At 03:33 5/29/02, Albert wrote:
I'm in San Francisco right now, visiting my penpal of 6 years from
singapore, who came here to the states.. This is the first time we met
face to face... And the meter on my Om1n is broke :-( Is this murphy's law?
Is there anything I can do to fix it myself, or not really?? Hmm.. at
least it's a mechanical camera, so I can still take pictures with it.. I
guess it's sunny16 for me tomorrow... But a working meter is a lot more
accurate.. arrrg...
Albert
With color negative, it's not that critical . . . if in doubt, overexpose
slightly. Here's the "Sunny-16" rule with how to compensate for less than
direct sunlight:
For average "frontlighted" subjects . . .
1. Bright or hazy sun with distinct, sharply defined shadows. Sun is
either direct or sharply outlined through the weak haze: 1/(film speed) @ f/16
2. Weak hazy sun with soft shadows; sun is visible, but diffusely outlined
in heavier haze: 1/(film speed) @ f/11
3. Cloudy bright with no shadows; sky overcast or in shadows from
scattered clouds; sun can be located as a bright spot in the clouds:
1/(film speed) @ f/8
4. Heavy overcast; sky completely covered with thick clouds; no bright
spot revealing sun location, however no extremely dark areas from "storm
clouds" either: 1/(film speed) @ f/5.6
5. Open shade; in shade from large nearby objects (e.g. buildings), but
not from overhead. Lighted by about 60 degrees or more of unobstructed
sky: 1/(film speed) @ f/4
6. Deep shade; under overhead shade with near zero skylighting (e.g. under
tree[s]) but not shaded from indirect daylight on more than one
side: 1/(film speed) @ f/2.8. If under forest canopy with little indirect
daylight except what filters through trees: 1/(film speed) @ f/2. This is
a difficult exposure to estimate.
7. Correction for 1-2 above on light sand or snow: reduce exposure by one
stop due to high ground reflectivity.
8. Correction for 1-2 above for sidelighted close-ups (entire subject 1/3
- 2/3 sidelighted): increase exposure by one stop.
9. Correction for 1-2 above for backlighted (3/4 - fully backlit)
close-ups that nearly fill the frame: increase exposure by two stops. For
backlit at a distance (sunlit background): increase exposure by 1 - 1.5
stops to keep from completely blowing out the background; subject will be
slightly darker.
-- John
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