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出典:Wikipedia
出典:『Wikipedia』 (2008/09/07 14:26 UTC 版)
The Compound shutter is a mechanical leaf shutter for photographic cameras introduced in the late 19th century, usually used between lens components. A typical Compound shutter may have settings for T (Time), B (Bulb), and times from 1 second down to 1/100th or less.
compound shutter