Macro + random Qs

Discussion in 'Photography Beginners' Forum' started by Innocence, Mar 29, 2007.

  1. Innocence

    Innocence TPF Noob!

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    Hello,

    I've started playing with a macro lens, and I'm wondering

    1/ What the effective fstop means? Why is it there?
    2/ How to calculate EV number? Say ISO 100 and f/2.8 1sec = EV # ?
    3/ Is there something a ring flash can do that a normal sit on top of my camera (or even on board) flash can't?
    4/ Can I use a non ring flash for macro photography?

    Cheers! =)
     
  2. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    A ring flash sits on the end of the lens so that it can evenly illuminate a small subject. If you tried to light up a small subject that is only a few inches in front of the lens...the lens might be in the way, the flash won't point in that direction and it would be very directional light, rather than even light.

    You can try...it would be best if you could move the flash off of the camera.
     
  3. el_shorty

    el_shorty TPF Noob!

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    a quick goggle search gave this.
    Yes you can, and I do it a lot, but like what Big Mike said, you get better results with having your flash off camera, here you can see photos of frogs i took a few months ago, I used flash on all of them.
     

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