I have a confusing question (at lest to me) about using flash with Long exposure
Sep 12, 2018 20:16:34 #
Magaliaman
Loc: Magalia, CA
I'm having troubles grasping a concept that maybe someone here can shed some light on (pun intended)
Lets say I'm taking a 30 sec timed exposure of the night stars. And I Flash my Studio Strobe at 1/2 power to illuminate some subject in the foreground. We'll call the foreground trees and shrubs. I know how this will turn out, and it would usually be the effect I want. But here's the grey part to me...…. What if I flash my strobe 4 times during that 30 sec timed exposure, are the flashes cumulative in effect, or would I basically have the same exposure as flashing it only once.
Lets say I'm taking a 30 sec timed exposure of the night stars. And I Flash my Studio Strobe at 1/2 power to illuminate some subject in the foreground. We'll call the foreground trees and shrubs. I know how this will turn out, and it would usually be the effect I want. But here's the grey part to me...…. What if I flash my strobe 4 times during that 30 sec timed exposure, are the flashes cumulative in effect, or would I basically have the same exposure as flashing it only once.
Sep 12, 2018 21:40:19 #
It will be cumulative, the more photons you put on any subject during the exposure the brighter it will be.
Sep 12, 2018 22:03:25 #
Magaliaman
Loc: Magalia, CA
BassmanBruce wrote:
It will be cumulative, the more photons you put on any subject during the exposure the brighter it will be.
Wow, that wasnt what I expected. I dont doubt you, I just wasnt aware of that. I Suppose that it would also translate to having 3 or 4 strobes at the same power would ALSO have a cumulative effect over just one strobe.
Thanks for the response.
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