Trinocular Head : With a binocular head and a vertical phototube for photomicrography, microprojection or closed circuit TV pickup. A) Small B) Big
VN-49 / 10071-10072
- VN-51 / 10074 - As above Heavy design and adjusting ring. Superior Quality (S.Q.) , VN-52 / 10075 - As above with Coated Objectives (C.O)