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05/18

Catseyecollimation Logo 75mm x 26mm - 1200 DPI clbr 8k Complete SX SMLLLogo 8k Complete SX SMLLLogo OPT-front-page-logo_6bfc163f-8f79-44ad-82ad-053c67b30457_250x Capture zwo_brand_logo ISSUE57 PUBLISHED

TRIUS-SX-46

Trius SX-46 full-frame camera

The Trius SX-46

 

The SX-46 is a full-frame CCD camera with a 16.7 megapixel sensor. It utilises the popular KAF-16200 sensor, which has an 'APS-H' format array of 27 x 21.6 mm, 6uM square pixels. The use of a full frame chip requires a mechanical shutter and so SX have developed a custom 'roller blind' assembly that uses mini stepper motors to provide an extremely uniform shutter action.

SX-46-small

The SX-46 incorporates many special features that improve on some other KAF-16200 based products:

 

1) A multi-coated synthetic sapphire input window. The extremely high thermal conductivity of sapphire (about 25x better than glass) eliminates the need for a window heater, by conducting waste heat from the camera body to the entire window surface. Dewing of the window is extremely unlikely to occur, even with maximum CCD cooling.

 

2) A stepper driven roller blind shutter with extremely uniform illumination of the sensor, even at 0.1 second exposure time. The shutter is designed for robust long-term use, but is also very easy to service or replace, if necessary.

 

3) A compact, dry argon filled CCD chamber, with O ring sealing. No desiccant to regularly replace. The window is easy to clean with an air duster or soft cloth.

 

4) Built-in LED flood illuminator for RBI elimination (trapped electrons from previous images).

 

5) Fast image download time - approximately 6.5 seconds for a full 16.7 megapixel image.

 

6) A three stage Peltier cooler to give better than -50C below ambient, with an efficient temperature controller to keep power consumption to less than 2 amps at 12v DC.

 

7) Standard 'Trius' 3 port USB 2 hub built-in.

 

8) A compact overall size of 136 mm square and 70 mm deep (+ handles). Only 1.7 Kg total weight.

Camera performance:

 

Active area                                                    27 x 21.6 mm (APS-H format)

 

Number of pixels:                                          4540 x 3640

 

Pixel size:                                                      6.0 x 6.0 uM

 

Read noise:                                                   9e typical

 

Full well capacity:                                          Approx. 41,000e

 

Peak QE:                                                      Approx. 58% at 530nM

 

Camera gain:                                                0.6e / ADU