How to focus in extreme low lighting?

Discussion in 'Beyond the Basics' started by bobaab, Mar 13, 2006.

  1. bobaab

    bobaab TPF Noob!

    Joined:
    Jul 28, 2005
    Messages:
    196
    Likes Received:
    0
    Location:
    Park Ridge, IL/West Lafayette, IN
    For example of a situation: shots during the night away from a city when light pollution isn't putting a spotlight on us.

    It's sometimes very hard to see, and even harder to see through a viewfinder. What are some techniques you guys use to focus in really low lighting when AF isn't exactly working?
     
  2. crawdaddio

    crawdaddio TPF Noob!

    Joined:
    Dec 5, 2005
    Messages:
    1,157
    Likes Received:
    14
    Location:
    Central IL
    It depends on what you are shooting. A flashlight could work on near subjects.
     
  3. BadRotation

    BadRotation TPF Noob!

    Joined:
    Feb 26, 2005
    Messages:
    199
    Likes Received:
    3
    Location:
    Burton, MI
    A simple laser pointer does the job wonderfully.


    Will lock on extremely quick, and even quicker if you have one with a grid pattern.


    Just shine it on what you want to focus on. :thumbup:
     
  4. bobaab

    bobaab TPF Noob!

    Joined:
    Jul 28, 2005
    Messages:
    196
    Likes Received:
    0
    Location:
    Park Ridge, IL/West Lafayette, IN
    that's a great idea! I'm gonna steal that now thanks :)
     
  5. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

    Joined:
    Aug 25, 2003
    Messages:
    7,021
    Likes Received:
    34
    Location:
    Lawrence, KS
    Can others edit my Photos:
    Photos NOT OK to edit
    A lens with a DOF scale is a wonderful thing. It seems to me that with today's computerized cameras they could include a DOF calculator in the software, and show the focus point and DOF in one of the displays.
     
  6. Rob

    Rob TPF Noob!

    Joined:
    Jan 29, 2005
    Messages:
    6,217
    Likes Received:
    134
    Location:
    London
    Set aperture at f11 - f22, turn the focus manually to infinity and nudge it back a bit. Well, that's always worked for me!

    Rob
     
  7. keller

    keller TPF Noob!

    Joined:
    Sep 9, 2005
    Messages:
    105
    Likes Received:
    0
    I dont get the AF thing. Why can't it lock onto certain objects? If it emits an IR beam, doesn't that beam just bounce back from the object it aims at?
     
  8. Torus34

    Torus34 No longer a newbie, moving up!

    Joined:
    Jan 26, 2006
    Messages:
    2,117
    Likes Received:
    37
    Location:
    Tottenville, Staten Island, NYC USA
    Can others edit my Photos:
    Photos OK to edit
    Low light is rangefinder country.
     
  9. clarinetJWD

    clarinetJWD The Naked Spammer Staff Member

    Joined:
    May 11, 2005
    Messages:
    5,787
    Likes Received:
    97
    Location:
    Houston, TX
    :hertz: I've never heard of that...My D70 has a white AF assist bulb. If it could be done with invisiable light, I think it would be, but the Canon cameras especially (like the one in question here) are not very IR sensitive, and I can't see how that would do anything...
     
  10. thebeginning

    thebeginning TPF Noob!

    Joined:
    Jan 10, 2005
    Messages:
    3,795
    Likes Received:
    29
    Location:
    Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    i thought the same thing. i've used that method before, it works well as long as you have enough light to work with and a relatively small aperture.

    a flashlight also does it for me.
     
  11. JonathanM

    JonathanM TPF Noob!

    Joined:
    Jan 8, 2006
    Messages:
    171
    Likes Received:
    1
    Location:
    St helens, England
    Can others edit my Photos:
    Photos OK to edit
    Wide angle lens, small aperture. If its that dark that you can't see through the viewfinder then surely illuminate your centre of focus with a torch beam, and use manula focus if the AF can't hack it?
     

Share This Page