[pure-silver] Re: estimating filter factor: gray card?

Bruce

I hope my note made it. I still can¹t see my own mail postings here, which
is very annoying, but not PureSilver¹s fault.





Regards



Ralph W. Lambrecht

http://www.darkroomagic.com







On 2006-10-01 04:50, "Camclicker@xxxxxxx" <Camclicker@xxxxxxx> wrote:

> In a message dated 9/30/2006 10:18:43 P.M. Eastern Daylight Time,
> sstoney@xxxxxxx writes:
>>  
>>> No,  if the filter factor is 2 x you would open 1.41 stop not 1,
>>  
>> 
>> 
>>  
>> !!!! This is very confusing.  Why do they call the filter factor 2  if it's
>> really 1.4?
>>  
>> 
>>  
>> --shannon
>  
>  
> Ahhhhh, I don't know.  Maybe Ralph, Richard or someone knows.
>  
> Bruce Osgood
> Camclicker @ aol.com
> Brooklyn, NY.
>

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