Introducing the Duplex Questar
Introduction of the Duplex.
1 Page Vertical

Sky and Telescope, October 1966, IFC.
2/3rds Page Vertical

Natural History, October 1966, 75.
Scientific American, October 1966, 48.
Modern Photography, November 1966, 14.
Introduction of the Duplex.

Sky and Telescope, October 1966, IFC.

Natural History, October 1966, 75.
Scientific American, October 1966, 48.
Modern Photography, November 1966, 14.