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Thread: X / M

  1. #1

    Join Date
    Jul 1999

    X / M

    I have an older version of the Nikkor 300mm f/9, which has a switch which can to ggle between "X" and "M". What is the meaning of the settings - I assume they ar e to do with flash sync?, and what is the correct setting for normal daylight ph otography? Does the setting affect the shutter speed in any way?

  2. #2

    X / M

    X is for electronic flash, M is for flash bulbs. Pat

  3. #3

    Join Date
    Sep 1998

    X / M

    To amplify a bit more, X sync, as mentioned, is for electronic flash. The flash is fired when the shutter blades are all the way open. M sync first fires the flash bulb, and lets it reach its maximum brightness, then about 20 milliseconds later opens the shutter.


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