• STX 16801 is a windowless version of the camera shown
  • STX-16803

    SKU: STX-16803


    Our most popular large format CCD camera.  16 megapixel sensor with 9 micron pixels.  Options include filter wheel, off-axis guiding, and adaptive optics.


    This product is also available in packages.

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Product Description

New Software Included!

Starting October 1, 2019 all new SBIG STX series cameras now include a license for our renowned MaxIm LT software, a $200 value, at no extra cost.

Superior Cooling


The STX uses an innovative pin fin heat sink. This design is the most efficient for dissipating heat per given volume, and while it is more expensive than typical parallel fin heat sinks commonly round elsewhere, it provides superior performance and minimizes size and weight at the same time. This is one of the reasons the STX camera weighs less than competing cameras with similar cooling performance. The new heat sink is an optimized design for this camera using a large custom pin fin heat sink mated directly to the hot side of the 2 stage TE cooler to achieve maximum heat dissipation with a single large fan. In less than 5 minutes the STX achieves a delta of -50C using air cooling only.

Water Circulation Ready

While the design is aimed at sufficient cooling without water assist, it is possible to use water instead of air or in addition to air for optimum cooling. Using water instead of air will not require the use of a fan.

Variable Speed Fan Control


If the user desires air cooling only, the fan speed is controllable through software. Variable speed control allows the user to “tune” to fan to eliminate any resonance with the user’s telescope thus suppressing harmonic vibrations.

User Rechargeable Desiccant

This feature allows the user the greatest flexibility in the field, and avoids having to return the camera to the factory in order to dry the CCD chamber.

Even-illumination Shutter

From our first ST-7 camera, SBIG has incorporated an even illumination shutter for taking short exposure flat field frames. However the rotating disk design becomes rather large with ever increasing CCD sizes.  The STX uses a linear shutter design that reduces overall size and weight, while maintaining even illumination on short exposures with large CCDs.  This is something not found on any other camera with a CCD this large.

Flexible Self-Guiding Options

It is well known that the advantage of easier guiding through a separate guide scopes is often limited by differential deflection of the guide scope relative to the main optical axis due to mechanical flexure or shifting of the mirror in the main OTA.

The SBIG StarChaser SC-3 is a new option for integrated self-guiding and AO-X control.  Attaching to the front of the FW7 filter wheel, it directly images and controls the AO completely independently of the main camera.


Optional AO-X Adaptive Optics

All STX models can operate with the AO-X Adaptive Optics accessory.  The AO-X uses a tip-tilt window to quickly and precisely adjust the image position in response to autoguider feedback.  With Adaptive Optics there is no backlash, stiction, or lag, and the movements are precise and accurate.  This allows the AO-X to not only remove the effects of periodic error, drift, and wind gusts, but also reduce the effects of atmospheric seeing.  The AO-X requires the use of an STX Guider, StarChaser SC-3, or an off-axis guide assembly with the Remote Guide Head.

For more information please see AO-X.

I2C AUX Port

The STX cameras have a convenient I2C AUX port, which controls all accessories including filter wheels and AO-8T Adaptive Optics accessories.

Tracking Relay LED indicators


This handy set of 4 LEDs will tell you at a glance if the camera is issuing corrections to the mount in +X, -X, +Y or -Y directions during an imaging session.

USB 2.0 and Ethernet

Both USB 2.0 and Ethernet are available on STX cameras. The user does not have to choose the interface at the time of purchase. The STX camera also directly powers and controls all optional accessories including filter wheel, STX Guider, and AO-X Adaptive Optics.

Full Frame Image Buffer

The STX series cameras has a full frame image buffer for storing image data during download. This eliminates any possibility of image artifacts caused by computer processing delays during image download.

Carrying Case

All STX cameras include a deluxe carrying case, universal power supply, STX power extension cable, USB cable, guider cable and software.

Additional Information

A/D Converter

16 bits

Adaptive Optics Option




Sensor Size

36.8 mm x 36.8 mm

Computer Interface

USB2 /Ethernet

Cooling Delta

~50 °C delta to a minimum -35°C operating temperature

Dark Current e/p/s at 0 C

0.8 e-/p/s typical


0.1-3600 sec

Filter Size

50mm Square

Filter Wheel Option


Full Frame Download

9 sec

Full Well Capacity

100,000 e- typical

Imaging Sensor


Imaging / Pixel Array

4096 px x 4096 px

OAG Option

STX Guider or StarChaser

OS Compatibility

Windows 7, 8, 10 x86/x64, MacOS 10.14 “Mojave” x86 binaries, Ubuntu 18.04 LTS x64, Ubuntu Mate arm64

Pixel Digitization Rate

1.8 MHz

Pixel Size

9 μm


12 VDC

Power Cable

US, European

Read Noise

10 e- typical

Remote Guide Head


Self-Guiding In Front of Filters

Yes with STX Guider or StarChaser SC-3


Mechanical, Even-illumination

Temperature Regulation


Total Pixels

16.0 million pixels


5.5 lbs


Product overview

Product overview of STX and STXL cameras.


Operating manual

Installation, and operating instructions for STX-Series cameras. Note: for completeness the manual includes information for older STX cameras with internal guide sensors; these guide sensors have been discontinued.


Backfocus Table

Backfocus configuration table




The SBIG Universal Driver is distributed via SBIG Driver Checker 64 on Windows, and via an installer on Mac OSX. Keeping your drivers up to date is the best way to ensure your camera runs smoothly, so remember to update your drivers regularly.

Download (Win) Download (OSX)


CCDOPS is a free program that operates USB based SBIG cameras.

Download (Win) Download (OSX)

Software Development Kit

Software development kit for the Windows platform.

Download (Win)

Also Available