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Flash help

  • 25-10-2006 5:43pm
    #1
    paudie
    Registered Users, Registered Users 2 Posts: 494 ✭✭


    Upon looking into the world of Flash, i realise I know nothing.
    Guide number? Is that just how far the flash can go?

    Do I really need a 580 if I'm going to be shooting in small cramped venues?
    But I suppose I will use it for other stuff eventually.

    Any help/ideas would be appreciated.



    Jaysus, I'm always looking for help on this board :P


Comments

  • #2
    Roen
    Closed Accounts Posts: 4,620 ✭✭✭Roen


    I just got a 580ex last week along with a Gary Fong Lightsphere II. I haven't had a chance to use it yet. I think I'll die of embarrassment with that contraption on my flash if I ever have to use it :o
    Maybe a 430ex if you don't need oodles of power.

    I'm not sure what flash you need but if you're in small cramped spaces then some sort of diffusion is a must. Check this rather camp individual for a class and vv cheap solution to diffusing light.

    **edit** Bah I typed a huge reply to your guide number thing, but...well lets just say something happened. Yes Guide Number (GN) is a measure of flash power, the higher it is the more powerful the flash.
    Handy way to calc aperture is GN/dist in metres....so for a person 5 metres away 58/5=11, so you use ƒ11. Of course you can do all sorts of mental power setting jiggery with the 580, it's like a mini computer it's got so many buttons, so of course you can drop the power and use ƒ2.8 or ƒ4 or whatever you want.


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