Starlight Xpress TRIUS PRO 694 Handbook Download Page 19

Handbook for the TRIUS PRO 694      Issue 19th April 2019 

 

 

19 

 

The ports are sealed by M4 stainless set-screws and soft plugs, which may be 

removed to provide access to the chamber gas fill. You will need to make some kind 

of nozzle to fit the gas ports, but simply tapering the end of the standard 4 mm 

plastic gas tubing that is used with small welding bottles, will probably be sufficient. 

To recharge the chamber, first remove both gas plugs and then insert the tapered 

end of the argon cylinder tube into one port. Gently turn on the argon supply for 

about 10 seconds and then refit the plug into the output port. The filling tube may 

then be extracted and the second port re-sealed. 

N.B. DO NOT leave the camera cooling 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 pins when the power is removed. If 

substantial amounts of moisture are seen, dismantle the camera and dry it 

thoroughly. 
 

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Alternative Software 

Although we hope that you will be pleased with our Starlight Vision software, other 

companies are offering alternative programs with powerful image processing 

functions. One of these is programs is ‘AstroArt’ by MSB software. You can purchase 

AstroArt from many dealers Worldwide and more information may be obtained from 

their web site at 

http://www.msb-astroart.com

 

‘Maxim DL’ is another popular choice and you can find out more by visiting 

http://www.cyanogen.com

 

‘Nebulosity 4’ also works very well with SX cameras.  

http://www.stark-labs.com/nebulosity.html

 

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Summary of Contents for TRIUS PRO 694

Page 1: ...b with 3 external ports and a dry argon CCD chamber fill The USB hub permits several other devices to share the single USB connection and greatly reduces the number of cables required in a typical set...

Page 2: ...p sky imaging especially with an H alpha filter The H alpha QE is about 65 considerably better than many other interline chips The full frame download time is only around 2 5 seconds and a binned 4x4...

Page 3: ...024 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 over very long...

Page 4: ...4 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 looki...

Page 5: ...t the top right hand side of the panel I recommend using the set point to about 10C for general imaging but you can go much colder especially if you are imaging during the winter months Under indoor c...

Page 6: ...is introduces additional complications which are best avoided at this early stage There are two simple options one of which is available to everyone with a sheet of aluminium baking foil 1 Attach a st...

Page 7: ...ise focus problems and keep the light level reasonable for daytime testing The pin hole needs no such adjustments and will work immediately although somewhat fuzzily Point the camera lens or pinhole t...

Page 8: ...age to darken 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 tur...

Page 9: ...ld stop is located at the same distance from the barrel end as the CCD is from the camera barrel end approximately 16mm When the par focal eyepiece is fitted into the telescope drawtube you can adjust...

Page 10: ...fect and so any F ratio from about F4 5 to F6 3 will give good results It is clear from this result that the Starizona Hyperstar adaptor is very well suited to use with the 694 as it operates at aroun...

Page 11: ...arrow parallel rods across the telescope aperture These make the point of precise focus easier to determine by creating double images or bright diffraction spikes around stars which merge at the setti...

Page 12: ...gth as that of the light frame This image will be a picture of the dark signal generated during your exposure and it should be saved with your image for use in processing the picture If many such dark...

Page 13: ...the colour data will be destroyed Although I have concentrated on the use of a telescope for deep sky imaging do not forget that you have the option of using an ordinary camera lens for impressive wid...

Page 14: ...hat you uncheck Autosave when finished or you will save every image that you take The exposure time needed for good planetary images is such that the image histogram has a peak value at around 40 000...

Page 15: ...lens If you really do need to use a flat field for image correction then it must be taken with care It is most important that the optical system MUST NOT be disturbed between taking your original ima...

Page 16: ...e original artefacts and you can then process it in the normal way The TRIUS PRO guider port The TRIUS PRO is provided with a guide port for use with ST4 compatible mounts The Autoguider output port i...

Page 17: ...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 this aspect of maint...

Page 18: ...ive action DO NOT rub vigorously and be very careful to avoid scratching the window Finish off by giving the CCD a short blast from an air cannon 6 Before re assembly make certain that the inside surf...

Page 19: ...leave the camera cooling 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 p...

Page 20: ...e imager CCD size Active area 12 5mm x 10mm CCD pixels 2750 x 2200 pixel array Each pixel is 4 54 x 4 54uM square Well depth Full res mode 17 000e Binned 2x2 mode approx 22 000e Mean visual QE 70 77 a...

Page 21: ...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 where the equipment is used 2...

Page 22: ...Handbook for the TRIUS PRO 694 Issue 19th April 2019 22...

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