Tal-M 80mm f/6.6 reflector o.t.a. features helical focuser with built-in 30mm finder lens. Very solid aluminum tube, adjustable aluminum mirror cell, 1" diagonal. Mirror has some sort of internal crack, about 1/2" area, close to the edge, that causes sort of spike in defocused star pattern, but is undetectable in focus at lower magnifications. Otherwise in very good condition. The 30mm lens
slides in and out the light path, giving about 4.5 times larger
linear field than the mirror with any given eyepiece. Can be used
as "double finder" for 12" Newtonians and larger, $60 shipped.