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[OM] an old Modern Photograpy f-stop recommendation for fireworks.

Subject: [OM] an old Modern Photograpy f-stop recommendation for fireworks.
From: Fernando Gonzalez Gentile <fgnzalez@xxxxxxxxxxxxx>
Date: Sun, 19 Mar 2006 02:21:39 -0300
Hi all,

I recall having seen here very good photos on fireworks.
Never attempted to do so myself, but it seems that when younger I had
planned to do so since found, lost into some photographic information, the
following table, hand-copied from Modern Photography.
But seems something is missing: exposure.
Perhaps someone here could explain me what I once understood but forgot.
I'm copying the table below:

Recommended Apertures for Fireworks
ASA 25    -> 4.5
ASA 50    -> 5.6 1/3
ASA 64    -> 5.6 2/3
ASA 100  -> 8 1/3
ASA 160  -> 11
ASA 200  -> 11 1/3
ASA 400  -> 16 1/3
ASA 1000 -> 22 1/2 

TIA,

Fernando.


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