Archived posting to the Leica Users Group, 2000/01/20

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Subject: Re: [Leica] Exposure for eclipse of moon ?
From: Ken Iisaka <kiisaka@pacbell.net>
Date: Thu, 20 Jan 2000 22:28:57 -0800

> A thermonuclear-pumped flash? Have you no concern for the environment?
Just
> think about the noise that thing will make, not to mention small
secondary side
> effects such as fall out! No, the right way to go is to use a GN 11
ISO 100/m
> flash and the new  50mm f:0.000000036 Noctilux. :)
>
> Now back to my well-deserved lurkerhood.

Of course, it will take about 2.6 seconds for the light to travel to the
moon and back, so you have some interesting synchronisation problem!!!

The theoretical limit of an aperture is 0.5, though.