Exposure: ISO, Aperture and Shutter Speed

I got into photography as an archival pursuit, basically a way to record things, summer holidays, horse trekking and scuba diving or my first car.

Initially I used my camera/s on automatically, pointing and shooting and hoping the camera got what I expected.

As with most photographers, the first thing I worked on was composition, thinking about how a photo was framed.

Eventually I started digging into the rest of the camera settings and admit to finding the whole relationship between “film speed’, aperture, and shutter speed, essentially confusing.

Once you do get your head around it however you will have your own ways of describing this relationship.

Recently however I came across Understanding Exposure – ISO, Aperture and Shutter Speed Explained.

Tthis is a great article, written in plain english, and with a simple yet specific set of images explaining each of the parameters.

If you are having trouble getting your head around this combination, have a read, and if you want an aide-mémoire, print out the circle image and stick it in your camera bag.

(originally posted on Mixed media reporting tumblr)






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