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ND filter advice?

  • 22-02-2009 5:58pm
    #1
    TheNorthBank
    Closed Accounts Posts: 279 ✭✭


    As I understand it, and if I understand correctly that is, if I want to shoot slow shutter speeds during the day (waterfalls, fountains etc..) then a ND filter is required?
    If this is the case then how do I know what ND# to choose? I know they relate to exposure (F stops), but is there one that is pretty versitile or do I have to go out and buy a ND2, 4, 8 etc... I want to buy one next weekend, but I only want to buy 1 if I can get away with it.

    Any advice would be greatly appreciated, thanks.


Comments

  • #2
    ThOnda
    Registered Users, Registered Users 2 Posts: 4,699 ✭✭✭ThOnda


    The number tells you how many exposure steps (EV) you would have to increase the shutter time. ND4 gets you from 1/125 to (1/60, 1/30, 1/15 - just counting) 1/8 of the second. The choice depends on you and the requred effect, aperture of the lens and the lowest ISO setting of your camera.


  • #3
    Duchovny
    Closed Accounts Posts: 214 ✭✭Duchovny


    I would say a ND4 or 8 is enough for you is you just want to slow waterfalls and so on, i would go for the ND8 and you can always play more with the F's anyway.


  • #4
    SemperFidelis
    Registered Users, Registered Users 2 Posts: 266 ✭✭SemperFidelis


    An ND8 will only get you a 3-stop reduction in shutter speed (or increase in aperature). While ND4 is 2-stops and ND2 is 1-stop.

    An Nd8 will let in 1/8 of the light, ND4 1/4 and ND2 1/2.


  • #5
    ThOnda
    Registered Users, Registered Users 2 Posts: 4,699 ✭✭✭ThOnda


    Doh! I did it again. Sorry for that (and read my signature) :(

    By the way, any recommended suppliers of ND filters? I am seriously thinking about ND8 for few ideas.


  • #6
    bocha
    Closed Accounts Posts: 41 ✭bocha


    i was looking for one of these too, i hoped to blur the people in a busy street - nd8 was my conclusion


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  • #7
    Duchovny
    Closed Accounts Posts: 214 ✭✭Duchovny


    I use Hoya, but i got my 1st B+W filter and looks way better... But it wasn't a ND8 it was a ND 110 ;)


  • #8
    CabanSail
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators Posts: 9,047 CMod ✭✭✭✭CabanSail


    7dayshop & MyMemory both sell them in a variety of sizes.


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