Sunday, August 7, 2011

Last Sundays Portraits...

As promised I am posting up a few pictures from last weeks mini sessions. I have also been asked to start giving out a photography tip every so often and I am going to start doing that today with this post. But first here are a few images from the mini session.....

Photography tip after the break...

Probably the most important thing to learn is the exposure triangle...Aperture, ISO and Shutter Speed. They all three work together to make your exposure. Today we will start with Aperture.
Aperture is the opening that allows light into your lens. The smaller the number, the larger the opening, the more light that will enter the lens. The larger the number, the smaller the opening, the less light that will enter the lens.
In my opinion it is important to know at least the full stops by heart. 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32.  These are the most common f stops ( Apertures) we will deal with. Each number represents a stop of light...1-1.4 is one stop....5.6-16 would be 3 stops of light.
As with all things in photography, there are trade offs you must make when choosing the aperture you wish to use. The most important is depth of field. the larger the aperture (smaller the number) the shallower the depth of field will be. This will effect your focusing since the depth of field will be so narrow it will be easy to miss focus because you or your subject moved a fraction of an inch.
The smaller the aperture (larger the number) the more of your scene will be in focus, but it may cost you in shutter speed since you are letting in less light than you would with a larger aperture. You may have to use a tripod if your shutter speed becomes to slow or you may have to increase your ISO to compensate.
If you are using off camera flash, another thing to consider is that aperture will determine your flash exposure. This is where it can become complicated so we will wait until we have finished up with the exposure triangle.
If anyone has a question feel free to comment below or to send me an e-mail.

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