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Thread: How to focus on fast incoming subject?

  1. #1

    Default How to focus on fast incoming subject?

    Imagine a cyclist from far riding a bicycle towards you face front.

    In 20 secs, how do you get a sharp image on him while there is considerably shallow depth of view for the background?

    Quickly switch to manual, C-AF, AF tracking, multi-focus points, face-detection or still on Single AF (but with multiple half-press)?

    Sorry, there's no 3D focusing on my G3.
    Last edited by sin77; 11th March 2012 at 03:28 PM.
    D7100,SB910,17-50/2.8OS,105/2.8VR,85/1.8D,2xE-M1,O60/2.8,12-40/2.8,35-100/2.8,14-42,LX100

  2. #2

    Default Re: How to focus on fast incoming subject?

    i think i will just pre-focus on a point in front of the cyclist, switch to manual focus, wait for the cyclist to go near the pre-focused area, burst shutter all the way until you are sure that he/she is out of the focus area, then pray hard that you have at least one photo with perfect/decent focus, dunno if this can work, just an idea.

  3. #3

    Default Re: How to focus on fast incoming subject?

    Quote Originally Posted by miaoteh View Post
    i think i will just pre-focus on a point in front of the cyclist, switch to manual focus, wait for the cyclist to go near the pre-focused area, burst shutter all the way until you are sure that he/she is out of the focus area, then pray hard that you have at least one photo with perfect/decent focus, dunno if this can work, just an idea.
    Thanks! Thats a very good idea.
    D7100,SB910,17-50/2.8OS,105/2.8VR,85/1.8D,2xE-M1,O60/2.8,12-40/2.8,35-100/2.8,14-42,LX100

  4. #4
    Member SyncGuy's Avatar
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    Default

    Err... If you know how it works, I actually shoot both eyes open for these kind of things.. Dunno how to explain here.. But shooting both eyes open allow me to see like my normal view, only that there is a "frame" within it...

    You should try...
    Pentax Kr, Pentax Super A
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  5. #5
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    Quote Originally Posted by miaoteh
    i think i will just pre-focus on a point in front of the cyclist, switch to manual focus, wait for the cyclist to go near the pre-focused area, burst shutter all the way until you are sure that he/she is out of the focus area, then pray hard that you have at least one photo with perfect/decent focus, dunno if this can work, just an idea.
    To add on, if you have a fast FPS camera AND under good light, u can do the above. If otherwise, it's better to snipe than to rapid fire.
    Equipment: D800|D700|11-16|28-75|105 Micro VR|50 F1.4G|85 F1.8G
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  6. #6

    Default Re: How to focus on fast incoming subject?

    pre-focus at the spot where he will pass and you want to shoot or set AF to continuous focus
    Coolthought - 冷静思考 - クールだ http://xaa.xanga.com/0aba0666d143253.../t35917343.gif

  7. #7

    Default Re: How to focus on fast incoming subject?

    Can try trap focus if your camera's firmware supports it

  8. #8
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    Default Re: How to focus on fast incoming subject?

    C-AF, and focus point on the point tat u wan the cyclist to be in the frame
    pan and burst shoot
    Stirring up emotions with pics - cyliew

  9. #9
    Senior Member UncleFai's Avatar
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    Default Re: How to focus on fast incoming subject?


  10. #10
    Senior Member sinned79's Avatar
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    Default Re: How to focus on fast incoming subject?

    go infront of the cyclist and block his path and u will get to shoot his shocked face :x

  11. #11
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    Default Re: How to focus on fast incoming subject?

    Quote Originally Posted by sinned79 View Post
    go infront of the cyclist and block his path and u will get to shoot his shocked face :x
    And bicycle wheel thread over your face....
    Equipment: D800|D700|11-16|28-75|105 Micro VR|50 F1.4G|85 F1.8G
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  12. #12
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    Default Re: How to focus on fast incoming subject?

    Quote Originally Posted by sinned79 View Post
    go infront of the cyclist and block his path and u will get to shoot his shocked face :x
    epic...remember to burst shoot...lol
    Stirring up emotions with pics - cyliew

  13. #13

    Default Re: How to focus on fast incoming subject?

    a little read for trap focus but may be more applicable to macro instead.

    EOS Documentation Project - Almost Trap Focus

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