For expert technical support call:  +44 (0) 1392 791 001  or email: Powered by First Light Optics +44 (0) 1392 791 001
Starlight Xpress Blue Edition Trius PRO 694 Mono CCD Camera
Starlight Xpress Blue Edition Trius PRO 694 Mono CCD CameraStarlight Xpress Blue Edition Trius PRO 694 Mono CCD CameraStarlight Xpress Blue Edition Trius PRO 694 Mono CCD Camera

Starlight Xpress Blue Edition Trius PRO 694 Mono CCD Camera

Now: £1,866.00 (Save:  £233.00) Was:  £2,099.00
  (1 Review)
✓ 2 year warranty


In stock shipped 1-2 working days.

About this product

Model:  Trius-SX-694-PRO-Mono
Part Number:  100-0055

The TRIUS range of cameras was introduced in 2014. These were the first cameras on the market to incorporate a powered USB 2.0 hub in the rear of the camera to enable the user to connect their USB filter wheel and guide camera directly to the camera rather than multiple cables back to the computer - simplicity and convenience.

The new Blue Edition TRIUS PRO series follows on from that success. We have redesigned the electronics to give even lower read-noise figures and faster downloads. With the Sony CCD cameras, we are now getting read-noise figures that are better than CMOS cameras (when used at unity gain), along with 16bit data and significantly better dark-noise figure thanks to the impressive cooling. Dark frames really are a thing of the past, making calibration frames optional rather than compulsory, giving you more time to capture data and process your images.


  • Medium format, high resolution 'Exview' CCD chip, with 6,050,000 x 4.54uM square pixels in a 15.98mm diagonal array.
  • Exceptionally low dark signal - No dark frames necessary for most deep sky objects.
  • Excellent QE of 77% peak in yellow light, 65% at Hydrogen alpha (656 nm).
  • Three port powered USB hub built-in. Can drive a Lodestar or Superstar guider + SX filter wheel.
  • High performance two stage cooling for better than -40C delta T
  • Dry Argon CCD chamber fill for improved cooling performance.
  • Exceptionally effective anti-blooming with minimal effect on linearity and no lost active area.
  • High speed USB 2.0 interface for approx. 5 second downloads.
  • Built-in triple powered USB hub for guider and filter wheel control.
  • Single USB cable control for all features - get rid of that dangerous cable tangle!
  • Very low power consumption. Less than 1.5 amps at 12v DC.
  • Compact and lightweight - only 75mm in diameter x 70mm long - less than 500 grams load on the telescope.


CCD typeICX694AL Exview CCD with ultra low dark current and vertical anti-blooming
CCD Full resolution pixel dataPixel size: 4.54uM x 4.54uM, Image format: 2750 x 2200 pixels
CCD Image area12.5mm (Horizontal) x 10mm (Vertical)
CCD qualityGrade 1 or better - No bad columns, no dead pixels, no more than 50 'hot' pixels (saturated in <10 seconds)
Spectral ResponseQE max at 580nM (~77%), 50% roll-off at 360nM and 770nM
Readout Noise3  electrons RMS (at unity)
Full-well capacityGreater than 17,000 e- (unbinned)
Anti-bloomingOverload margin greater than 800x
Dark currentLess than 0.002 electrons/second @ - 10C CCD temperature
Data format16 bits
System gain0.3 electrons per ADU
Computer InterfaceBuilt-in USB 2.0 compatible interface
Image download timeTypically 2.5 seconds at full resolution
Power requirements115VAC / 240VAC @ 12VA, or 12VDC @ 900mA max
Cooling systemRegulated set-point cooling supply with thermoelectric cooler to give a minimum CCD temperature of approximately -45C below ambient
Size75 x 70mm black anodised aluminium barrel with 42mm 'T2' thread at the CCD window end & input/output plugs at rear. CCD alignment screws are provided for setting the chip parallel to the focal plane
Weightapprox. 450g

Customer reviews

Average Rating (1 Review):  
Write a Review and share your opinions!

Rating (max 5):  
truis pro first light
Tuesday, 23 July 2019  | 

I decided to upgrade to this camera after years of using the Kodak8300 and trials with ASI1600MMC. Service from FLO was as good as ever and well boxed with quick deliver direct from SX.
I have only given it 4 stars as the drivers are a right pain to install and will not work on a USB3 port. Painful as many modern PC's don;t have USB2 any more so I have to buy a USB2 card for my master PC.. Yes this is a USB2 camera but surely the drivers should be designed to run on a USB3 port as well!!

Anyway after it installs the camera is a real treat to use. Very low (almost non existent) noise and no saturated hot pixels after 15 seconds at minus 20C
Narrow band sensitivity is great especially Sii - exceeds everything else I have ever tried.
The master advantage is that you do not need dark frames as the noise is so low that darks would only add to the overall noise. A single bad pixel map; flats and BIAS do the job just fine.
I am using this on Edge HD800 with 0.7 reducer and can get full narrowband image of the Wizard Nebula in 2hrs15mins (could easily shorten that as this was equivalent to about 4hrs of data with the ASI1600

Clusters are even easier with a single 10 minute exposure in each channel being more than enough for a quality image of C16 (BTW even at 10 mins there are very few hot pixels and only 2 saturated

If you are looking to upgrade this is definitely the camera to have


Please fill in the form below to ask a question.

Related Products
Starlight Xpress Lodestar X2 Autoguider
Starlight Xpress USB Filter Wheel