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Thread: How to take fireworks?

  1. #41

    Default Re: How to take fireworks?

    Quote Originally Posted by tltan
    For focusing, usually done is manual focusing, otherwise auto search like siaoz. focus to infinity as mentioned as fireworks are so high in the sky. At most focus to infinity and turn back slightly
    how to focus to infinity?

  2. #42
    Senior Member +evenstar's Avatar
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    Default Re: How to take fireworks?

    Quote Originally Posted by bent
    how to focus to infinity?
    turn ur focus ring?
    eat. drink. shoot

  3. #43

    Default Re: How to take fireworks?

    Quote Originally Posted by bent
    how to focus to infinity?
    dont use auto focus. Use manual focus. Then turn the ring until the top there is a line that matches to the infinity mark. A figure 8 (turned 90 degrees clockwise or anticlockwise)

  4. #44

    Default Re: How to take fireworks?

    Quote Originally Posted by Artosoft
    Read my post #18.

    Also, you might want to read this:
    http://en.wikipedia.org/wiki/Hyperfocal_distance

    If you use Wide Angle lens, when you use f/8 or f/11, the DoF (Depth of Field) is quite big. So, if you focus on the building (better if you can focus on hyperfocal distance), it will still cover the fireworks distance, thus give you sharp fireworks.

    Slow shutter doesn't contribute anything to DoF!

    Regards,
    Arto.
    hmm ic ic, okay, thanks! i would try using F11 and focus on the furthest building. its a bit hard for me to focus on hyperfocal distance cos im not using a DSLR. my camera do have a focus ring but it doesn't actually says the focus distance.
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  5. #45
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    Default Re: How to take fireworks?

    Why not? I have seen this flash so many times in my life.....the lightning loh

    Quote Originally Posted by sehsuan
    Definitely, no flash. Why?

    Have you seen a super powerful flash that was so bright, that it lit up the whole night sky?

    That thought alone, brings a chuckle each time it comes across my mind...

  6. #46
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    Default Re: How to take fireworks?

    Quote Originally Posted by +evenstar
    maybe for this particular scenario, shutter speed and DOF have little relation since it's dark? for daytime, shutter speed and DOF are definitely related?
    I think shutter speed got onthing to do with DOF. If you need, the optical studies for DOF has this set of formulae:

    Hyperfocal Distance
    Setting focus at the Hyperfocal Distance gives maximum depth of field from H/2 to infinity.


    H = (L x L) / (f x d)
    Where:
    H = Hyperfocal Distance (in millimeters)
    L = lens focal length (ie, 35mm, 105mm)
    f = lens aperture f-stop
    d = diameter of circle of least confusion (in millimeters)
    for 35mm format d = 0.03
    for 6x6cm format d = 0.06
    for 4x5in format d = 0.15
    Near Focus Limit


    NF = (H x D) / (H + (D - L))
    Where:
    NF = Near Focus Limit (millimeters)
    H = Hyperfocal Distance (in millimeters, from above equation.)
    D = lens focus distance (in millimeters)
    L = lens focal length (ie, 35mm, 105mm)

    Far Focus Limit


    FF = (H x D) / (H - (D - L))
    Where:
    FF = Far Focus Limit (millimeters)
    H = Hyperfocal Distance (in millimeters, from above equation)
    D = lens focus distance (in millimeters)
    L = lens focal length (ie, 35mm, 105mm)

    Nothing on Shutter speed.

    Shutter speed will only make your pic over/under exposed may be, but won't make your focused object out of focus....or blur your object due to movement, not due to OOF...

    Hope this helps...but I am new to this too, just sharing my research on the topic.

  7. #47

    Default Re: How to take fireworks?

    all these equations kills me lol
    i would just let the hyperfocal calculator do the job for me hahaha :P
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  8. #48
    Member/Tangshooter zaxh81's Avatar
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    Default Re: How to take fireworks?

    Quote Originally Posted by Zaknafein
    all these equations kills me lol
    i would just let the hyperfocal calculator do the job for me hahaha :P
    yup,equations also kills me.
    Understanding your camera settings and more practisings more better.

  9. #49

    Default Re: How to take fireworks?

    Here's an easy-to-understand article on fireworks photography. IMO, there's still no better way to learn than just going out there and doing it.

    http://digital-photography-school.co...aph-fireworks/

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