Starlight Xpress Trius SX-16 Mono
 Starlight Xpress Trius SX-16 MonoStarlight Xpress Trius SX-16 Mono 

Starlight Xpress Trius SX-16 Mono

£2,525.00✓ 2 year warranty


In stock shipped 1-2 working days.

About this product

Model:  Trius-SX-16-Mono
Part Number:  Trius-SX-16-Mono

The Starlight Xpress Trius SX-16 offers 4,194,304 pixels of resolution. Each pixel is 7.4 x 7.4 uM in size. It features exceptionally low dark signal so no dark frames are necessary for most deep sky objects. The new 'Trius' version also adds a triple USB hub and Argon filled CCD chamber.

The Trius SX-16 is a departure from the normal SX line of Sony CCD based cameras. As Sony do not manufacture a large mono chip, we researched the available devices and decided that the Kodak KAI4022M was the best option for a new mono camera. To reduce the negative effects of the greater Kodak dark signal, we have used a two stage Peltier cooler for a 10 degree reduction in the CCD temperature, and a new high-speed USB2 interface circuit to greatly reduce the 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. We think that the result is a highly satisfactory mono camera which overcomes the lack of suitable Sony mono devices.


  • Large, high resolution Kodak CCD chip, with 4,194,304 x 7.4uM square pixels in a 15.15 x 15.15mm array.
  • Low dark signal - Dark frames not necessary for most of the brighter deep sky objects.
  • Triple output powered USB hub built-in for guider and wheel control etc.
  • Dual stage high performance cooler with -40C delta T
  • Dry Argon-filled CCD chamber for efficient cooling.
  • Anti-blooming with minimal effect on linearity and no lost active area.
  • Built-in super high speed USB 2.0 interface for approx. 2.5 second downloads.
  • High sensitivity, 55% QE at peak (green light).
  • Compact and lightweight - only 75mm in diameter x 100mm long - less than 500 grams load on the 'scope!


CCD typeKodak KAI4022M interline CCD with low dark current and vertical anti-blooming
CCD Full resolution pixel dataPixel size: 7.4uM x 7.4uM, Image format: 2048 x 2048 pixels
CCD Image area15.15mm (Horizontal) x 15.15mm (Vertical)
CCD qualityGrade 2 or better - No dead columns, no dead pixels
Spectral ResponseQE max at 540nM (~55%), 30% at 400nM and 660nM
Readout NoiseLess than 10 electrons RMS - typically ONLY 7 electrons!
Full-well capacityGreater than 40,000 e- (unbinned)
Anti-bloomingOverload margin greater than 100x
Dark currentDark frame saturation time greater than 10 hours. Less than 0.05 electrons/second @ + 10C ambient
Data format16 bits
System gain0.6 electrons per ADU
Computer InterfaceBuilt-in USB 2.0 compatible interface with 3 port USB 2 hub for peripheral devices
Image download timeTypically 2.5 seconds at full resolution using USB 2.0
Power requirements 
Cooling systemRegulated constant current cooling supply with two stage thermoelectric cooler to give a CCD temperature of approximately -40C below ambient
Size75 x 100mm 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. 400g

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