[pure-silver] Re: estimating filter factor: gray card?
- From: "Ralph W. Lambrecht" <info@xxxxxxxxxxxxxxxx>
- To: PureSilverNew <pure-silver@xxxxxxxxxxxxx>
- Date: Sun, 01 Oct 2006 12:38:34 +0200
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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