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Re: [OM] Sunny 16?OT re. loony f/4

Subject: Re: [OM] Sunny 16?OT re. loony f/4
From: Acer Victoria <siddim01@xxxxxxxxxxxxxxx>
Date: Sat, 26 Jun 1999 12:09:57 -0700 (PDT)
On Sat, 26 Jun 1999, Terry and Tracey wrote:

>> >> I would guess that since half a moon gives you half the light, then
>you'd
>> >> need to open up one stop.
>> >>
>> >Wouldn't half moon give 1/4 of the light?
>>
>> Am I missing something? Since the light is uniform across the moon's
>> surface, methinks the relationship is linear. I could very well be wrong.
>> Please enlighten me ASAP as tomorrow I have plans on shooting (although
>> it's a full moon....)
>
>Doesn't light "decay" at a square ratio? Hey, I could be wrong here.....

Yes, it does, but how would that relate here? Using the same reasoning, I
would have to (falsely) say that my distance from subject lit by ambient
would change exposure, which would not be correct. Or, what you're saying
here--and how I understood it--is that Sunny16 (or Loony4) is false as
illumination will fall with the square of the distance. 

/Acer Victoria
--
"When you think you've tried every road / Every avenue / Take one more
look / At what you found old / And in it you'll find something new / ...."
                                                --Depeche Mode
"video meliora proboque, deteriora sequor."     --Ovid
http://student.ucr.edu/~siddim01/               <--don't visit just yet!





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