About the QSI 604 WSG Monochrome CCD Camera
The QSI 604wsg CCD camera uses a 2.0 megapixel Kodak (now TrueSense) full frame CCD imaging sensor as its light-gathering source. The KAF-0402ME has excellent quantum efficiency between 350nm and 1000nm with significant enhancement at the blue end of the spectrum. Micro lenses cover the surface of the CCD to focus the light into each 9um pixel to increase optical response. The superb imaging performance of the 604 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 604wsg 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 604WSG CCD Camera Highlights
- The QSI 604 camera comes with a TrueSense KAF-0402ME monochrome sensor. It sports 400,000 9um pixels, and offers micro lens technology 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 KAF-0402ME Imaging Sensor
The QSI 604wsg camera employs a Kodak KAF-0402ME class 2 full frame CCD image sensor with micro-lensing technology. The KAF-0402ME has excellent quantum efficiency between 350nm and 1000nm with significant enhancement at the blue end of the spectrum. Low dark current and high pixel charge capacity results in a dynamic range exceeding 76db. The sensor employs a true two-phase charge transfer technology with a transparent gate that significantly increases optical response compared to traditional front illuminated full frame sensors.
Kodak KAF-0402ME Specifications
- CCD Architecture: Full Frame
- Micro-lensing: Yes
- Anti-Blooming: No
- Imager Size: 6.91 mm Wide x 4.6 mm High
- Pixel Array: 768 x 512 active pixels
- Total Number of Pixels: 0.4 megapixels
- Pixel Size: 9µm x 9µm
- Quantum Efficiency: Peak: 77%, 45% at 400nm
- Pixel Dark Current: <0.1 electrons per second at 0°C
- Intrinsic Read Noise: 15 electrons RMS
- Charge Transfer Efficiency: >0.99999
- Dynamic Range: 76db
About QSI Two-Stage TEC Cooling
The QSI 604wsg 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
SKU QS-604WSG Manufacturer QSI Color or B&W? Monochrome (B&W) Sensor Type Full Frame Series QSI 600 Pixel Size 7-9 Microns Warranty 1 Year Warranty Sensor Manufacturer Truesense, formerly Kodak # of Sensors Single Sensor Front or Back Illumination Front Illuminated Sensor Model KAF-0402ME CCD Class Class 2 Anti-Blooming Sensor? no Micro-lensing Sensor? yes Quantum Efficiency 77% Peak Pixel Size in Micrometers 9um x 9um Pixel Array 768 x 512 active Integrated Guider? No, but includes Integrated Guide Port Shutter Type Digital & Mechanical Dark Current <0.1 electrons per second at 0°C Filter Wheel Yes Interface USB 2.0 Operating System Compatibility Linux (3rd Party), Windows Camera Cooling Type Liquid Cooled - Optional, Thermo-electric Cooling (TEC) Camera Weight 40 ounces
- Included Items
- QSI 604WSG CCD Camera
- Mechanical Shutter
- 5-Position Color Filter Wheel
- Integrated Guide Port
- T-Mount Camera Adapter
- T-Mount Adapter Cover
- T-Mount to 2" Nosepiece
- 12 VDC / 90-240 VAC Power Supply
- 10' USB 2.0 Interface Cable
- 10' Standard Guider Cable
- QSI Software Installation CD ROM
- Drivers for Maxim DL/CCD and CCD Soft
- ActiveX Developer's Toolkit
- Custom Fit Pelican Storage Case
- Questions & Answers
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- Support / Downloads