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QSI 690WSG-8 Cooled Monochrome CCD Camera with Internal 8-Position Color Filter Wheel - QSI690WSG8

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QSI 690wsg Cooled Monochrome CCD Camera

Buy this Camera & Get a Filter Set for 50% Off! For a limited time, when you buy any new monochrome Atik or QSI camera (except the Atik LP) you will be eligible to purchase your choice of one Atik LRGB or Narrowband Filter Set at a substantially discounted price! If you are interested in this offer, put an eligible camera into your shopping cart and then visit the Atik Filter Sets page to choose your discounted filter set. Remember, you must have a new Atik or QSI mono camera in your shopping cart in order to take advantage of this offer. We will cancel any orders that do not follow these rules. Thanks.

Like all QSI 600 Series cameras, the 690wsg offers supreme quality images with high frame rates, exceptionally wide dynamic range, superb linearity, and extremely low noise by providing up to 8 MHz dual read rates using High Speed USB 2.0 and full 16-Bit output. Custom two-stage TEC enables regulated cooling down to greater than 45ºC, or greater than 50ºC with an optional Liquid Heat Exchanger.

All QSI 600 Series cameras utilize High Speed USB 2.0 port (USB 1.1 compatible) for connection to the host computer and imaging application software. Read and transfer time for an entire 2048 x 2048 image frame is typically approximately 1/2 second in High Speed mode and less than 7 seconds in High Quality mode. The frame rate can be further increased by reading just a portion of the image (ROI) or with flexible on-chip binning.

The superb imaging performance of QSI 600 Series cameras is wrapped in an eye-catching, compact design with outstanding power efficiency and upgradeable features to protect your investment. The refined engineering and impressive fit, finish and attention to detail will surpass your highest expectations.

QSI 690wsg Monochrome CCD Camera Features

Sony ICX814 CCD Sensor: The QSI 690wsg camera uses the Sony ExView Interline Transfer CCD image sensor, and sports both micro lens technology and anti-blooming protection. The 9.19 MP Sony ICX814 uses 3.69 µm x 3.69 µm pixels with a photoactive image array of 3388 x 2712. The ICX814 has exceptional sensitivity across the visual band with peak quantum efficiency of 77% along with remarkably low dark current.

Mechanical Shutter: Both electronic and mechanical shutters are included with the QSI 690wsg camera. When running with an interline transfer CCD sensor, the electronic shutter is responsible for actually making the exposure, not the mechanical shutter. The mechanical shutter's job is to cover the CCD and simplify production of Dark and Bias frames for future image processing.

WSG Body & Integrated Filter Wheel: In order to make room for an internal eight position color filter wheel while providing an integrated guide port, the QSI 690 uses a WSG camera body. Engineered with extensive use of sophisticated CAD-CAM design tools, the QSI 600 Series camera body is CNC machined from aircraft grade aluminum alloy. The finely finished anodized body components are assembled with corrosion resistant stainless steel hardware throughout. The standard filter wheel accepts standard threaded 1.25" filters*.

Integrated Guide Port (IGP): The QSI 690wsg's Integrated Guider Port functions by taking a portion of the light from your main telescope and redirecting it via a pick-off prism to a separate guide camera attached to the top of the WSG cover.

The Integrated Guider Port solves a number of the problems associated with other common guiding solutions. In one of the images to your left you will see a camera with the red arrows that represent the portion of the light redirected to the guide camera. The light enters the camera, strikes the pick-off prism positioned in front of the built-in 8-position color filter wheel and is reflected upward at 90 degree angle into the guide camera attached on top. By picking off the light for guiding from in front of the filters and mechanical shutter, you’re able to utilize all the light from your guide star for guiding. No light is lost by first passing through a red, green blue or narrowband filter, guaranteeing the highest possible signal to noise ratio (SNR) for your guide stars. You can guide even while the shutter is closed.

Measuring 1/2" square, the pick-off prism is optimally placed close to the internal filter wheel barely outside the field of view of the main sensor to support the use of guide cameras with large sensors while the main sensor vignetting is prevented even with extremely fast optical systems.

High Quality Read Mode: High Quality (HQ) Read Mode enables the lowest possible noise but also requires more time to read the image from the sensor. With High Speed (HS) Read Noise, the sensor image is read at a 8 million pixels per second (8 MHz) rate, supporting up to 15 fps frame rates based on the camera model, ROI, and binning.

USB 2.0 and Full 16-Bit Output: Pixel depth is a full 16-bits per pixel providing the smoothest color and gray scale transitions and the lowest noise.

Selectable ROI and Binning: All cameras from QSI enable highly flexible subject framing with selectable Region of Interest (ROI) and binning.

Output Hardware Trigger: QSI cameras are able to produce a hardware signal from the Control Port to generate an external event such as a strobe.

Regulated Cooling: For successful long exposure imaging, cooling the CCD is crucial. Sensor cooling drastically minimizes an image's dark current and resulting thermal noise to make long exposures a realistic undertaking.

QSI 600 Series cameras use a very efficient thermo-electric cooler (TEC) which relies on the 'Peltier Effect' to cool the CCD. When power is applied to a TEC, one side of the device gets cold and other side gets hot, essentially pumping heat from the cold side to the hot side. All QSI 600 Series cameras employ a two-stage TEC to increase the differential cooling effect. The more power applied to the TEC, the greater the differential cooling and the colder the CCD can get. The heat pumped from the CCD, as well as the power dissipated by the TEC, creates a significant amount of excess heat that must be removed from the camera. The back of a QSI 600 Series camera acts as a large heatsink with cooling fins machined directly into the body. Two automatically controlled cooling fans force air through these fins. The movement of air through the cooling fins greatly increases the amount of heat removed from the camera. Keep in mind that the lowest temperature that the CCD can be cooled is limited by the ambient air temperature and the speed of the cooling fans. Achieving very low temperatures is easy when imaging outdoors during cooler weather. If it is particularly cold you may not even need to turn the fans on, but if it is too warm you may need the help of Liquid-Assisted Cooling, which is available optionally.

Power Efficiency: Power efficiency is one of the hallmarks of QSI 600 Series cameras. Fully configured WS cameras operate via a 12v DC power supply and consume under 24 watts at full cooling with the filter wheel moving and both fans working at maximum. Power consumption for other camera model configurations can be as low as 5 watts. An approved 12 volt DC power supply with an input voltage range of 90-240V, 50-60HZ is included with each camera.

Notification: Both visual and audible notification is built into all 600 Series cameras. A multi-color LED status display provides visual indication of the various states of camera operation. The behavior of the indicator is configurable and can be disabled by user command. A unique internal beeper provides audible feedback of camera operation and status. Like the visual display, the beeper can be configured and disabled by the user.

QSI 690wsg Monochrome CCD Camera Specifications

  • Body Type: Integrated Guider Port Enclosure
  • Shutter: Mechanical (Sensor has electronic shutter)
  • Minimum Exposure: 0.03 seconds
  • Maximum Exposure: 240 minutes
  • Integrated Filter Wheel: 8-position 1.25"; 31 mm upgrade is available
  • Integrated Guide Port: Yes
  • Dimensions: 4.45" width x 4.45" height" x 3.08" depth
  • Weight: 46 oz.
  • Thermoelectric CCD Cooling: Temperature regulation +/- 0.1°C, @ 0°C to -40°C CCD temperature
  • Cooling in Free Air, Fans @ Full Speed: Typically 40°C below ambient air with 85% cooling power
  • Liquid Cooling (Optional) - Fans Off: Typically 45°C below circulating liquid with 85% cooling power (adds 0.75" to camera depth)
  • Cooling Fan Control: Intelligent, user configurable
  • Read Rate: User selectable High Quality mode at 800 KHz, High Speed mode at 8 MHz
  • Camera Gain: User selectable High Gain 0.13 e-/ADU (default), Low Gain 0.28 e-/ADU
  • Digital Resolution: 16 bits in both High Quality and High Speed modes
  • Total System Read Noise: <4 electrons RMS (typically <3.5 e- RMS, CCD specification limited) in High Quality mode (typically <7 e- RMS (CCD specification limited) in High Speed mode
  • Pixel Dark Current: <0.002 electrons per second at -10°C
  • Full Image Read and Download Time: Typically <16 seconds (host computer dependent) in High Quality Mode (800 KHz), <2 seconds in High Speed Mode (8 MHz), Image download times will be reduced with binning and/or subframe (ROI)
  • Binning Modes: Symmetrical and Asymmetrical binning up to 9 pixels horizontally or vertically
  • Status and Notification: User configurable multi-color LED status indicator and multifunction audible beeper. Over-temperature and high/low voltage alarms.
  • Power Consumption: 12v, 2A (24 watts) at max cooling, max fans and filter moving (25 AC watts max with included 90-240V AC power supply)
  • Operating Environment: Temperature: -20°C to 30°C, Humidity 10% to 90% non-condensing
  • Computer Connectivity: USB 2.0 High Speed (USB 1.1 compatible)
  • Other Ports: Optically isolated 4-channel control port for telescope guiding or input/output shutter trigger (See API Reference Manual for details)
  • Included T-Mount Adapter: 42x0.75 mm t-thread
  • Nosepiece; T-Mount Adapter to 2"

Sony ICX814 Sensor Specifications

  • CCD Sensor: Sony ICX814 monochrome
  • CCD Architecture: Interline Transfer
  • Microlens: Yes
  • Anti-blooming: Yes - 800x suppression
  • Imager Size: 12.48 mm x 9.98 mm
  • Pixel Array (Active): 3388 x 2712
  • Pixel Size: 3.69 µm square
  • Full Well Depth: 18,000 e-
  • Absolute Quantum Efficiency Peak: 77% at 550 nm
  • Pixel Dark Current: <0.002 electrons per second at -10°C
  • Intrinsic Read Noise: 3.1 electrons RMS
  • Dynamic Range: 75 db

Available Upgrades:

All of the upgrades listed below can be found in the "Accessories" section. Please make sure to add them to your cart, along with this camera, in order to take advantage of the savings. If you have any questions or concerns, please contact a member of the High Point team by chat, email, or phone. Thanks.

1. Camera control software is not included with this camera, since many people already have software they prefer. If you do not purchase the Maxim LE upgrade at the time of camera purchase ($149), you will need to have your own camera control software.

2. *You can upgrade to a 5-Position Filter Wheel that accepts 31 mm unmounted filters for $50 as long as you make this choice at the same time you purchase your camera. If you opt for the standard 1.25" filter wheel now but decide to use 31 mm unmounted filters at a later time, you will need to purchase the appropriate retaining screws to accommodate the depth of your filters, and doing so will allow the standard filter wheel to accept 31mm unmounted filters.

3. This camera has standard t-threads on the faceplate, and comes with a T-mount adapter and a 2" nosepiece. If you need 2.156" threads, with a 2.156 adapter and 2" nosepiece, you can upgrade at the time of your camera purchase for $149, which saves you $100 over buying the 2.156" camera mounting package at a later time.