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Close-up of cupcakes with selective focus on computer sleeve
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Close-up of cupcakes with selective focus on computer sleeve
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About this product
Style: Neoprene Laptop Sleeve 10 inch
<p>Protect your laptop with a custom laptop sleeve. Made with 100% neoprene, these lightweight and water resistant sleeves look great with your photos, text, or designs. Great for travel or just day-to-day use, custom laptop sleeves come in three sizes to fit your device and your style.</p>
  • Sizes for 10 inch, 13-14 inch, and 15 inch laptops
  • Form fitting case; fits most slim laptops
  • Lightweight and water resistant neoprene
  • Top loading zippered enclosure
  • Laptop not included
  • Designer Tip: To ensure the highest quality print, please note this product’s customizable design area measures 10.75" x 8". For best results please add 7/8" bleed.
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About this design
Close-up of cupcakes with selective focus on
Asset ID: 98107858 / Lilli Day / Close-up of cupcakes with selective focus on front cupcake

In optics , particularly as it relates to film and photography , depth of field (DOF) is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image. Although a lens can precisely focus at only one distance at a time, the decrease in sharpness is gradual on each side of the focused distance, so that within the DOF, the unsharpness is imperceptible under normal viewing conditions.
In some cases, it may be desirable to have the entire image sharp, and a large DOF is appropriate. In other cases, a small DOF may be more effective, emphasizing the subject while de-emphasizing the foreground and background. In cinematography , a large DOF is often called deep focus , and a small DOF is often called shallow focus .
Affecting DOF are camera-to-subject distance, lens focal length , selected lens f -number , format size , and circle of confusion criterion. The combination of focal length, subject distance, and format size defines magnification at the film / sensor plane.
DOF is determined by subject magnification at the film / sensor plane and the selected lens aperture or f -number. For a given f -number, increasing the magnification, either by moving closer to the subject or using a lens of greater focal length, decreases the DOF; decreasing magnification increases DOF. For a given subject magnification, increasing the f -number (decreasing the aperture diameter) increases the DOF; decreasing f -number decreases DOF.
When the “same picture” is taken in two different format sizes from the same distance at the same f -number with lenses that give the same angle of view, and the final images (e.g., in prints, or on a projection screen or electronic display) are the same size, the smaller format has greater DOF.
Many small-format digital SLR camera systems allow using many of the same lenses on both full-frame and “cropped format” cameras. If, for the same focal length setting, the subject distance is adjusted to provide the same field of view at the subject, at the same f -number and final-image size, the smaller format has greater DOF, as with the “same picture” comparison above. If pictures are taken from the same distance using the same f -number, same focal length, and the final images are the same size, the smaller format has less DOF. If pictures taken from the same subject distance using the same focal length, are given the same enlargement , both final images will have the same DOF. The final images will, of course, have different sizes.
Cropping an image and enlarging to the same size final image as an uncropped image taken under the same conditions is equivalent to using a smaller format under the same conditions, so the cropped image has less DOF.
When focus is set to the hyperfocal distance , the DOF extends from half the hyperfocal distance to infinity, and the DOF is the largest possible for a given f -number.
The advent of digital technology in photography has provided additional means of controlling the extent of image sharpness; some methods allow extended DOF that would be impossible with traditional techniques, and some allow the DOF to be determined after the image is made.

Description above from the Wikipedia article Depth of field, licensed under CC-BY-SA full list of contributors here. This page is not affiliated with, or endorsed by, anyone associated with the topic.
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prophoto

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Close-up of cupcakes with selective focus on computer sleeve

$27.95 per sleeve
Artwork designed by prophoto. Made by FUJIFILM in Valhalla,, NY. Sold by Zazzle.
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Product ID: 124518815693124407
Made on: 2/6/2012 5:52 PM
Reference: Guide Files