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Starlight Xpress

Starlight Xpress Trius SX-26 USB Hub Color CCD Camera System, Sony ICX493AQA SuperHAD CCD, Built-in USB 2.0

SKU: SXTSX26C MFR: TRIUSSX-26C
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$3,300.00
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About the Starlight Xpress SX-26C

The Starlight Xpress Trius SX-26 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 active low 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.

Unlike less expensive cameras, Starlight Xpress fits 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.

The cooling system is designed for the most efficient cooling possible in a small compact package. The Trius SX-26 cameras is fitted with a new peltier cooler configuration to give approximately -40deg.C 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. Set-Point Cooling as standard.

Argon filled CCD chambers are normally only associated with really high-end 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.

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 SX-26C Features

  • Very large, high resolution 'SuperHAD' CCD chip, with 10,202,400 x 6.05uM square pixels in a 23.4 x 15.6mm array
  • Single-shot color, using a Bayer matrix of R, G and B on-chip filters. No filter wheel required
  • Triple USB hub for accessories, built-in
  • High performance two stage cooler for better than -35 C chip temperature reduction
  • Dry Argon chamber fill for improved cooling performance
  • Exceptionally low dark signal - No dark frames necessary for most deep sky objects
  • Exceptionally effective anti-blooming with minimal effect on linearity and no lost active area
  • High sensitivity, equivalent to 55% QE at peak of green filters
  • Back focal length 17mm +/-1mm
  • Built-in super high speed USB 2.0 interface for approx. 10 second downloads
  • Built-in autoguider output
  • 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

Starlight Xpress SX-26C Specifications

CCD type Sony ICX493AQA SuperHAD CCD with ultra low dark current, Bayer RGB matrix and vertical anti-blooming
CCD Full resolution Pixel data Pixel size: 6.05uM x 6.05uM, Image format: 3900 x 2616 pixels
CCD Image area 23.4mm (Horizontal) x 15.6mm (Vertical)
CCD quality Grade 1 or better - No bad columns, no dead pixels, no more than 50 'hot' pixels (saturated in <10 seconds)
Spectral Response QE max at 540nM (-55%), 50% roll-off at 400nM and 650nM
Readout Noise Less than 9 electrons RMS - typically ONLY 7 electrons!
Full-well capacity Greater than 25,000 e- (unbinned)
Anti-blooming Overload margin greater than 800x
Dark current Dark frame saturation time greater than 100 hours. Less than 0.02 electrons/second at + 10C ambient
Data format 16 bits
System gain 0.3 electrons per ADU
Computer Interface Built-in USB 2.0 compatible interface and triple output USB hub
Image download time Typically 10 seconds at full resolution
Power requirements 115VAC / 240VAC at 12VA, or 12VDC at 1.5 A max
Cooling system Regulated set-point cooling supply with two stage thermoelectric cooler to give a minimum CCD temperature of approximately -35C below ambient
Dimensions 75 x 70mm (2.95 x 2.75") black anodized aluminium barrel with 42mm (1.65") '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
Weight 400 g / 14.10 oz
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