A&P what is back focus?

Discussion in 'Lifestyle' started by Nickos, Sep 26, 2004.

  1. Nickos

    Nickos Active Member

    Joined:
    Aug 26, 2002
    Messages:
    125,132
    Likes Received:
    22
    Location:
    NW MN
    i take it its not a good thing
     
  2. bosox

    bosox *

    Joined:
    Aug 31, 2003
    Messages:
    838
    Likes Received:
    0
    it's when you camera doesn't focus properly. say you focused on a person, and instead of them being in focus, a person in back of them is. hence "back focus"
     
  3. Nickos

    Nickos Active Member

    Joined:
    Aug 26, 2002
    Messages:
    125,132
    Likes Received:
    22
    Location:
    NW MN
    ahhh ok
    so i take it front focus is the opposite
     
  4. Claydus

    Claydus Active Member

    Joined:
    Jul 2, 2001
    Messages:
    8,783
    Likes Received:
    1
    Location:
    Alpharetta, GA
    so what's the deal when i set the AF point to the left part of the meter..... and the point i want to focus on is on the left and i push the shutter button to focus and it focuses to the right meter.... i have to push the shutter button like three more times to focus on the point i want to focus on
     
  5. Jcolman

    Jcolman OT Supporter

    Joined:
    Aug 19, 2002
    Messages:
    43,114
    Likes Received:
    82
    Location:
    east coast
    Actually "back focus" is a term used to adjust a video camera or motion picture cameras zoom lens. If the back focus is out of adjustment the picture won't remain sharp throughout the zoom. Adjusting the back focus is a focusing alignment that must be done whenever you change zoom lenses.
     
  6. Fire Sauce

    Fire Sauce New Member

    Joined:
    Dec 21, 2003
    Messages:
    27,465
    Likes Received:
    0
    Location:
    Hilton Head Island, SC
    This man speaks the truth.

    I work at my high school's RTVF (radio, tv, film) program, and back focus is often the overlooked PITA that can ruin a show.
     

Share This Page