QSI 690wsg Monochrome CCD Camera - Mechanical Shutter, Integrated Guide Port & 5 Position Filter Wheel

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QSI 690wsg Monochrome CCD Camera - Mechanical Shutter, Integrated Guide Port & 5 Position Filter Wheel
Item # QS-690WSG
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  • The QSI 690wsg CCD Camera Monochrome camera is built on the Sony ICX814 9.2MP sensor.
  • This camera includes a mechanical shutter for shooting calibrations frames, unattended.
  • Comes with 5 position filter wheel to house color or narrowband 1.25" filters.
  • Guide with light from in front of the filter wheel! Integrated guide port (IGP) allows you to guide with a wide variety of guide cameras using any bright star of your choosing without the need for a separate guide scope! Guide camera (such as the Lodestar or STi, etc.) is sold separately).
  • Dual read rates of 800kHz and 8MHz. Includes high speed USB 2.0 16-bit output cable.
  • Air cooling to 45ºC below ambient.
  • Electronic shutter speeds down to .0001 seconds.
  • Includes T and T to 2" adapters plus a rugged Pelican case with custom fit foam.
  • Note: If you will be using 31mm unmounted filters with this camera, you will require part number QS-AC5-CFW31-S3 which is specialized mounting hardware to ensure that your filters are secure. This can be found in the Recommended Accessories to your right.


About the QSI 690 WSG CCD Camera

The QSI 690wsg CCD camera employs a 9.19 megapixel Sony CCD imaging sensor. The ICX814 offers remarkable sensitivity with a peak QE of over 75%. The high sensitivity, wide dynamic range, dual read rates, low noise, integrated guide port (allowing astronomers to guide using the light from the main telescope while picking off the light from the guide star in front of the filters) and internal 5 position color filter wheel makes the QSI 690wsg ideally suited to a broad range of demanding imaging applications. The superb imaging performance of 690 WSG camera is wrapped in an attractive, compact design with outstanding power efficiency and investment protecting upgradeability. The refined engineering and impressive fit, finish and attention to detail will surpass your highest expectations.The QSI 690wsg camera system is supported by industry-leading astronomy and microscopy image acquisition software, and a full camera control API is available for creating custom Windows or Linux applications.

QSI 690WSG CCD Camera Highlights

  • The QSI 690 camera comes with a Sony ICX814 sensor, with 9.19MP and a peak QE of 77%
  • All “WSG” models include an Integrated Guider Port (IGP)
  • A 5-Position Color Filter Wheel comes ready for your threaded 1.25” filters
  • High speed USB 2.0 with 16-bit output
  • Dual read rates of 800kHz and 8MHz with virtually undetectable read noise
  • Electronic shutter speeds to 100 microseconds
  • Internal, even-illumination mechanical shutter for dark & bias frames
  • Intelligent, programmable two stage TEC cooling to 45C below ambient
  • ASCOM-compatible Windows COM API
  • Linux drivers and API

About the Sony ICX814 Imaging Sensor

The QSI 690wsg camera employs a Sony ExView ICX814 interline transfer CCD image sensor with micro-lensing technology. The Sony ICX814 has exceptional sensitivity across the visual band, with peak quantum efficiency of 77%. The dark current (<0.002 electrons per second at -10°C) is amazingly low. The sensor has anti-blooming protection and a fast electronic shutter. Micro lenses cover the surface of the CCD to focus the light into each 3.69µm pixel, thereby increasing the optical response.

Sony ICX814 Specifications

  • CCD Architecture: Interline Transfer
  • Micro-lensing: Yes
  • Anti-Blooming: Yes - 800x suppression
  • Imager Size: 12.48 mm Wide x 998 mm High
  • Pixel Array: 3388 x 2712 active pixels
  • Total Number of Pixels: 9.19 megapixels
  • Pixel Size: 3.69µm x 3.69µm
  • Quantum Efficiency: Peak: 77% at 560nm
  • Dark Current: <0.002 electrons per second at -10°C
  • Intrinsic Read Noise: <7 electrons RMS (typically 5e- RMS)
  • Dynamic Range: 68db

About QSI Two-Stage TEC Cooling

The QSI 690wsg has a very efficient custom 2-stage thermoelectric cooler (TEC) subsystem. Intelligent, programmable cooling fans are integrated into the rear of the camera body to remove the heat generated by the cooler. Typically, forced air cooling lowers the regulated CCD temperature by up to 45°C below ambient utilizing 85% power. Tight +/- 0.1°C temperature regulation is maintained at temperature settings of 10°C below ambient and lower. A slim liquid heat exchanger (sold separately) can be attached to the rear of the camera body to increase the cooling further, up to 55°C below the temperature of the circulating fluid.

The cooled CCD image sensor is positioned in a hermetically sealed environmental chamber and covered with an anti-reflection precision optical window. The sealed chamber is purged with an ultra dry noble gas to increase heat conduction and eliminate the possibility of frost forming inside the chamber. To extend the useful period before re-purging is required, a user-rechargeable micro-sieve desiccant is employed to scavenge water molecules that enter the chamber. It is located behind a sub-micron, gas-permeable membrane to prevent particulate contamination of the CCD chamber.

QSI Integrated Guide Port WSG Upgrade

The QSI 600 Series WSG cameras provides a solution to the problems normally associated with guiding by integrating a Guider Port directly into the camera body. The pick-off prism is designed to sit in front of the filters so that you will always have all the star's light available for guiding.

The large 1/2” square pick-off prism of the integrated guide port is optimally positioned close to the internal filter wheel, supporting the use of guide cameras with large sensors, while preventing any vignetting of the main sensor, even with very fast optical systems. The Integrated Guide Port (IGP) is designed to support any camera with 12.5mm of back focus or less that can be attached using C-mount or T-mount threads.

The threaded adapter sits on top of the focus ring and allows the guide camera to be rotated to any position. The focus ring threads onto the focus base to allow 3mm of travel when focusing the guide camera. Once focus is achieved, the focus ring is locked with a set screw. The guide camera can still be rotated manually if desired without changing the focus. The end result is a rigid, easily focused guide camera that will not move or flex while your mount tracks the apparent motion of the night sky.

Additional Information

Additional Information

Manufacturer QSI
Color or B&W? Monochrome (B&W)
Sensor Type Interline Transfer
Series QSI 600
Pixel Size < 5 Microns
Chip Diagonal 14.1mm - 16mm
Warranty 1 Year Warranty
Sensor Manufacturer Sony
# of Sensors Single Sensor
Sensor Model ICX814
CCD Class Standard
Anti-Blooming Sensor? yes
Micro-lensing Sensor? yes
Quantum Efficiency Peak: 77% at 560nm
Blue Enhanced Sensor? no
Pixel Size in Micrometers 3.69 x 3.69 microns
Pixel Array 3468 x 2712
Sensor Diagonal 15.972mm
Minimum Exposure Time .0001 seconds
Integrated Guider? No, but includes Integrated Guide Port
Binning Modes No
Shutter Type Digital & Mechanical
Dark Current <0.002 electrons per second at -10°C
Filter Wheel Yes
Interface USB 2.0
Operating System Compatibility Linux (3rd Party), Windows
Included Software Drivers for MaximDL/CCD and CCDSoft
Camera Cooling Type Thermo-electric Cooling (TEC)
Camera Body Dimensions W4.45” x H5.0” x D3.08”
Camera Weight 46 ounces, without nosepiece
Included Items

Included Items

  • QSI 690 CCD Camera
  • 5 Position Color Filter Wheel
  • Integrated Guider Port
  • T-Mount Camera Adapter
  • T-Mount Adapter Cover
  • T-Mount to 2" Nosepiece
  • 12VDC/ 90-240VAC Power Supply
  • 10 ft. USB 2.0 Interface Cable
  • 10 ft. Standard Guider Cable
  • QSI Software Installation CDROM
  • Drivers for Maxim DL/CCD and CCDSoft
  • ActiveX Developer's Toolkit
  • Custom Fit Pelican Storage Case
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