THE POWELL & LEALAND No 1

MAKER: POWELL & LEALAND

ACCESSORY: Watson Holos Oil Immersion Substage Condensor

Authors: Jurriaan de Groot & Barry Sobel

Editor: Joseph Zeligs

A Watson Holos Oil Immersion Condenser with n.a. of 1.30 and a iris diaphragm, adapted for mounting on the P & L No 1 substage.