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Aperture explained using your digital camera 2013

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Aperture explained using your digital camera 2013

1. 1. WHAT IS APERTURE? Aperture is the size of the opening in the lens when you take a picture The larger the hole, the more light gets in Aperture is measured in f-stops When you move from one f-stop to the next, you are either doubling or halving the amount of light that is being let in to the lens “Keep in mind that a change in shutter speed from one stop to the next doubles or halves the amount of light that gets in also – this means if you increase one and decrease the other (aperture/shutter speed) you let the same amount of light in – very handy to keep in mind” (from http://digital- photography-school.com/aperture#ixzz2JYsvytuX) The LARGER an f-stop number the LESS light is getting in The SMALLER an f-stop number the MORE light is getting in An f-stop of 22 lets in LESS light than an f-stop of 4
2. 2. DEPTH OF FIELD AND APERTURE Depth of field (DOF) is the amount of your shot that will be “in focus” Large DOF means that most of the image will be in focus whether its close to you or farther away http://www.flickr.com/photos/adamclutterbuck/131884319/ (this picture was taken with an f-22 f-stop which means it is letting LESS LIGHT in to your lens) Small DOF means that part of the image will be in focus but the rest will be “fuzzy” http://www.problogger.net/wp-content/uploads/old/aperture.jpg (this picture was taken with an f-4.5 f-stop which means it is letting MORE LIGHT in to your lens) Small f-stops mean small DOF and large f-stops mean large DOF
3. 3. PRACTICE . . . The best way to learn to set apertures for various shots is to practice. You can go outside (or stay inside if it is winter time in Ohio  ) and just try some different shots with small f-stops and large f-stops and simply compare your shots http://www.problogger.net/wp-content/uploads/old/f-22.jpg picture taken by Darren Rowse with an f-stop of f-22 http://www.problogger.net/wp-content/uploads/old/f-2.8.jpg picture taken by Darren Rowse with an f-stop of f-2.8
4. 4. DIFFERENT STYLES USE DIFFERENTAPERTURES Landscape photographers probably want most of their shots “in focus” so they use small aperture settings (LARGE f-stop numbers) Portrait photographers may want their main subject(s) to be “in focus” but their backgrounds less “in focus” to draw more attention to their subject(s) so they use large aperture settings (SMALL f-stop numbers)
5. 5. REFERENCEMost of the information for this PowerPoint was taken from:Rowse, Darren. "Introduction to Aperture in Digital Photography." Digital Photography School. Digital Photograph School, n.d. Web. 31 Jan. 2013. <http://digital-photography-school.com/ aperture#author>