MA816 Siedentopf type trinocular head

Trinocular Seidontoph head, inclined at 30 degrees. I.P. adjustment 53 mm to 75mm, graduated diopter on left eyetube (Accepts 30.00 mm I.D. eyepieces) Photo tube with 80/20 beamsplitter. 100% to eyetubes or 80% to phototube and 20% to eyetube in Black