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Handbook for the TRIUS PRO-825C  Issue 1 September  2020 

‘Quick Starting’ your TRIUS PRO-825C system 

Please note, the TRIUS PRO-825C is the successor to the TRIUS SX-9C. The drivers 

and file formats are identical so within our software and other third party 

software, your PRO-825C camera will be identified as an H9C or SX-9C derivative.

 

In the shipping container you will find the following items: 

1)

The TRIUS PRO-825C camera head.

2)

A universal AC power supply module.

3)

A USB camera cable.

4)

An adaptor for 1.25” drawtubes, with a 1.25” filter thread.

5)

An adaptor for 2” drawtubes and M42 Pentax thread lenses.

6)

A guider output to guider port RJ12 lead.

7)

Two Mini to Mini USB 0.5m USB Cables

8)

Two Mini to Male B USB 0.5m USB Cables

9)

A 'Y' power lead for connecting the cooling fan.

10)

A USB stick with the TRIUS Colour Camera Control Software and the PRO 825C

manual.

You will also need a PC computer with Windows XP, Vista or Windows 7 installed. 

This machine must have at least one USB 2.0 port available and at least 256 Mbytes 

of memory. If you intend to view the finished images on its screen, then you will also 

need a graphics card capable of displaying an image with a minimum of 1024 x 768 

pixels and 24 bit colour. A medium specification Pentium with between 1GHz and 

4GHz processor speed is ideal, but I recommend avoiding some of the lower 

specification ‘Netbook’ computers, as they can’t really handle the fast data stream 

from the camera. Please note that USB 2.0 operates at a very high speed and cannot 

operate over very long cables. Five metres of good quality cable is the maximum 

normally possible without boosters or extra powered hubs, although you can 

sometimes get good results at longer distances with very high quality cables. 

Содержание 100-0052

Страница 1: ...ersion of 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 per...

Страница 2: ...y imaging especially with an H alpha filter The H alpha QE is about 50 considerably better than other interline chips and even greater than the popular KAF8300 CCD The full frame download time is appr...

Страница 3: ...ing fan 10 A USB stick with the TRIUS Colour Camera Control Software and the PRO 825C manual You will also need a PC computer with Windows XP Vista or Windows 7 installed This machine must have at lea...

Страница 4: ...that it contains this will initiate the self install software which will guide you through the process of installing the SX camera software onto your computer Now connect the USB cable to the socket...

Страница 5: ...stem devices will be displayed in a list see above If the installation is successful there will be a diamond shaped symbol labelled BlockIOClass and clicking on the sign will reveal it to be a Starlig...

Страница 6: ...s is the first time that it has been run you will receive a warning about the lack of an ini file just click on OK and then open Set program defaults from the File menu In the bottom right hand corner...

Страница 7: ...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 5C for stable cooling You can determi...

Страница 8: ...his 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 s...

Страница 9: ...he focus window has an adjustable contrast stretch controlled by the 12 16 bit slider The image will be normal if 16 bits is selected while setting lower values will increase the image brightness in i...

Страница 10: ...cing them Any processing of the image other than calibration with dark frames etc will distort the colour rendering of the result and so the conversion needs to be done before proceeding Important You...

Страница 11: ...provided by selecting this option but the best option is to use an infra red blocking filter when taking daylight shots see 5 below 2 Light Pollution Correction This option is for deep sky colour imag...

Страница 12: ...Colour conversion involves running a software routine which uses the brightness data from each pixel to generate colour values As the brightness of each pixel is related to the colour of light fallin...

Страница 13: ...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...

Страница 14: ...ng results in dark borders around well defined features and will increase the noise in an image to unacceptable levels but the Low Power filter is close to optimum and gives a nicely sharpened picture...

Страница 15: ...into the telescope drawtube you can adjust the focus until the view is sharply defined and the object of interest is close to the field centre On removing the eyepiece and fitting the CCD camera the C...

Страница 16: ...eved with the Meade converter and appropriate extension tube However moderate deviations from this focal length will not have a drastic effect and so any F ratio from about F4 5 to F6 3 will give good...

Страница 17: ...this can be used as an indication of the focus accuracy Although the peak value is sensitive to vibration and seeing it tends towards a maximum as the focus is optimised Carefully adjust the focus con...

Страница 18: ...y by using the focus frame and a short exposure of between 1 and 5 seconds The 12 16 bit slider in the focus frame allows you to adjust the image contrast if you find that the object is too faint with...

Страница 19: ...ignal generated during your exposure and it should be saved with your image for use in processing the picture If many such darks are recorded and averaged together the statistical noise will be reduce...

Страница 20: ...sb If you intend to subtract a dark frame select Merge and then Subtract Dark Frame Pick the appropriate dark frame and the software will then remove the dark signal from your image leaving it somewha...

Страница 21: ...is ideal Just use the Undo last filter function if necessary to correct a mistake Normal linear stretches can give a nice result on many objects but you may find that bright areas burn out badly with...

Страница 22: ...faint and relatively large so a short focal length and a long exposure are needed while planets are bright and very small needing long focal lengths and short exposures High resolution is critical to...

Страница 23: ...ve 220 Ignore the major peak near 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 hig...

Страница 24: ...radius and power tends to outline edges with dark or bright borders As a finishing touch the application of a Median filter or a Weighted Mean Low Pass filter can be useful to smooth out the high freq...

Страница 25: ...emove dark frame This is advisable with S S images as the slewing will mis register the images with a single dark frame that is applied to the finished sequence To use this option you will need a dark...

Страница 26: ...ven illumination of the telescope field This is surprisingly difficult to achieve and many designs of light source have appeared in the literature and on the Web These usually consist of a large woode...

Страница 27: ...artefacts and you can then process it in the normal way The TRIUS PRO 825C guider port The TRIUS PRO 825C is provided with a guide port for use with ST4 compatible mounts The Autoguider output port is...

Страница 28: ...e from Maplin or Radio Shack etc as tape head cleaning fluid Most pharmacist shops will have small bottles of pure acetone A bright light and a strong watchmakers eyeglass will also be found to be ess...

Страница 29: ...able plastic tubing are readily available from many car spares suppliers such as Halfords in the UK Two ports are provided in the sides of the CCD cavity and these may be accessed by unscrewing the re...

Страница 30: ...ks very well with the H9C http www stark labs com nebulosity html Some details of the camera and CCD characteristics The TRIUS PRO 825C uses a Sony ICX825AK EXview II progressive scan CCD with 1392 x...

Страница 31: ...of 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 w...

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