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Starlight Xpress SXVR-H814 |
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Medium Format Cooled CCD Camera, 9.2 Million Pixels |
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SXVR-H814 |
QE Comparison of H814/H814C with H9 |
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Truly the next revolution in Cooled CCD Cameras from
Starlight Xpress. |
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The SXVR-H814 uses the very latest and certainly the best
CCD to be released by Sony since we started designing and
producing cameras around Sony CCDs in 1991. It has a
remarkable Quantum Efficiency of 77% which was previously
unheard of in an interline sensor; but with all of the
wonderful benefits of an interline CCD, especially from Sony
such as incredibly low thermal noise and very fast
electronic shutter (no need for mechanical shutters).
The CCD is available in both single-shot colour and mono, so
you can have the ability to capture striking colour images
with a single exposure or take full advantage of the
versatility of using the monochrome version for scientific
applications, such as photometry and narrow band imaging
etc. |
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Key Features of the SXVR-H814
series CCD Camera
• Exceptionally High QE •
Incredibly low noise (thermal and readout) • Compact and
light-weight
• Remarkably Low Power consumption • Outstanding build
quality • Fast downloads
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SXVR-H814 Technical Specifications |
| CCD type: |
Sony
ICX814ALG (mono), ICX814AQG (colour) Ex-view CCD
with ultra low dark current and vertical
anti-blooming |
| CCD Full
resolution pixel data: |
Pixel size:
3.69uM x 3.69uM, Image format: 3388 x 2712 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: |
Typically 5
electrons RMS |
| Full-well
capacity: |
Greater
than 18,000 e-(unbinned) |
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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 |
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Efficient Cooling System
The cooling system is designed for the most efficient
cooling possible in a compact package. The CCDs are Peltier
cooled, with the extracted heat being removed by air drawn
through holes in the cooler plate, and then expelled out the
rear of the camera by the fan. The whole body is used as a
heatsink for the heat generated during the cooling process. |
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Fused Silica Window
Unlike less expensive cameras, we fit a specially
manufactured fused silica window, with a 7 layer
antireflective coating to all of our SXVR Cameras. This
offers exceptional strength and heat transfer
characteristics to ensure there is less chance of dewing of
the front window during humid weather. |
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Unique Tilted Camera Front
This unique feature of the camera design allows the front
plate of the camera to be tilted to ensure that the CCD and
the focal plane are parallel to each other. This enables the
user to adjust for any collimation issues with the optical
train to ensure pinpoint stars across the field. |
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Conduction
To assist with the excellent cooling design of the camera
housing and the unique tilted front design of the cameras,
we have introduced a ‘Silver-Impregnated O-Ring’ to not only
act as a light seal for the camera but also to allow heat
to conduct through the front of the camera to the rest of
the optical train, helping to gently warm it, assisting to
reduce the formation of condensation. |
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Rear Camera Panel
The SXVR Camera provides multiple inputs and outputs. The
RJ11 Guider Port output is opto-isolated and will drive any
standard active-low guider input via the RJ11 'telephone'
lead provided. The ‘SXV Autoguider Port’ is an 18 way
latching high density connector, which provides both power
and control signals for the dedicated external guide camera
(not supplied). It also carries two RS232 serial ports for
external device control. If the serial ports are not
required, the guide camera may be connected directly to this
socket, otherwise a small 'port divider' box can be
connected in-line and presents the two serial outputs on
standard 9 pin 'D' plugs. |
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HyperStar Perfect
The SXVR range of cameras is perfectly suited to the
HyperStar system designed by Starizona. The round and
light-weight body (400g (>1lb)) is smaller than the central
obstruction on even the Celestron C6 so none of the aperture
of the telescope will be obscured. |
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