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  1. #1
    Join Date
    Dec 2007
    Posts
    2,562

    Flash sync problem????

    I thought my shutter was going on my Sony A100. I was trying to test my wireless flash when I set the speed at 200 the bottom 1/4 of the frame was black. Then when I increased the speed to 250 half the frame was black. When I set the speed to 320 3/4 of the fram was black. I removed the flash transmitter and tested it and it was working fine. I am going to test the camera outside tomorrow.


    Frank

    Name:  Flash Test speed 200.jpg
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Size:  44.8 KB

    Name:  Flash Test speed 250.jpg
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    Name:  Flash Test speed 320.jpg
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    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  2. #2
    Join Date
    Dec 2006
    Location
    Guelph, Ontario
    Posts
    1,903
    Yup off camera flash sync without TTL is limited to the body.
    On the a700 is its 1/200 and 1/250 with SSS disabled.
    Not sure about the a100.
    Some bodies do not get the maximum 1/200 and they need to go as low as 1/160 as well.
    My 7D is limited to 1/250.
    Canon EOS 7D

    flickr
    FLUIDR

  3. #3
    Join Date
    Dec 2006
    Location
    Guelph, Ontario
    Posts
    1,903
    Bob Atkins says the a100's Flash sync is 1/160s (1/125s with Super SteadyShot on)

    http://www.bobatkins.com/photography...00_review.html
    Canon EOS 7D

    flickr
    FLUIDR

  4. #4
    Join Date
    Dec 2007
    Posts
    2,562
    When I use it wireless I can sync with any speed. I will do more testing tomorrow.

    Thanks
    Frank
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  5. #5
    Join Date
    Dec 2006
    Location
    Guelph, Ontario
    Posts
    1,903
    That's wireless HSS with TTL. It only works if the flash supports wireless HSS.
    With wireless triggers and receivers, it is limited to the sync speed of the camera since it is not TTL.

    So the only way you can use whatever sync speed you want is to get a bunch of Sony flashes like the 42,56 and 58 and use the Sony wireless system instead.
    Last edited by Elisha; 07-05-2010 at 08:26 PM.
    Canon EOS 7D

    flickr
    FLUIDR

  6. #6
    Join Date
    Dec 2007
    Posts
    2,562
    Thanks Again
    Frank
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  7. #7
    Join Date
    Dec 2007
    Posts
    1,760
    so slow it down........the picture is made by the flash anyway...not by the speed....wireless takes some time to get from pioint a to b

  8. #8
    Join Date
    Dec 2007
    Posts
    1,760

  9. #9
    Join Date
    Dec 2007
    Posts
    2,562
    Great link I need to read this again.

    Thanks
    Frank
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

  10. #10
    Join Date
    Dec 2007
    Posts
    2,562
    Here is a link I found that explains how the shutter works. http://www.rpphoto.com/howto/view.asp?articleID=1026

    Frank
    Sony A77
    Sony A580
    Sony A 100
    Maxxum 400si.
    Sony 18-70 Kit Lens
    Minolta AF 35-70
    Minolta AF 50 f/1.7
    Tamron 70-300 f/4-5.6 Di LD
    Tamron 60mm Macro
    Tamron 17-50 f/2.8
    Tamron 2x Converter
    Sony HVL-F42AM
    Quantaray 70-300 4.5-5.6 Macro
    Slingshot 200 Bag



    http://www.flickr.com/photos/22083244@N06/

    http://s305.photobucket.com/albums/nn219/sparkie1263/

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