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Simple, Powerful, and Low Cost.

These were the design goals for the ST-402ME camera: We wanted something simple and easy to use yet powerful enough to carry the
"ST" model prefix. The new ST-402ME is seen at right equipped with the optional T-thread to C-mount adapter ring and lens. For use at
the telescope, a 1.25" nosepiece screws into the T-threads of the front plate.

The ST-402ME uses the same Microlensed, Blue Enhanced, Full Frame KAF-0402ME CCD as the ST-7XME camera. The array is 765 x
510 pixels at 9 microns square.   The same technology that is used to achieve such high quantum efficiency in the KAF-3200ME CCD is
also used with the same effectiveness in the KAF-0402ME CCD. With a peak QE of nearly 85%, this camera bows its head to no other
when it comes to recording faint detail in dim objects.

A full frame download takes less than a second with the new USB 2.0 electronics. Focus mode updates the computer screen about 2X
per second. The small size and light weight makes this camera very easy to handle and set up. A custom internal filter wheel and
shutter lets you take dark frames and tri-color images automatically. Best of all, the low noise and extraordinary QE of the KAF-0402ME
CCD makes this one of the most sensitive CCD cameras available to amateurs at any price. Simply put, there is nothing that can touch it
in its class, except of course the dual sensor, self-guiding ST-7XME camera.

An internal filter wheel with custom RGB+C color filters is available as an option for RGB or LRGB color imaging with the ST-402ME. This
filter wheel uses the same custom designed high quality dichroic filters that we developed for the ST-7/8/9/10 "E" and "ME" cameras.
The filters are designed specifically to yield a proper balance of both OIII and H-alpha emission line intensity from planetary nebula while
at the same time giving an accurate while balance from continuum light from solar type stars in the same field.   The Mars image above
showing a violet haze over the north pole (south is up) and a diffuse yellow dust storm in the southern hemisphere was taken by Ed
Grafton of Houston, Texas on October 23, 2005, using an C14 telescope and ST-402ME camera.
Typical Specifications

All specifications are typical.
The standard ST-402ME includes Class 2 CCD with no column defects, female t-threads on front cover of camera
body, 1.25" t-thread nosepiece, internal shutter, 12V power supply, USB cable, relay cable, and operating software.

CCD CCD Kodak KAF-0402ME Pixel Array 765 x 510 pixels CCD Size 6.9 x 4.3 mm Total Pixels 390,000 Pixel Size 9 x 9 microns Full Well Capacity ~100,000 e- Dark Current 1e¯/pixel/sec at 0° C Antiblooming Optional	System Specifications Cooling - Enhanced Single Stage Thermoelectric, Active Fan, -30 C from Ambient Typical Cooling - Standard Single Stage Thermoelectric, Active Fan, -20 C from Ambient Typical Temperature Regulation ±0.1°C Power 12VDC Power supply included Computer Interface USB 2.0 (USB 1.1 compatible) Computer Compatibility Windows 98/2000/Me/XP Mac OS-X
Readout Specifications Shutter Electromechanical Exposure 0.04 to 3600 seconds, 10ms resolution Correlated Double Sampling Yes A/D Converter 16 bits A/D Gain 1.5e- unbinned 2.0e- binned 2x2, 3x3 (1.0e- and 1.4e- for ABG CCD) Read Noise 13.8e¯ RMS Typical Binning Modes 1 x 1, 2 x 2, 3 x 3 Pixel Digitization Rate Up to 800.000 pixels per second with USB 2.0 Full Frame Download <1 second	Physical Dimensions Optical Head 5 x 4 x 2.5 inches (including fan) CPU All electronics integrated into Optical Head, No CPU Mounting T-Thread, 1.25" nosepieces included Weight Approx. 20 oz. (0.6kg) Backfocus (C-mount compatible) 0.69 inches