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Richard | all galleries >> Scientific (macro, high speed,.etc) >> GALLERY: RADIATION > Large 11 inch thorium glass lens element
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14-Jun-2021

Large 11 inch thorium glass lens element

This is a large 11 inch wide 13lb lens element incorporating
thorium oxide to act as an "ED" lens prior to the introduction
of fluoro-crown glasses after the 1960's. This comes from a
Kodak 48 inch Aero Ektar lens produced for aerial surveillance.

Panasonic Lumix DMC-G1
1/80s f/7.1 at 14.0mm iso200 hide exif
Full EXIF Info
Date/Time14-Jun-2021 05:42:45
MakePanasonic
ModelDMC-G1
Flash UsedYes
Focal Length14 mm
Exposure Time1/80 sec
Aperturef/7.1
ISO Equivalent200
Exposure Bias-1 1/3
White Balance0
Metering Modematrix (5)
JPEG Quality
Exposure Programaperture priority (3)
Focus Distance

other sizes: small medium large original auto
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