how does it work f/ss

[mysteryscribe]

This is the easiest and the hardest concept to grasp. It is also the most important.

We have all filled a container from the sink. If we turn the faucet volume(aperture) on full it takes a certain amount of time (shutter speed) to get the desired amount of water in the container (exposure).

so in photography it is the same aperture x shutter speed = exposure Remember the contain from our ealier tips being the same as correct exposure.

axs=e

Or we can go with less volume for a longer time

1/2a x2s=e

If we cut the volume in half we have to double the shutter speed. To make it easy each fstop you cut the light volume you can double the the sutter speed. I told you it was confusing.

f22@1/100 is the same as f16@1/200 is the same as f11@1/400 same as f8@1/800 same as f4@1/1600

so if they are all the same what difference does it make. Well each combination has a different effect on the image.... Next what are the effects....

Jump in guys and feel free to improve or correct

 

[Torus34]

http://www.thephotoforum.com/node/36