this is our photovisuel version with 23% C.O., 1/10 wavefront p.t.v. in the system, 96% coating, active cooling, rear polished quartz mirrors, dew shield, 2" JMI focuser, case etc.
I used a NIKON D1X with big CCD chip to check the illumination and there is no vigneting at all visible on the image
2 last pieces left for next several month's
each goes for US $ 2,190 include shipping inside the USA