James's Light Meter Collection: Bertram Super Bewi Precision
Bertram Super Bewi Precision click for manual
Maker: Bertram
Model: Super Bewi Precision
Circa: 1930
Measure type: Optical / extinction

In photos it looks like my Drem Instoscope, but it's about twice as large and (IMO) easier to use, even with the sea of print on the barrel. For instructions on how to use this, click on the PDF icon above or refer to the Instoscope.

According to Ed van der Aa at ExposureMeters.net, the name "Bewi" was derived from "Bertram Wilhelm," one of the Bertram brothers who ran the company.

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