First Principles






So now you have a nice digital SLR camera. It looks great, and you look great holding it. Does that guarantee that you’ll get great images? Unfortunately, no; that little detail is up to us. I’ve given you a few tips in the last section already; here I’ll go over the basics.

Understanding Aperture and Shutter Speed

Larger apertures (the lower numbers like f/1.8, 2.8, and 3.5) decrease the depth of field, making most of the image out of focus, and smaller apertures (the higher, larger numbers like f/11, 16, and 22) increase the depth of field, meaning that more of the image will be in focus. An odd consequence with some lenses is that they also get softer or blurrier overall as you move into smaller apertures, usually ...

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