GUARANTEE 1 The equipment shall only be used for normal purposes described in the standard operating instructions and within the relevant safety standards of the country whe...

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