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QSI 683WSG Mono CCD Camera - Mechanical Shutter, 8-Position CFW & IGP with C-Thread

SKU : QS-683WSG-C-8

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  • Sensor: KAF-8300
  • Pixel Array: 3326 x 2507
  • Pixel Size: 5.4 microns square
  • Intrinsic Read Noise: 8 electrons RMS

Product Details

  • The QSI 683wsg CCD camera employs the popular 8.3 megapixel Kodak (now TrueSense) full frame CCD imaging sensor. The KAF-8300 offers a large field of view in cameras using standard 1.25-inch filters. The 5.4 um pixel size provides extremely high resolution. The sensor uses true two-phase charge transfer technology with a transparent gate that significantly increases optical response compared to traditional front illuminated full frame sensors. The superb imaging performance of 683 WSG camera is wrapped in an attractive, compact design with outstanding power efficiency and investment protecting upgrade-ability. The refined engineering and impressive fit, finish and attention to detail will surpass your highest expectations.The QSI 683wsg 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 683WSG CCD Camera Highlights:

    • The QSI 683 camera comes with a TrueSense KAF-8300 sensor, with 8.3MP and a peak QE of 60-percent
    • All WSG models include an Integrated Guider Port (IGP); this one comes with C-threads.
    • An 8-Position Color Filter Wheel comes ready for your threaded 1.25-inch 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 and bias frames
    • Intelligent, programmable two stage TEC cooling to 45-degrees C below ambient
    • ASCOM-compatible Windows COM API
    • Linux drivers and API


    About the KAF-8300 Imaging Sensor: The QSI 683wsg camera employs a Kodak KAF-8300 full frame CCD image sensor with micro-lensing technology. The KAF-8300 has excellent quantum efficiency between 350 nm and 1000 nm with peak QE of 57-percent. Low dark current and high pixel charge capacity results in a dynamic range exceeding 70db. 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 5.4 micrometer pixel, thereby increasing the optical response.


    Kodak KAF-8300 Specifications

    • CCD Architecture: Full Frame
    • Micro-lensing: Yes
    • Anti-Blooming: Yes - 1000x suppression
    • Imager Size: 17.96 mm Wide x 13.52 mm High
    • Pixel Array: 3326 x 2507 active pixels
    • Total Number of Pixels: 8.3 megapixels
    • Pixel Size: 5.4 micrometers x 5.4 micrometers
    • Quantum Efficiency: Peak: 57-percent, 400 nm 38-perceent
    • Dark Current Doubling: 5.8-degrees C
    • Intrinsic Read Noise: 8 electrons RMS
    • Dynamic Range: 70db


    About QSI Two-Stage TEC Cooling: The QSI 683wsg 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-degrees C below ambient utilizing 85-percent power. Tight +/- 0.1-degrees C temperature regulation is maintained at temperature settings of 10-degrees 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-degrees 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 with C-Threads: 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-inch 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 12.5 mm 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 3 mm 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.


  • specifications

    Color or MonoMonochrome
    Peak QE57%
    Pixel Array3326 x 2504 (active)
    Pixel Size5.4 microns
    Sensor TypeCCD
    SensorTruesense KAF 8300
    Warranty1 Year Warranty
  • included items

    • QSI 683WSG-C-8 Monochrome CCD Camera - Kodak KAF 8300
    • 8 Position Color Filter Wheel
    • Integrated Guider Port with C threads
    • T-Mount Camera Adapter
    • T-Mount Adapter Cover
    • T-Mount to 2-inch Nosepiece
    • 12VDC/90-240VAC Power Supply
    • 10-foot USB 2.0 Interface Cable
    • 10-foot Standard Guider Cable
    • QSI Standard Installation CD ROM
    • Active X Developer's Toolkit
    • Custom Fit Storage Case


Product Reviews

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4.0 Based on 5 Reviews
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Filter Reviews:
    Steve S.
    United States
    QSI 683 CCD camera purchase

    Have not had any real clear nights yet to use the camera, but I trust the experience will be good. QSI cameras have a good reputation, and I'm looking forward to the higher resolution and pixel technology over my old, trustworthy SBIG ST-8E camera.

    Worth The Money

    I was hesitant to spend this much cash, but I've had the camera a year now and haven't regreted it for a moment. Brilliant build quality and all around terrific piece of kit.


    I would love to get together. The ETS prargom is what burnt me out on astronomy. After running the prargom for a few years, the hassle of coordinating dates, volunteers and speakers took its toll, especially after Fred left. Not even a stint as a Palomar Observatory docent could pull out of the doldrums. I actually still have the lease-hold on the pad I built on Mars Hill, but have not been out there for years. Have a semi-permanent squatter.


    Russ,Very impressive web page, and it looks like a first class obvrosatery. I was sorry to see you get out of astronomy a few years ago, and I'm very glad to see that you are back, dedicated once again to top quality outreach and a passion for the beauty of the cosmos.Tim

    Adrien Z.
    QSI 683 wsg

    Perfect camera, perfect customer service. I had some issues and it was fixed at QSI. The camera works well and satisfactory. I would not use any other camera.