Major features:

Medium format, high resolution 'Exview' CCD chip, with 6,050,000 x 4.54uM square pixels in a 15.98mm diagonal array.

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.

Very high sensitivity - 77% QE at peak of response in yellow light, 65% at Hydrogen alpha line (656 nM).

QE comparison of H674/694 with H9.

High speed USB 2.0 interface for approx. 5 second downloads.

Built-in autoguider interface and output - compatible with our optional dedicated external guide cameras.

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!

Very low power consumption. Less than 1 amp at 12v DC.

Compact and lightweight - only 75mm in diameter x 70mm long - less than 500 grams load on the telescope.

Specifications:

CCD type: ICX694AQG (colour) Exview CCD with ultra low dark current and vertical anti-blooming.

CCD Full resolution pixel data: Pixel size: 4.54uM x 4.54uM, Image format: 2750 x 2200 pixels

CCD Image area: 12.49mm (Horizontal) x 9.99mm (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 580nM (~77%), 50% roll-off at 360nM and 770nM. 

Readout Noise: Less than 7 electrons RMS - typically ONLY 5 electrons! 

Full-well capacity: Greater than 20,000 e- (unbinned)

Anti-blooming: Overload margin greater than 800x.

Dark current: Less than 0.002 electrons/second @ - 10C CCD temperature.

Data format: 16 bits.

System gain:  0.3 electrons per ADU

Computer Interface: Built-in USB 2.0 compatible interface.

Image download time: Typically 5 seconds at full resolution.

Power requirements: 115VAC / 240VAC @ 12VA, or 12VDC @ 900mA max.

Cooling system: Regulated set-point cooling supply with thermoelectric cooler to give a minimum CCD temperature of approximately -30C 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.

Weight: approx. 400g.