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Re: [OM] Ponderings about Full Synchro Flash

Subject: Re: [OM] Ponderings about Full Synchro Flash
From: Pauls0627@xxxxxxx
Date: Thu, 16 Dec 1999 15:12:52 EST
In a message dated 12/16/99 3:05:54 PM Eastern Standard Time, HI100@xxxxxxx 
writes:

> A common question on this list is what reflectivity is used for simulating 
>  film reflectivity  on the shutter curtain and often people say that it is 
> the 
>  same as an 18 0rey card. One of the Minolta patents on regular OTF 
> metereing 
>  (US patent 3687026), specifies that a value of 26.7 hould be used. 

I always felt that it was quite a coincidence when people said that the 
reflectivity of film was all that close to 18 0ray.

Paul Schings

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