Controlling the ambient light -Part I

Controlling your ambient light in your studio shots will let you much more control over the total image output.In the previous discussion about the ambient light we got to the point that the amount of the ambient light in your pictures is determined mainly by the shutter speed (in opposite to the flash light in the picture that is controlled by the aperture value).

In this first part of the discussion about the ambient light in a flash controlled environment we will   give an example on how to take out the ambient light from your pictures.It could be used when you shoot a model on a white background as a white wall or some paper.When you control the amount of ambient light in the picture you can actually can give the white background any gray color shade you want,for white to totally black.

In the example below,the flash power is fixed (Canon 580EX  1/32 max power) the camera aperture is fixed on f/5.6 and the ISO level is also fixed to 100ASA.The only parameter we change in the picture will be the shutter speed.It actually very surprising to find out how the from models exposure isn’t changed as we change the shutter speed.This will be the best example to the fact that

SHUTTER SPEED CONTROLS THE AMBIENT LIGHT IN A FLASH CONTROLLED ENVIRONMENT!!!

We change the the shutter speed by 1 stop jumps –

1/8

1/15

1/30

1/60

1/125

1/250

Take a look for the changes in the ambient light in the picture.If you have any ideas or pictures that shows us the ambient light,let as know!

1-8sec

1-15sec

1-30sec

1-60sec

1-125sec

1-250sec

setup

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