SBIG ST-2000XCMI Single Sensor Color CCD Camera - Discontinued


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SBIG ST-2000XCMI Single Sensor Color CCD Camera - Discontinued

The ST-2000XCM and ST-2000XCMI cameras are single shot color versions of the ST-2000XM and ST-2000XMI monochrome cameras, These single shot color versions use KAI-2020CM color CCD. This is essentially the same CCD as the KAI-2020M used in the ST-2000XM monochrome camera with the exception of an RGB filter matrix over the pixel array. All the other features are the same as the monochrome versions of the camera

SBIG customers have been invaluable sources of inspiration and direction. It was in direct response to customer inquiries that they developed the ST-2000XM. Now those who wanted something bigger and better but at a lower price than the ST-8 or ST-10 have got what they asked for. The ST-2000XM has been developed to meet the needs of the astro-imager looking for:

  • A relatively large CCD with a generous field of view - nearly the same size as the ST-8XME
  • More than a million pixels - nearly two megapixels
  • Good sensitivity
  • Low noise
  • Antiblooming protection - good for small refractors
  • High resolution on smaller telescopes with 7.4 micron square pixels
  • Flexibility of binning 2x2 on larger scopes with good image size
  • Self-guiding with a built-in TC-237H CCD (except on XMI & XUV models)
  • High speed download - about 4.5 seconds for a full 1.9 megapixel image
  • Professional software
  • Easy to use
  • Full compliment of optional custom accessories
  • Lower price
  • SBIG quality and support

The ST-2000XM and ST-2000XMI cameras are the same, except that the ST-2000XMI does not include the built-in TC-237H tracking CCD and some of the accessories that are included with the ST-2000XM (see the comparison table below). Both versions use the same high quality interline CCD from Kodak, the KODAK DIGITAL SCIENCEƒ??????????’?????????? KAI-2020M Image Sensor Megapixel Progressive Scan Interline CCD. The KODAK DIGITALƒ??????????’?????????? KAI-2020M is a high-performance multi-megapixel image sensor designed for a wide range of scientific, medical imaging, and machine vision applications. The 7.4mm square pixels with microlenses provide high sensitivity and the large full well capacity results in high dynamic range. The vertical overflow drain structure provides antiblooming protection, and enables electronic shuttering for precise exposure control to 0.001 seconds. Other features include low dark current, negligible lag and low smear. The KAI-2020M CCD is a 2 megapixel progressive scan detector with an active image area of 1.92 million pixels. The active image area is 1600 x 1200 pixels. This array is 75% larger than the Sony CCD used in competitors' "megapixel" cameras, nearly as large as an ST-8XME, and the ST-2000XM model is a self-guiding camera, utilizing SBIG's patented dual sensor design. Although the imaging CCD is nearly the same size as the KAF-1603ME used in the ST-8XME, due to the smaller pixel size it contains nearly half a million more pixels than the ST-8XME.


The latest KAI-2020M 2 megapixel CCD retains the improved QE of the KAI-2001M and adds a high gain output amplifier that reduces the read noise by almost half compared to the previous CCD. In addition to lower read noise, the bright points have been reduced by a factor of ~10X and our tests show the typical dark current is also reduced by approximately 2X compared to the previous versions of the CCD. These same improvements are also found in the single shot color version of the CCD used in the ST-2000XCM color camera as of July, 2004 (All ST-2000 monochrome and color cameras beginning with serial number 20407000 or higher). Previously, Kodak improved the Quantum Efficiency of the 2000 series CCD when it upgraded the KAI-2000M to the KAI-2001M. This higher QE is retained in the new KAI-2020M, with approximately 25% to 40% higher QE (10% to 15% absolute) across the visible spectrum than the former KAI-2000M.

The full frame download time is approximately 4.5 seconds with our high speed USB electronics. The ST-2000XM has antiblooming protection and the quantum efficiency is comparable to the ABG versions of the enhanced full frame "E" detectors used in the former ST-7XE and ST-8XE cameras with a shift in the peak sensitivity toward the blue. Compared to the ABG versions of the full frame "E" series cameras, the ST-2000XM is more sensitive in the blue and green, and slightly less sensitive in the red.



The average read noise has been reduced by almost half in the new KAI-2020M CCD. Previous KAI-2000 series CCDs tested just under 14e- rms but the new KAI-2020M typically measures less than 8e-.


Measurements made of a number of cameras show that the previous CCDs had an average dark current of 0.13e- and 0.18e- for the KAI-2000M and KAI-2001M respectively. Tests of a similar sampling of cameras made with the new KAI-2020M CCD show an average dark current of 0.06e-.


Measurements of the dark current in the top 1% of pixels shows a dramatic improvement. The previous detectors measured showed an average dark current in these pixels of around 2.5e- whereas the KAI-2020M measures on average only about 1.1e-.

The lower read noise, lower dark current and reduced bright points combine to significantly enhance the performance of this new CCD.


Every ST-2000XM/XMI or XUV Camera Comes With...


  • Rugged camera body with imaging and autoguiding (for XM Cameras) CCDs and new analog and digital electronics
  • 2 Megapixel KAI-2020M imaging CCD with reduced read noise, lower dark current and 10X reduced bright pixels.
  • For XM Camera - Built-in TC-237H CCD autoguider with 10X the sensitivity of an ST-4 (TC-211 prior to 8/18/03)
  • High speed USB interface (up to 421,000 pixels per second)
  • New I2C bi-directional expansion port, compatible with the new CFW-10 filter wheel.
  • New Remote Guide Head port, which makes the camera ready to accept the same Remote Guiding Head the STL cameras use.
  • Standard accessory / telescope port
  • User rechargeable desiccant plug (no need to return the camera to the factory for frosting problems)
  • "Dummy" desiccant plug for dust prevention during recharging procedure
  • Internal shutter
  • 2" Nosepiece Cooling Fan - on/off controlled by software
  • Water Cooling Heat Exchanger - XM model only
  • Tripod mount 1/4-20 threaded side plate
  • T-thread ring
  • 15 foot USB cable (third party USB extenders available for up to 500 meters!)
  • Adapter plug for telescope interface cable (for autoguiding)
  • Telescope interface cable (for autoguiding)
  • Universal 90-240VAC power supply with remote on/off switch
  • SBIG's CCDOPS version 5 camera control software with new, updated, CCDOPS manual on CDROM
  • Software Bisque's TheSky version 5, level II, with manual on CD-ROM - Fully Functional Demo Version
  • Custom design hard carrying case with pre-cut foam for your camera and accessories (optional with XMI & XUV models).





Please Note: SBIG drivers are compatible with 32 bit Vista, but they are not compatible with 64 bit Vista.


Binning Modes1x1 and 2x2 and 3x3
Camera Cooling Type Optional
Camera SeriesSBIG ST
CCD ClassClass 2
Color or MonoMonochrome
Dark Current/pixel/sec
Dimensions5" round x 3" deep
Filter WheelNo
Free ShippingYes
Full Well Capacity binned
InterfaceUSB 1.0
Maximum Exposure Time1 hour
Minimum Exposure Time.001 second
Pixel Array1600 x 1200 pixels
Pixel Size7.4 x 7.4 microns square
Quantum Efficiency56% peak
Sensor DesignInterline Transfer
Sensor Diagonal14.78mm
Sensor ManufacturerTruesense formerly Kodak
Sensor TypeColor
Shutter TypeMechanical
Single or Dual SensorSingle
Warranty2 Year Warranty