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Preface

Photographic Objectives

Objective Mounts and System of Stops

Table of Standard Mounts

Special Mount A

Special Mount B

Focusing Collar

Graduation of the stops of the mounts fitted with iris-diaphragms in terms of the diameter expressed in millimetres

The System of Stops of the Royal Photog. Society of Great Britain

Tables of Diameters of Stops

Dr. P. RUDOLPH’s System of Slops

Tables of Diameters of Stops

Graduation of the apertures of the rotating diaphragms in terms of the relative rapidity

Characteristic features of the various types of objectives

The Planar

The Unar

The Protars

Protar-lenses and Double-Protars

Remarks respecting the particulars contained in the list of prices

The Planar, Series I^a

The Unar, Series I^b

The Protar 1/8, Series II^a

The Protar 1/9, Series III^a

The Protar 1/18, Series V

The Protar-lens, Series VII

The Double-Protar, Series VII^a

Protar-sets C and D

Application of the Double-Protar to the purposes of a convertible set of objectives

Tables of stops and foci for Protar-sets

Leather Cases for objectives in Standard Mounts

Hand-Cameras fitted with our photographic objectives

Tele-photographic Objectives

Construction and general features of the Tele-photographic Objective

Tele-photographic Tube-mount

Tele-positive

Tele-negative

Tele-photographic Combinations

Specifications of Tele-photographic Combinations

Coloured Screens for Landscape Photography

Optical Appliances for Photo-mechanical Printing Processes

Our Printing Laboratory

Copying Lenses

List of Copying Lenses

Special Stops for Autotype Printing

Reversing Prisms

Adapter with revolving collar and clamp

Light-filters

Focusing Glasses and Focusing Microscopes

Nature of glasses employed by us

Optical Tests of our photographic appliances

Objective Shutters for Time and Instantaneous exposures

Automatic Iris-shutter

Adjustable Iris-shutter

Detective Iris-shutter

Prices of the Iris-shutters

Linhof’s adjustable Leaf-shutter

Linhof’s adjustable Stereoscopic Shutter

Complaints