After considerable research, we can now offer our 'Super' version of the 10 inch f12 Zerochromat. It has been optimised for the range 420nm to 700nm. The 0.8 degree field of view (42.5mm) is perfectly flat to the edge. The tube length is 2100mm, and 405mm diameter. It comes with an 8 x 60mm right-angle finder and is fitted with a Losmandy style dovetail. The 2 inch Moonlite focuser is motorised, and has 4 1/4 inches travel. Overall weight is 20kg.
The 'Super' version looks identical to the standard 10 inch Zerochromat, but has different internal optics. The tolerance to decentration is very similar, so it is as easy to use. An important feature of all Zerochromats is Atmospheric Dispersion Control, which is very simple to employ.
We are able to offer the 10 inch f12 'Super' version, delivered to mainland USA for US$18500. All this for performance very similar to traditional Super ED 10 inch instruments. Delivery is currently 5 to 6 months.
Spot sizes vs wavelength are given below, also the MTF: