Traditional Culture Encyclopedia - Photography and portraiture - How to set the power of the photographic lamp when shooting with a single lamp in the studio?
How to set the power of the photographic lamp when shooting with a single lamp in the studio?
After setting the ISO number, GN=F×L(GN= Flash Index, F= Aperture, L= Distance) adjusts any parameter, other parameters change accordingly, and the angle of the flash and accessories will affect the reduction of the flash index. In the absence of an exposure meter, look directly at the block diagram according to the formula or Shoot's gray card. As long as the shutter is within a valid shutter.
I don't know the manufacturer of your lamp. Generally, the total light output of 400w studio lamps is 60NG(ISO 100), and 8×2 is a new index of 16. The refractive index excluding all light 60 is about 1/4. Press 1/4 directly to see the block diagram of the bar.
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