Fstops the smaller the fnumber the more shallow the

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F/Stops: The smaller the f/number the more shallow the depth of field. The more blurry the background because the aperture is wider and lets in more light rays causing point of confusion. (To help you remember this, think about how hard it is to see in low light situations in which your own pupil is open all the way). Shutter Speeds: choose based on motion blur. Slower than 1/60, you need a tripod to keep the still parts of your image sharp. Anything moving will still streak. The higher the denominator, the shorter the exposure time and the more you will freeze action. Sweet 16 Rule Or Sunny 16 Rule: In direct sunlight, the exposure will be f/16 at 1/ISO (choose the shutter speed that is closest to the ISO. If for negative film, open up a bit. For example, if you are shooting 400 speed film, shoot f/16 at 1/250 of a second instead of 1/500 of a second. For positive images, like digital, close down a bit). Pre-visualization: Ansel Adams coined this phrase to mean the act of imaging your scene in black and white, paying specific attention to getting the exposure & film development time correct to give you full detail in the highlight and shadows .
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