Sony ICX694 Medium Format Sensor
The Trius SX-694 monochrome CCD camera is fitted with the Sony EXview ICX694AL high resolution sensor, with an array of 2750 x 2200 (16 mm diagonal), 4.54 micron square pixels. This medium format Grade 1 or better CCD chip has a peak QE of 77% in yellow light, and 65% at 656nm. Anti-blooming on the ICX694 is very effective, with minimal effect on linearity and no lost active area. Its extremely low dark signal of less than 5 electrons RMS makes dark frames on most deep sky objects a thing of the past. In fact, read out noise is usually only 3 e-!
Starlight Xpress Trius Camera Body
Take a look at the rear of the Trius SX-694 and you will see three (3) mini USB ports! That’s enough to run a Lodestar or Superstar auto-guider and SX filter wheel. Other ports on the rear of the SX Trius camera include a USB port, a Guider port, and a 12V plug. Single cable control and fast download times of approximately 5 seconds at full resolution is achieved via the high speed USB 2.0 interface. A USB cable is supplied in the SX-694 package, as is a 115VAC power supply.
The Starlight Xpress Trius SX-694 includes a regulated set-point cooling supply with two-stage thermoelectric cooler that supplies a minimum CCD temperature of approximately -40C below ambient. The SX Cooling Enhancer Fan, included with all Trius cameras, adds extra cooling power when the night air is still and air is not circulating very well.
The CCD chamber of the SX Trius camera is Argon-purged to keep moisture from forming on the inside of the window. The window itself is made of fused silica, which offers better heat transfer properties than regular glass. This feature keeps the outside of the sensor window from gathering moisture. It is proven that a dryer window, both inside and out, makes for a happier astro-imager!
The Trius body is rugged and extremely compact, with a diameter and length of less than 3”. It is also light weight at just 14.1 ounces. The back focus is approximately 17 mm (+/- 1 mm).