005926 Accession Number: 005926

Description

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: AFTER FINAL POLISHING LENS IS TESTED WITH SODIUM MONOCHROMATIC LIGHT. THE LENSES MUST CONFORM TO AN ACCURACY OF ONE TWO MILLIONTH OF AN INCH OVER ENTIRE SURFACE. GAUGES HAVE ALL BEEN MADE AT STROMLO. DR. ALLEN. (NEGATIVE BY E. CRANSTONE).

Details

Accession Number

005926

Photographer

Edward Lefevre (Ted) Cranstone

Classification

Photograph

Object Type

Negative

Physical Description

Colour: Black & white

Date Made

26 February 1941

Place Made

Mount Stromlo

Whole/Part

Whole

Item Count

1

Copyright

Copyright expired - public domain

Conflicts

Places

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Photograph 005921 Second World War, 1939-1945

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: DR. ALLEN CUTTING THE LENS BLANK FROM THE GLASS WITH A BRASS CUTTER WHICH ALTHOUGH COMPARATIVELY SOFT IS USED TO CUT THE GLASS WHICH IS ONE OF T

005920

Photograph 005920 Second World War, 1939-1945

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: DR. WOOLLEY, DIRECTOR OF THE COMMONWEALTH SOLAR OBSERVATORY TAKING A SIGHT THROUGH COMPLETED INSTRUMENT. (NEGATIVE BY E. CRANSTONE).

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Photograph 005916 Second World War, 1939-1945

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: COMPLETED LENS IS FITTED TO PARTICULAR GUN SIGHT. MR. H. BANHAM - SENIOR MECHANIC ON THE PERMANENT OBSERVATORY STAFF FITS THE LENS TO A MILITARY

005919

Photograph 005919 Second World War, 1939-1945

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: NEW OPTICAL SYSTEMS ARE CONTINUALLY BEING DEVISED. HERE IS DR. WOLLEY AND MR. BANHAM DISCUSSING A NEW PROJECT. (NEGATIVE BY E. CRANSTONE).

005927

Photograph 005927 Second World War, 1939-1945

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: SPHERICAL IRON BLOCKS ARE CAREFULLY TURNED TO EXACT MEASUREMENTS FOR USE IN MOUNTING LENS BLANKS FOR GRINDING. TED HOLMES OF OBSERVATORY STAFF A