Thread: Need help with 1 shoot - double focus shoot

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  1. #1 Need help with 1 shoot - double focus shoot 
    Senior Member Vigen Vartanov's Avatar
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    Good day . Today Director ask me how to shoot double focus shoot. When front object and background are in Focus.
    Problem is that front object is small , about 10 sm , and must be in full frame , in left corner .
    Problem is that camera is moving , and we can not use over motion
    control system . Sow with http://www.dofmaster.com/ i calculate that
    i can do it , but i need to go up to 16 or 22. Problem is that it is night shoot and i do not want to use so many light.
    Is it some way to do it . May be with Macro Lens ?
    Any ideas or experiences :)
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  2. #2  
    Sounds hard. My first advice would be previs / storyboard.

    Figure out exactly what the problem is, how big objects need to be, cam move, etc. Then test.

    Possible solutions:
    1. light it heavily and shoot at f16 / 22. Do CG matte painting to add night look.
    2. split diopters or tilt shift might work (depends on cam move, exact objects, etc)
    3. build a large-scale model of the close object / forced perspective set (that's what they did in Citizen Kane)
    4. CG 3D model / greenscreen (if small perspective change) of one of the two objects tracked into the scene
    5. choose a shallower DOF camera like Viper / F23. RED is wonderful but can't do everything.
    6. hit director over head and get him to allow you to use motion control or change the shot

    Bruce Allen
    www.boacinema.com
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  3. #3  
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    I agree with Bruce - I like options 1 or 4. (or 6 ;-)

    How about 7. Shoot Day for Night so you can more easily stop down to f16 or 22 with an ND filter?
    Best Regards,
    David C. Didato
    Producer/Director
    magicdogcreative.com: concept write - direct shoot edit sit stay
    @daviddidato
    Epic 237 "Shine"
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  4. #4  
    Senior Member Vigen Vartanov's Avatar
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    6 is best way :) But problem is that location is on 10 floor , :) and we can not move motion control in this location .
    It will be expensive , and this project is low budget project.
    about 7 , yes i will try to do like this .
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  5. #5  
    Senior Member Benni Diez's Avatar
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    Aren't there special lens extensions with 2 different DOFs? They are rotatable I think. Still the problem would be that you have a moving shot, so the two focal areas can't be adjusted independently.

    http://www.techeblog.com/index.php/t...h-in-real-time

    ...or ask Adobe if you can use their prototype of the magic lens. :)
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  6. #6  
    Senior Member Vigen Vartanov's Avatar
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    Adobe :) It is funny . Today i will shoot some footage , and will try to do first tests. Also now we want to do DOF for all shoot :) , sow it will be easy .
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