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Author Topic: which one lighthouse use meso radial 1125mm focal length lens ?  (Read 3357 times)

Offline fluorite

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which one lighthouse use meso radial 1125mm focal length lens ?
« on: November 01, 2017, 03:03:15 PM »
which one lighthouse use meso radial 1125mm focal length lens ?
which one lighthouse use Hyper radial 1330mm focal length lens ?

By the 1920s, high-intensity lamp technology had rendered lenses of this size obsolete.


Offline Tatiana

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Re: which one lighthouse use meso radial 1125mm focal length lens ?
« Reply #1 on: July 11, 2020, 06:30:00 AM »
which one lighthouse use meso radial 1125mm focal length lens ?
which one lighthouse use Hyper radial 1330mm focal length lens ?

By the 1920s, high-intensity lamp technology had rendered lenses of this size obsolete.

Meso-radial - Farol de Abrolhos‎, Farol da Ilha Rasa‎ (only two lighthouses)
Hyper-radial - Makapu`u, Cape Race, Nolsoy, Cabo de Sao Vicente, etc.

 

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