Starlight Xpress TRIUS 825 Mono and Colour CCD Camera

We are pleased to announce the two new additions to the Trius family,the Trius SX-825 and the Trius SX-825C.

A key feature of the new cameras design is the introduction of the new ICX825 ExView2 CCD from Sony (with 1.447.680 x 6.45uM pixels in a 9
x 6.7mm array.) with an amazing 77% QE and ultra-low dark current, which means that dark frames are now totally redundant, especially with the amazing -55C (below ambient) cooling.

It also means that the camera has no need of heavy cooling fins, or water-cooling pipes and mess.

With very high QE, including very high Ha QE, and ultra low noise the TRIUS 825 is one of the most sensitive camera's available to amateur astronomers and with its 6.45 micron pixels is a genuine dual purpose camera capable of taking sharp images with small refractors but equally at home when used with larger aperture much longer focal length telescopes.

With the Argon filled CCD chamber and built-in USB2.0 3-port hub, this is truly an outstanding astronomy camera.

The Trius SX-825 is available now.

Technical Specs:

Sensor Type CCD - Sony ICX825
Horizontal Resolution 1392 pixels
Vertical Resolution 1040 pixels
Pixel Size 6.45 µM x 6.45 µM
ADC 16 bit
Cooing - -50 Degrees C below Ambient
Back Focus - 17.5mm


Starlight Xpress TRIUS Range of CCD Camera's

Starlight Xpress has always been renowned for small, compact, innovative designs, along with excellent build quality.

The new Trius range of deep-sky, cooled CCD cameras has just taken these values to a whole new level.

In addition to the already super low-noise performance of the previous generations of SXV, SXVF, & SXVR cameras, the new Trius range is even better, whilst still offering fast download times of approximately 2 million pixels per second.

Remarkably, SX have also managed to incorporate a complete powered USB hub into the main camera, which offers 3 x USB 2.0 ports at the rear of the camera. Each port is capable of delivering up to 200mA, thus able to drive a Lodestar, SuperStar or CoStar for guiding leaving another two USB ports for a USB filter wheel and one other peripheral.

This integration greatly reduces the number of cable trails back to the computer and gives less potential for cables tangling around the mount during your imaging session.

New Peltier cooler combinations have been designed into the Trius cameras, along with an Argon-Filled CCD chamber, allowing a greater differential cooling delta to be achieved.


The latest range of cameras from Starlight Xpress
USB hub sockets
+12v DC Power Input (+ve centre)
USB2.0 Socket
Autoguider Port
Internal Cooling
Fan Rear Camera Panel
The Trius camera provides multiple inputs and outputs. The main control connections to the camera are the USB2.0 socket that controls the
camera from the computer and the +12v DC jack socket which provides power (approximately 1.25Amps at 12v DC). In addition, there is an RJ11
Guider Port output that is opto-isolated and will drive any standard activelow guider input via the RJ11 ‘telephone’ lead provided. The remaining
sockets are three Mini-5pin USB2.0 sockets that can be used to power up to three different USB devices, such as a Lodestar Autoguider, an SX
USB Filter Wheel and a focuser. Each USB port is capable of providing 5v DC at a maximum of 200mA.

Fused Silica Window
Unlike less expensive cameras, SX fit a specially manufactured fused silica window, with a 7 layer anti-reflective coating, to all of their
Trius cameras. This offers exceptional strength and heat transfer characteristics to ensure there is less chance of dewing of the front window during humid weather.

Efficient Cooling System
The cooling system is designed for the most efficient cooling possible in a small compact package. The Trius cameras are fitted with a new peltier cooler configuration to give approximately -40C delta T. A built in fan at the rear of the camera draws air in through small holes in the front of the barrel (which increases the surface area to aid the convection), through the heatsink where all the heat is generated, and expels it out of the rear of the camera. An additional fan is fitted to the side, just to help keep the
external body at the ambient temperature during warmer weather. SetPoint Cooling as standard.

Argon Filled CCD Chamber

Argon filled CCD chambers are normally only associated with really highend cameras; the new Trius cameras have dry argon injected into the
CCD chamber to ensure there is no moisture to condense on the CCD during the cooling process. The low thermal conductivity of argon also helps with the cooling process, allowing a lower delta T to be achieved.

Unique Tilted Camera Front

This unique approach to camera design allows the front plate of the camera to be orthogonally aligned to ensure that the CCD and the optics are parallel to each other. This enables the user to adjust for any collimation issues throughout the whole optical train, to ensure pinpoint
stars across the entire field.

Starlight Xpress TRIUS Bundle Options

These Bundles represent great value for money.

The bundle includes a TRIUS CCD Camera with Lodestar X2 Autoguider and 5 Position USB Mini WHeel with inbuilt Off Axis Guider.

A complete self guiding solution at an excellent cost.

Starlight Xpress TRIUS SX-694 Mono And Colour CCD Camera

This is the replacement for the SXVR-H694 camera and features the same ultra low noise high resolution and high QE Sony Sensor.

Specifications as follows

Mega Pixels: 6.1m
CCD Size: 12.5x10mm
No of Pixels/Size: 2750x2200/4.54um
Download Time: 3.5 secs
Read Noise: 4.5e
Size/Diameter: 75x70mm
QE: 77%
Weight: 0.45kg
Full Well Depth: 20k
Data Format: 16 bit

Starlight Xpress TRIUS 694 Package with Filter Wheel and Baader Filters

TRIUS 694 CCD Camera with Xagyl 5 Position or 8 Position Ultra Slim Filter Wheel or SX 7 Position filter wheel and Baader Filters

Starlight Xpress TRIUS SX-814 Mono and Colour CCD Camera

This is the replacement for the SXVR-H814 camera and features the same ultra low noise high resolution and high QE Sony Sensor.

Specifications as follows

Mega Pixels: 9.2m
CCD Size: 12.5x10mm
No of Pixels/Size: 3388x2712/3.69um
Download Time: 5.0 secs
Read Noise: 4.5e
Size/Diameter: 75x70mm
QE: 77%
Weight: 0.45kg
Full Well Depth: 20k
Data Format: 16 bit

Starlight Xpress TRIS 814 with Filter Wheel and Baader Filters Package

Starlight XPress TRIUS 814 CCD Camera with Xagyl 5 or 8 Position or Starlight 7 Position USB Filter Wheels and Baader Filters.

Starlight Xpress TRIUS SX-9 Mono and Colour CCD Camera

Based on the Sony 285 sensor the SX-9 is the replacement for the previous SXVR-H9 CCD Camera and features the following specifications.

Mega Pixels: 1.45
CCD Size: 9x6.7mm
No of Pixels/Size: 1392x1040/6.45um
Download Time: 0.6 Secs
Read Noise: 4.5e
Size/Diameter: 75x70mm
QE: 68%
Weight: 0.45kg
Full Well Depth: 23k
Data Format: 16 bit


Starlight XpressTRIUS SX-9 CCD Camera with Xagyl Filter Wheel Package

Starlight Xpress TRIUS SX-9 CCD Camera with Xagyl 5 position USB Superslim Filter Wheel and Baader 1.25" LRGB Filters

This filter wheel comprises an Ultra slim motorized filter wheel - only 0.7" thick!

USB controlled and powered - no additional power supply required

No motors protruding from the filter wheel to get in the way.

Measuring only 4.5" x 4.75" x 0.7", this is one of the smallest, thinnest motorized filter wheels on the market.

Only adds 19mm of back focus to the optical path when used with included adapters.

Runs via Included ASCOM driver in ASCOM compatible CCD Capture Programs


Starlight Xpress TRIUS SX-35 Large Format CCD Camera

The Trius SX35 and SX36 cameras are the largest in the SX line of Truesense CCD based imagers. We have used an improved two stage Peltier cooler for efficient CCD cooling, and a high-speed USB2 interface circuit for a short download time. The fast download minimises the visibility of bias frame artefacts, such as hot columns and the top to bottom gradient that is commonly seen on such chips. The camera shown on this page is the SX36, as both versions have a closely similar appearance.

Major features:
Large, high resolution Kodak CCD chip, with 10,838,016 x 9uM square pixels in a 36.3 x 24.2mm array.
Low dark signal - Dark frames not necessary for most of the brighter deep sky objects.
Anti-blooming with minimal effect on linearity and no lost active area.
Built-in super high speed USB 2.0 interface for approx. 7 second downloads.
High sensitivity, approx. 51% QE at peak (green light), 31% at H alpha.
Back focal distance 17mm +/-1mm.
Built-in three port USB hub, compatible with many USB accessories (Lodestar, SX filter wheel etc)
Single USB cable control for all features - get rid of that dangerous cable tangle!
Only ONE computer needed to control all of the devices and functions
Very low power consumption. Less than 1.5 amps at 12v DC - 18VA at 110v or 240v AC
Compact and lightweight - only 118mm in diameter x 102mm long - less than 850 grams load on the telescope.
72 x 1mm input thread, compatible with Takahashi FSQ106 etc.

Technical Specs:

Detailed specifications:

CCD type: Truesense KAI11002M interline CCD with low dark current and vertical anti-blooming.
CCD Full resolution Pixel data: Pixel size: 9uM x 9uM, Image format: 4032 x 2688 pixels
CCD Image area: 36.3mm (Horizontal) x 24.2mm (Vertical).
CCD quality: Grade 2 as standard.
Spectral Response: QE max at 540nM (~51%), 30% at 400nM and 660nM.
Readout Noise: Less than 15 electrons RMS - typically only 12 electrons.
Full-well capacity: Greater than 50,000 e- (unbinned)
Anti-blooming: Overload margin greater than 1000x.
Dark current: Dark frame saturation time greater than 10 hours. Less than 0.08 electrons/second @ -20C CCD temperature.
Data format: 16 bits.
System gain: 0.9 electrons per ADU
Computer Interface: Built-in USB 2.0 compatible interface.
Image download time: Typically 7 seconds at full resolution using USB 2.0.
Power requirements: 115VAC / 240VAC @ 12VA, or 12VDC @ 1.5A max.
Cooling system: Regulated constant current cooling supply with two stage thermoelectric cooler to give a CCD temperature of approximately -37C below ambient.
Size: 98 x 100mm black anodised aluminium barrel with 72 x 1mm 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.
Weight: approx. 810g.

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