Results 1 to 5 of 5

Thread: Outdoor Flash Problem

  1. #1

    Default Outdoor Flash Problem

    Hi guys,

    Need your help on this:

    I was taking a portrait shot under a bright sky in A-priority mode. The meter reading was f/3.5, 1/1000 secs, ISO 100.

    Image taken. The sky was ok but the model was under-exposed.

    So I use a fill-in flash but the flash max sync speed can only go upto 1/200 secs. If I use this speed the sky will be over-exposed this time.

    I switched to Manual mode and set the camera speed to 1/200 secs. It gives me a aperture of f/11 (large DOF) which I do not want.

    Can anyone enlighten me how can I maintain f/3.5 within the flash max sync speed in this kind of situation?

    Thanks in advance.

  2. #2
    Moderator catchlights's Avatar
    Join Date
    Sep 2004
    Location
    Punggol, Singapore
    Posts
    21,902

    Default Re: Outdoor Flash Problem

    Quote Originally Posted by LFC25 View Post
    Hi guys,

    Need your help on this:

    I was taking a portrait shot under a bright sky in A-priority mode. The meter reading was f/3.5, 1/1000 secs, ISO 100.

    Image taken. The sky was ok but the model was under-exposed.

    So I use a fill-in flash but the flash max sync speed can only go upto 1/200 secs. If I use this speed the sky will be over-exposed this time.

    I switched to Manual mode and set the camera speed to 1/200 secs. It gives me a aperture of f/11 (large DOF) which I do not want.

    Can anyone enlighten me how can I maintain f/3.5 within the flash max sync speed in this kind of situation?

    Thanks in advance.
    you can't go beyond max sync speed unless your camera and flash support high speed sync.

    another way to work around is use ND filter over your lens, it will bring down shutter speed to max sync speed, but it will also decrease the flash light reaching the sensor, you may need more powerful flash.

    hope this help.
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  3. #3

    Default Re: Outdoor Flash Problem

    Thanks for your reply, catchlights

  4. #4
    Senior Member
    Join Date
    Mar 2010
    Location
    Singapore
    Posts
    3,786

    Default Re: Outdoor Flash Problem

    You can also do 2 exposures, one for the sky one for the subject, then use photoshop, stacking the subject exposure over the other, and use layer mask to hide the entire later, then reveal only the subject. May not look as nice as a ND filter shot with flash but at least it won't cost you a cent. (assuming you have the necessary software)

  5. #5

    Default Re: Outdoor Flash Problem

    yes, that's a good idea. Will give it a try.

    Thanks, Cowseye

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •