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Thread: How to test working condition of the AF assist beam in external flash units?

  1. #1
    Member
    Join Date
    Sep 2004
    Location
    JE, Singapore
    Posts
    350

    Question How to test working condition of the AF assist beam in external flash units?

    Hi fellows, a quick qn here: may I know how to test whether the external AF assist beam of an external flash unit is working or not? Sometimes the ambient light while buying, is quite bright so it won't get triggered so quite hard to tell its condition. Some flash got a button to test-try the main flash itself, but is that suppose to test-fire the AF assist beam as well, or got other ways to verify?

    Thanx in adavnce.

  2. #2
    Member agws1970's Avatar
    Join Date
    Sep 2002
    Location
    North East Singapore
    Posts
    365

    Default Re: How to test working condition of the AF assist beam in external flash units?

    Bring a camera and try it with the lens cap on the lens. If need to, try under the table.

  3. #3

    Default Re: How to test working condition of the AF assist beam in external flash units?

    Look for in-depth technical and user reviews.

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