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  1. #11

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    Also, if using flash, the ISO need not be set at 1600 because of low light situation. You are providing a high light situation with the flash. using your post #3 hypothetical you could easily use ISO 100
    "There are a great many things I am in doubt about at the moment, and I should consider myself favoured if you would kindly enlighten me. Signed, Doubtful, off to Canada." (BJP 1914).

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    Bill

  2. #12

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    The 1/50 isn't too low a shutter speed for hand holding unless you use a telephoto lens. With flash and if the ambient light is low then the shutter speed won't make a different as the entire exposure is done with the flash that has short duration. The 1/50 is the fastest shutter speed to use with flash on the M6. You can use slower shutter speed if you wish. At ISO 1600 which is very fast film the ambient light would play a rather important role.

  3. #13
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    Quote Originally Posted by roberttalbot View Post
    ahhhh I see. Makes sense in regards to when you say "how long the flash fires" and you're saying that the TTL is able to read the distance, so the TTL capability on the flash knows how far the subject is from the flash therefore applying the particular length of time the flash fires?

    This is very interesting, and this makes the most sense to me in our exchange. I need to go out shoot in different light situations in the TTL mode, and wait for development. For me I need to know as much as I can before shooting with a new "tool"
    Your ability to link will be limited on APUG until you have been around a bit longer and made a few more posts. That was instituted to help stop the robo-spammers.

    TTL doesn't read distance. It just measures how much light from the flash has bounced back from the subject. When enough has bounced back to properly expose the film, it turns off the flash.

    The distance affects how much light from the flash reaches the subject and how much light bouncing from the subject reaches the camera - if you are far away the light spreads out more.

    Are you using the flash as your source of light, in situations where there isn't enough ambient light to work? If so, the TTL flash will work great.

    If you are trying to use TTL flash to "fill" or balance lighting in situations where there already is enough light to expose the film, you will most likely just get frustrated. The focal plane shutter on the camera limits your flash use to speeds of 1/50 second or slower. This means that apertures need to be small and/or films need to be slow in order to expose properly for ambient light. If you do that though, the flash will often need to be too close to the subject.

    In addition, the ambient light will tend to confuse the TTL metering, and cause the flash to shut off prematurely.

    If you are going to use fill flash with a camera that requires a 1/50 second shutter speed for flash, most often you need to use the flash in a fixed position, in manual mode, using either a guide number calculation or a flash meter.
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  4. #14
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    Quote Originally Posted by cowanw View Post
    Also, if using flash, the ISO need not be set at 1600 because of low light situation. You are providing a high light situation with the flash. using your post #3 hypothetical you could easily use ISO 100
    +1

    The only reason to use ISO 1600 is if that is the film you have. If you are choosing a film for use with flash, I'd recommend a slower film.
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

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