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Orion Telescopes
Orion StarShoot G21 Deep Space Color Imaging Camera
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  • A massive pixel count camera based on the Sony IMX269 CMOS, 4/3 format color sensor
  • One-shot color CMOS chip, featuring multiple resolutions up to 5280x3956, with 3.3 micron pixels
  • Exposure range from 0.1ms - 3600s and USB 3.0 video frame rates up to 18 fps full frame (75+ subframe) allow short exposure video planetary imaging, as well as long exposure deep-sky shots
  • Fully ASCOM compatible for use with image capture applications such as Sequence Generator Pro, Nebulosity, SharpCap, and more!
  • Includes hard case, AC adapter, USB 3.0 cable, and downloadable software / drivers compatible with Win 8/10/11

Learn more
Item #  54290b

The Orion StarShoot G21 Deep Space Color Imaging Camera is a massive pixel count deep-sky astrophotography camera based on the Sony IMX269 12-bit CMOS chip, with 3.3 micron pixels and a factory spec'd 20.9M pixel array. Multiple resolution/aspect ratios are available in software, all the way up to 5280x3956 pixels! Exposures from 0.1ms-3600s and up to 18 fps full frame (and much higher when subframing) means you can shoot planets as well as nebulae. You'll be amazed at the results that this large format CMOS chip can produce.

The StarShoot G21 features a two-stage regulated thermo-electric cooler with fan, capable of reaching ~40 C below ambient, which dramatically reduces noise. The USB 3.0 interface provides exceptionally fast frame rates and downloads. Power for the camera electronics comes from the USB port, and the TE cooler is powered by an included AC adapter.

A standard t-thread is cut into the front, and with an included 2" nozzle, you can attach the G21 camera to most all telescope configurations, including coma correctors, flatteners, and off-axis guiders. With a built in two-port USB 2.0 hub, your filter wheel and guidescope camera can be wired directly to the G21, which means you'll only have the one USB cable running to your laptop, making cable management much less of a headache!

The one-shot color CMOS chip excels at seeing faint objects in relatively short exposures, and adjustable gain means you can boost the sensitivity in a given exposure. How do you choose between the StarShoot G10 and the G21? To make a decision between the two cameras, look closely at the specifications to see what will work best for your specific imaging needs. Here are highlights of some of the more important differences, along with a short discussion regarding those differences.

  G10 G21
CMOS chip Sony IMX294 Sony IMX269
Pixel Count 4128 x 2808 5280 x 3956
Pixel Size 4.63 micron 3.3 micron
A/D conversion 14-bit 12-bit
Full Well 66.6ke- 23ke-
QE Peak (sensitivity) 76% 84%
Read Noise 1.12e@HCG Mode 1.36e@HCG Mode

As you can see, the G10, while not having nearly as large a pixel count, has lower noise, 14-bit A/D (for greater dynamic range), and a larger full well capacity. And the fatter pixels (4.63 vs 3.3 microns provides more overall sensitivity to light even though the QE is slightly higher on the G21). The G21 has smaller pixels, leading to better arc-seconds per pixel resolution, useful when imaging planets at higher power while sub-framing. The greater number of pixels also allows for creating larger prints of your final image!

If your main goal is deep-sky imaging, and you want the best possible sensitivity and lowest noise in your images, the G10 is the preferred solution. The G21 can also image deep-sky objects well, but will require either a bit longer relative exposures or more images stacked together to increase the sensitivity and lower the noise in your resulting images to a similar level.

Compatible with Win 8/10/11, the camera includes a hard case, along with free control and image acquisition software. And best of all, the G21 is ASCOM compatible, meaning you can use most dedicated astro-imaging software on the market to unlock the full potential of your new StarShoot G21 camera!

How to Set Black Level on Orion StarShoot G Cameras


Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.

Product Support
Visit our product support section for instruction manuals and more
  • Best for imaging
    Deep sky
  • User level
  • Imaging sensor
    Sony IMX269
  • Imaging sensor size
    21.8mm diagonal
  • Pixel array
    5280 X 3956 (20,887,680 total)
  • Pixel size
    3.3 x 3.3
  • Imaging chip
    Single Shot Color
  • Video frame rate
    Up to 18 fps at full resolution, higher if cropped
  • Autoguider capability
  • Exposure range
    0.1ms - 3600s
  • A/D conversion
    12 bit
  • Thermoelectric cooling
  • IR filter
  • Mounting
    2" nozzle or t-thread
  • USB connection
    High-speed USB 3.0
  • Software compatibility
    Windows 8/10/11
  • Full well capacity
  • Gain
  • Binning
    1x1, 2x2, 3x3, 9x9
  • Max cooling
    -40C from ambient
  • Backfocus distance (from T-threads)
  • Weight (oz.)
  • Warranty
    One year

Hard Case
AC Adapter
USB 3.0 Cable

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

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