idea中黃色燈泡有什麼用_什麼是相機上的「燈泡模式」？

idea中黃色燈泡有什麼用 If you’ve turned the shutter speed dial on your camera past 30 seconds, you might have noticed the strangely named 「Bulb」 mode. This is a throwback from the first film cameras, but it’s

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