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Thread: Which ND for these conditions..

  1. #1

    Default Which ND for these conditions..

    Hi, may I ask which ND do I need?Thks

    Bright sunny noon
    Shutter 1/40
    Aperture f1.4
    Iso 200

  2. #2
    Moderator Octarine's Avatar
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    Default Re: Which ND for these conditions..

    You could read about 'Sunny 16' rule and do some maths.
    EOS

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    Default Re: Which ND for these conditions..

    Quote Originally Posted by redmonsoon View Post
    Hi, may I ask which ND do I need?Thks

    Bright sunny noon
    Shutter 1/40
    Aperture f1.4
    Iso 200
    Bright sunny noon with F/1.4 @ speed 1/40? I'm feeling weird with this figure...

  4. #4

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    Quote Originally Posted by Cowseye

    Bright sunny noon with F/1.4 @ speed 1/40? I'm feeling weird with this figure...
    Its to get motion blur w shallow DOF during that lighting condition.
    Have to use ND filters to block out light so that the camera does not overexpose.

    Thks Octarine, I'll c if sunny 16 helps..

    Anyone has experience shot that b4?

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    Default Re: Which ND for these conditions..

    oic. I thought you metered with that figure before you apply ND filter.

    assuming you are able to get a correct exposure @ 1/4000 with an aperture of your choice (F/1.4 I suppose).
    You can apply ND128 or ND256 to reach 1/40 or 1/20. These are 7 & 8 stops filter respectively. Maybe ND fader can help you but I doubt because these are the higher extreme ends of the lower stops Fader, which you will face the cross mark issue...

  6. #6
    Moderator catchlights's Avatar
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    Default Re: Which ND for these conditions..

    Quote Originally Posted by redmonsoon View Post
    Its to get motion blur w shallow DOF during that lighting condition.
    Have to use ND filters to block out light so that the camera does not overexpose.

    Thks Octarine, I'll c if sunny 16 helps..

    Anyone has experience shot that b4?
    Sunny f16 rule,
    subject under direct sunlight with distinct shadows, exposure will be at f16, speed is same as what ISO you use, eg, speed=1/200, ISO=200 also.

    f16, 1/200s, ISO200
    f11, 1/200s, ISO200
    f8, 1/200s, ISO200
    f5.6, 1/200s, ISO200
    f4, 1/200s, ISO200
    f2.8, 1/200s, ISO200
    f1.4, 1/200s, ISO200
    f1.4, 1/100s, ISO200
    f1.4, 1/50s, ISO200

    you can use the Hoya ND400, which cut down 9stops of light.

    hope this help.
    Last edited by catchlights; 6th May 2011 at 08:09 AM.
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  7. #7

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    Ah thks so much, tht really helps, not heard of sunny16 b4..

    I would not have thot I'm even looking at cutting so many stops

    Fader ND Ultra looks interesting, it supposedly cuts 9-12stops..bt hmm pricey
    Last edited by redmonsoon; 6th May 2011 at 08:42 AM.

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    Moderator daredevil123's Avatar
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    Default Re: Which ND for these conditions..

    Quote Originally Posted by redmonsoon View Post
    Ah thks so much, tht really helps, not heard of sunny16 b4..

    I would not have thot I'm even looking at cutting so many stops

    Fader ND Ultra looks interesting, it supposedly cuts 9-12stops..bt hmm pricey
    I would avoid any of the variable NDs for 9 stops.

    Just go with Hoya ND400. Whatever the shutter speed metered without filter, just multiply by 400 and you will get the shutter speed with filter on.

  9. #9
    Senior Member bonrya's Avatar
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    Nd110.
    My Flickr
    ~Neko baka

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    Moderator daredevil123's Avatar
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    Quote Originally Posted by bonrya
    Nd110.
    That one must multiply by 1000. How's your nd110? Putting to good use?

  11. #11
    Senior Member bonrya's Avatar
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    Quote Originally Posted by daredevil123

    That one must multiply by 1000. How's your nd110? Putting to good use?
    No time to shoot so far.. Big bro bring us go shooting can?
    My Flickr
    ~Neko baka

  12. #12
    Moderator daredevil123's Avatar
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    Default Re: Which ND for these conditions..

    Quote Originally Posted by bonrya View Post
    No time to shoot so far.. Big bro bring us go shooting can?
    Sure thing. will send you an invite in FB when it happens. Will try to org it b4 the HZ trip.
    Last edited by daredevil123; 11th May 2011 at 02:20 AM.

  13. #13
    Senior Member bonrya's Avatar
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    Quote Originally Posted by daredevil123

    Sure thing. will send you an invite in FB when it happens. Will try to org it b4 the HZ trip.
    Thank you! Kranji you coming right?
    My Flickr
    ~Neko baka

  14. #14
    Moderator daredevil123's Avatar
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    Quote Originally Posted by bonrya

    Thank you! Kranji you coming right?
    Yes. Should be.

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