Acquaintance seying
Figure 1
Occasionally a book on a prawn wrote his shooting parameters, "sunshine 16 rule, in short: Aperture, exposure time 16 adopts the reciprocal of the film speed.
The rule for determining when shooting with light exposure. Photograph a full moon also to comply with this rule. ”The other day of a night, think of the camera in black and white, there are some pieces of the volume with the camera and the top shelf, just this night was a full moon, just testing Sun 16 law.-good tripod, 300MM end alignment on the Moon, Aperture, shutter speed, 16 1/350, selected because of air pollution in Beijing, estimated and mountains 1/400 sec effect almost, took a picture of the Moon, and then again at the Palace Hotel 300MM, a second exposure, as is the central focus of average metering, taking into account the comparative dark, around minus one retaining exposure, exposure approximately 8 seconds, all out of the hierarchy is also good, but unfortunately the scan after dark level is lost (see Figure 2).
Acquaintance seyingFigure 2
In order to compare the effects of various shutter, I made another attempt, the camera is set to four different exposure, with four speed took the Moon (see Figure 3). as can be seen in Figure 2, Sun 16 law is relatively accurate, if you want the Moon brighter some can increase the exposure of the half-block (1/250), 1/125 second level is a lot worse, 1/60 to see levels, I look at photos, or you can see a light levels, no scanning later.
Figure 3
(Source: Hummingbird photography)
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