Response to Beginning student needs help!!!

The other thing to add is that while aperture controls depth of field/focus, shutter speed controls the way motion is rendered on film: faster shutter speeeds, less blurr due to subject motion and camera movement. If you hand-hold your camera, you need to make sure the shutter speed is fast enough you won't wiggle your camera during exposure. A rule of thumb is that the shutter speed for hand-holding should be 1 over the focal length of lens you are using, ie. if you are using a 50mm lens, 1/50th (1/60th is the closest marked speed) would be needed, with a 200mm lens, 1/250th (the closest marked speed) would be needed to keep from blurring the image due to camera movement. Conversely, long shutter speeds allow the motion of the subject to blurr the image, eg. streaking formula 1 cars, taillights on the freeways at night... Hope this helps. ;^D)

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