We have redesigned the main board of our Trius cameras and improved both the read noise and download times. The new range has been named ‘Trius PRO’ and is now available for purchase. In addition, a new Trius PRO camera has been added to the range. This is the PRO-834, which uses a Sony ICX834 CCD with 12 megapixels. This very high resolution chip has 3.1 micron square pixels and is very well matched to the short focus, fast optics, of many modern telescopes.