RE: READ THIS ONE- Studio Photography

|-----Original Message-----
|
|> Ideally if you can get your meter to read F-45 you are doing good. This
|> whole bit about doubling your number of flashes to add an extra stop is
|> nonsense. Everytime that you flash the strobes you add an extra stop of
|> light. Lets say that I set up my lights and get a meter reading of F-45.
|> Lets count: F-45, F-60, F-90, F-128 That equals 4.

You have to be kidding, right? In regular shutter speeds, let's see, 1/30 is
twice the exposure of 1/60. 1/15 is twice the exposure of 1/30, or FOUR
times the exposure of 1/60. 1/8 is twice 1/15, or FOUR times 1/30, or EIGHT
times 1/60.

Now you pop your flash once. That's 1/60. You pop it twice, that's 1/30. If
you pop it three times, that's NOT 1/15. You need FOUR pops to make 1/15,
and EIGHT pops to make 1/8.

Every change in stop is 1/2 or twice the exposure of the previous stop.

When kids ask me what they need to know to be a good photographer, I tell
them "Math!"
Received on Mon Nov 20 20:43:50 2000