Starlight Xpress SXVR H18 Mono (KAF8300) + cooling enhancer Major features: - Large, high resolution Kodak CCD chip, with 8,300,000 x 5.4uM square pixels in a 17.96 x 13.52mm array. - Very good H-alpha sensitivity (48% QE at 656nM). - Low dark signal - Dark frames not necessary for most of the brighter deep sky objects. - Anti-blooming with minimal effect on linearity. - High sensitivity, 56% QE at peak (540nM - green light). - Fused quartz optical window for good thermal and optical performance. - Fast, low vibration electric shutter. Latency less than 0.05 seconds. - Back focal distance 23mm +/-1mm. - Fast, low vibration electric shutter. Latency less than 0.05 seconds. - Fully user adjustable chip alignment for perfect focus across the entire field. - Built-in super high speed USB 2.0 interface for approx. 4.5 second downloads. - Built-in autoguider interface and output - compatible with the optional dedicated external guide camera. - Built-in dual serial ports for accessory control - directly drive filter wheels, GOTO 'scopes 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 1.0 amps at 12v DC - 12VA at 110v or 240v AC. - Compact and lightweight - only 75mm in diameter x 70mm long - less than 500 grams load on the 'scope! Specifications: - CCD type: Kodak KAF8300M full frame CCD with low dark current and lateral anti-blooming. - CCD Full resolution Pixel data: Pixel size: 5.4uM x 5.4uM, Image format: 3326 x 2504 pixels - CCD Image area: 17.96mm (Horizontal) x 13.52mm (Vertical). - CCD quality: Standard grade - No dead columns, no dead pixels. - Spectral Response: QE max at 540nM (~56%), 48% at 470nM and 656nM. - Readout Noise: Less than 8 electrons RMS - typically only 6.5 electrons. - Full-well capacity: Greater than 25,000 e- (unbinned) - Anti-blooming: Overload margin greater than 100x. - Dark current: Dark frame saturation time greater than 10 hours. Less than 0.05 electrons/second @ + 10C ambient. - Data format: 16 bits. - System gain: 0.35 electrons per ADU - Computer Interface: Built-in USB 2.0 compatible interface. - Image download time: Typically 4.5 seconds at full resolution using USB 2.0. - Power requirements: 115VAC / 240VAC @ 12VA, or 12VDC @ 750mA max. - Cooling system: Regulated constant current cooling supply with two stage thermoelectric cooler to give a CCD temperature of approximately -40C below ambient. - Size: 75 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. - Back focal distance from front of camera to CCD: Approx. 23mm - Weight: approx. 400g. Price: 1000 euro