A&P D80 Heads: Focusing

Discussion in 'Lifestyle' started by 1200mk, May 21, 2007.

  1. 1200mk

    1200mk Still same OG

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    Lets say I am taking a big group picture how would I make sure that it is focused on everyone?
     
  2. ok_computer

    ok_computer OT Supporter

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    high f/stop
     
  3. 1200mk

    1200mk Still same OG

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    where would I put my AF point on?

    and how high of a F stop?
     
  4. Neuro

    Neuro OT Supporter

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    focus on people on front row

    depend on how big group, distance, what you want in focus..etc :dunno:
     
  5. 1200mk

    1200mk Still same OG

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    o rly?

    so for people that are further away are you supposed to increase the f/stop number?
     
  6. Neuro

    Neuro OT Supporter

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  7. hash browns

    hash browns lolcathlon champion OT Supporter

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    :rofl:

    chances are if all the people in the group are standing side, by side, and the photographer is facing them, they are all generally in the same plane of focus.

    you don't need an extremely small f/stop to get them all in focus.
     
  8. 1200mk

    1200mk Still same OG

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    they are side by side for the most part. Maybe 3 feet apart tops.

    I shot it in f/3.5 and it's usable for if I wanted to blow it up, the image wouldn't be so sharp.
     
  9. 1200mk

    1200mk Still same OG

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    o and I ran into the front of the group before the timer went off. I am thinking that may have fucked up the focus.
     
  10. hash browns

    hash browns lolcathlon champion OT Supporter

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    :hsugh:

    pre-focus onto the person in the middle. set camera on manual focus mode. set timer to 10-15sec. shoot at f/5.6-f/8 and you will probably be safe
     
  11. joy division

    joy division New Member

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    What about the d80 pack to go with the heads?
     
  12. isaac86hatch

    isaac86hatch This thread sucks

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  13. jared_IRL

    jared_IRL OT Supporter

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    f3.5?? For portraits?


    You should be shooting that somewhere between 7.1 and 11, depending on where whatever lens you're using is sharpest.

    The image will be sharper, and the depth of field will be deeper.
     
  14. hash browns

    hash browns lolcathlon champion OT Supporter

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    almost every lens is sharp by f/8 :eek4:
     
  15. 1200mk

    1200mk Still same OG

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    so I should raise the ISO to take a picture at f/8 for the highest pq?
     
  16. xpinchx

    xpinchx hes got a nice cock, on the thin side but its stil

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    Nobody said anything about ISO. If it's an outdoor portrait I would use somewhere around 200 ISO, indoor maybe a bit higher. Put your camera on aperature priority and set it anywhere from 8-11. :dunno:

    When you have your aperature set at like 3.5 your depth of field (area in focus) will be too short to have 2-3 rows of people completely in focus. Set it higher and your problem will be fixed.
     
  17. 1200mk

    1200mk Still same OG

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    does the 8-11 rule apply for all lenses?

    even primes and constant 2.8 lenses?
     
  18. jared_IRL

    jared_IRL OT Supporter

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    The general rule is that a lens is sharpest 2-3 stops up from it's max aperture.

    A good part of the reason people use 1.4 and 2.8 lenses for portrait work is because you are able to work around 4-5.6 and get the subject perfectly focused, good enough depth of field to blur the background, and great sharpness.

    But if your min. aperture is 3.5, then you're gonna be getting sharp around 5.6-8. and if you need more DOF to get everyone in focus, 8 would be the smart choice...
     
  19. xpinchx

    xpinchx hes got a nice cock, on the thin side but its stil

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    Like jared just said, it depends on the lens. If you have a prime lens that is constant 1.8 you can get a sharper picture at a lower aperature than say a constant 5.6 lens or something similar. It takes a little experimentation, but generally if you want a deeper depth of field set your aperature a few stops higher than you would for that exposure, and if you're in aperature priority your camera will compensate by taking a longer exposure.
     
  20. 1200mk

    1200mk Still same OG

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    sweet, thanks.

    And is matrix metering recommended for a group shot?
     
  21. s40Strib

    s40Strib New Member

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    most of my shit is sharp by 2.8 :noes:

    On a side note: jared gives good advice.
     

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