The W-Tel can work in two different configurations: an F/2.88 (F/3.24, see below) primary focus for wide field imaging, and a Cassegrain F/12.5 focus. Switching from one configuration to the other will only consist in plugging or unplugging the secondary mirror holder. The whole mechanics have been designed and manufactured by the department of mechanics at OCA. The telescope is driven by a control computer, accessible through an internet interface, to allow for remote observations.
The F/2.88 focus will be equipped with a 4096 × 4096 SBIG STX-16803 CCD camera and a set of standard filters. The camera optics is a custom 3-lenses Wynne corrector, resulting in an F/3.24 beam.
This will lead to a pixel scale of 0.55′′/pix and a 37.6′ × 37.6′ field of view. The 20th magnitude is expected to be reachable at 5σ with a 1 minute exposure. This configuration will be dedicated to wide field imagery and transit photometric surveys.
The F/12.5 focus will receive a SBIG ST8XME CCD camera. This will provide for a 3.6′ ×2.4′ field of view, with a pixel scale of 0.143′′/pix. Magnitude 17 is expected to be reachable at 5σ with a 1 minute exposure. This configuration will be used for polarimetry and photometry.
You can find here everything you need about the equipment and optical configurations available at the C2PU W-Telescope.