Re: Sunny Day Rule

[P3D Dr. George A. Themelis <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

>I remember an memory device (rule), which looks pretty close to 'sunny
>day' and is generally applicable to all speeds- For a normal sunny day 
>(not snow or beach, not overcast), just set lens at f16 and shutter
>speed at 1/ASA. 

That _is_ the sunny day rule! 

>Then go up and down from there as particulars of actual
>situation dictate. Open up a stop for clouds, Close down a stop for snow
>or sand (I have no recommendation for 'snow AND sand', a situation that
>we never see in Northern California unless you have a 200 mile field of
>view). - Norm

Sorry, it was a typo (I wrote "sun and snow" while I meant to write "sand 
OR snow", just as the Fuji box writes). 

For the Realist and 100 ASA film, follow the Revised DrT rule :-):
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* 1/150 @ f16  sand or snow under bright sun
* 1/100 @ f16  sunny day rule (front bright sunlight, distinct shadows)
* 1/100 @ f11  hazy sun, soft shadows, side lighting
* 1/100 @ f8   cloudy & no shadows, sunset w/sun, moon
* 1/50  @ f8   heavy overcast, bright shade
* 1/50  @ f5.6 dark shade, twilight at sunset
* 1/25  @ f5.6 Skyline just after sunset, tree shade
-- Limit of hand-holding, use tripod for the following -------------------
* 1/5  @ f8    N. window light, forest shade, shows w/carbon-arc spotlight
* 1/2  @ f8    Brightly illuminated offices, store windows, sporting events
* 1    @ f8    Minimum office illum., city streets, stage shows w/avg. lig.
---------------------------------------------------------------------------
I borrowed the low light situations from "Harris Photoguide" for Existing
Light, copyright 1989.

-- George Themelis


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