Posts Tagged ‘health’
Wave Zone
Friday, September 23rd, 2011
Zone Plate Photography
Zone Plate is a way of doing lens less photography, sort of like pinhole, but a different effect and process. A zone plate is strip of film with symmetric rings which alternate between opaque and transparent areas, and when light passes through the rings light will diffract around the opaque area and the effects are a desired focus. The end result is a dream like image that creates a soft-focused image.
zone plates, are also known as a Fresnel zone plate after French physicist Augustin Fresnel who wrote about wave theory and diffraction during the early 19th century, He used a set of alternating opaque and transparent symmetric rings which diffract the light passing through them. This occurs when light passes the edges of the opaque rings.
The process for creating a zone plate is the size and number of rings they are formulated by a specific focal length which is determined from a mathematical formula. With a standard camera you would measure from the film plane to the edge of the body of camera this would be your focal length, same applies to DSLR cameras.
zone plates and pinhole photography work on diffraction to focus light but the pinhole will produce a much sharper image than the zone plate which has more of a soft-focus to the image.
zone plates do come at a price. The more zones you have, the smaller your f-stop becomes. The smaller the f-stop, the less depth of focus your image will have. You need to consider the trade off of speed vs. sharpness when you decide on how many clear zones to have.
For those who want to make there own, create a large drawing of the exact image of the zone plate, then photograph it on a high contrast black and white film, this will reduce the image to the correct size. If the film used is a standard negative film, the original drawing must be color reversed.
If you don’t want to go through hassle of doing the work, let someone else create them and deal with the process. That is why many people just pay the $25-$50 for a pre-made zone plate from an “official” source.
A whole new way to enjoy photography – http://www.zoneplate.net
About the Author
Our attitudes are our most important assets
Wave Zone Skim Jan. 2011 wz
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SiliconeZone New Wave Round Cake Pan, Bright Blue / Chocolate $25.00 For years, professional and commercial chefs have known the secret and benefits of using high-temperature silicone bakeware. New Wave Commercial quality Silicone Bakeware by SiliconeZone incorporates the same design and use features with added rigidity for easier handling. New Wave SiliconeZone Bakeware can go from temperature extremes of -58 F up to 428F, from freezer to oven. Our unique High Glo… |
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SiliconeZone New Wave Bund form Pan-10 cup, Bright Blue/Chocolate $25.00 For years, professional and commercial chefs have known the secret and benefits of using high-temperature silicone bakeware. New Wave Commercial quality Silicone Bakeware by SiliconeZone incorporates the same design and use features with added rigidity for easier handling. New Wave SiliconeZone Bakeware can go from temperature extremes of -58 F up to 428F, from freezer to oven. Our unique High Glo… |
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SiliconeZone New Wave Bund form Pan-10cup, Red / Pink $25.00 For years, professional and commercial chefs have known the secret and benefits of using high-temperature silicone bakeware. New Wave Commercial quality Silicone Bakeware by SiliconeZone incorporates the same design and use features with added rigidity for easier handling. New Wave SiliconeZone Bakeware can go from temperature extremes of -58 F up to 428F, from freezer to oven. Our unique High Glo… |
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Sounds of the Eighties: 1983-1984 $49.80 R988-11 (Cema Special Markets S21-18602) – Sounds of the Eighties: 1983-1984 – Various Artists [1995] All tracks stereo. I Want A New Drug – Huey Lewis & News/Head Over Heels – Go-Go’s/Electric Avenue – Eddy Grant/Miss Me Blind – Culture Club/Cruel Summer – Bananarama/(Keep Feeling) Fascination – Human League/Twilight Zone – Golden Earring/Promises Promises – Naked Eyes/Love Is A Battlefield – Pat… |
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D’Soca Zone 3rd Wave $9.19 All products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed…. |
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ASHEVILLE WOOD COMPLETE SWING $849.99 The Asheville Wood Swing Set is the perfect solution for smaller backyards and budgets. The Asheville Swing Set provides the joy of play in a compact design. This complete wood ready-to-assemble play set kit features the award-winning rapid-loc bracket system, designed for families that want everything in the box. This swing set features 15 sq. Ft. of deck space at a 4′ height, a cool wave slide, a 6 rock climbing wall, 2 swings and a double canopy roof. This kit comes complete with all of the pre-cut MCQ treated lumber, accessories, and hardware shown along with fully illustrated plans. The set dimensions measurements are 8′ w x 17′ l x 9′ h estimated minimum use zone: 27′ x 29′. The build time is estimated at 3-6 hours. Set-Up Dimensions Length: 17′ x Width: 8′ x Height: 9′ Carton Dimensions 1 -Box – Length: 90 x Width: 8 x Height: 11.75 – Weight 92lbs Carton Dimensions 2 -Box – Length: 88.75 x Width: 8 x Height: 12.5 – Weight 92lbs Carton Dimensions 3 – Box – Length: 95.5 x Width: 20.5 x Height: 11 – Weight 87lbs For private backyard use only, do not use in public settings For private backyard use only, do not use in public settings! Swing-N-Slide brand products are specifically designed for private backyard use They should never be used in public settings Examples of public settings are: schools, public parks, child care centers, country clubs, resorts, hotels, churches, and similar places of public assembly. |
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Annihilation 1 $25.69 The Annihilation Wave has come! Annihilus, lord of the Negative Zone, has declared war! Hordes of loyal soldiers swarm from the center of the universe, and only a handful of heroes can resist destruction! As the Xandarian Nova Corps meet its doom, only Richard Rider – the man called Nova – survives. Now the sole custodian of the Worldmind, the Zandarian’s database of knowledge and experience, can he rediscover himself in time to lead the war effort against the Annihilation Wave? Drax the Destroyer returns from exile on Earth to mentor Nova – but wait until you see his dangerous new persona! Guest-starring Quasar, Ronan the Accuser, the Super-Skrull and Thanos! Collecting Drax the Destroyer #1-4, Annihilation Prologue and Annihilation: Nova #1-4. |
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Belkin WaveRest Gel Mouse Pad, Black $16.99 She needs that report in five minutes and you’re cutting and pasting like a maniac, slamming your wrist onto your hard desk, you grip down on the mouse too tightly and start to loose feeling in your extended forefinger…Call the office manager and order yourself a WaveRest Gel Mouse Pad – because she’ll always need that report in five minutes and you’ll always need your wrists. The WaveRest Gel Mouse Pad offers ergo support for your wrists with its patented Wave design. The gel cushion creates a GelFlex Comfort Zone that contours to your wrist’s natural curves and movements and helps reduce hand and wrist stress that can lead to Repetitive Motion Disorders. |
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Belkin WaveRest Gel Mouse Pad, Silver $16.99 She needs that report in five minutes and you’re cutting and pasting like a maniac, slamming your wrist onto your hard desk, you grip down on the mouse too tightly and start to loose feeling in your extended forefinger…Call the office manager and order yourself a WaveRest Gel Mouse Pad – because she’ll always need that report in five minutes and you’ll always need your wrists. The WaveRest Gel Mouse Pad offers ergo support for your wrists with its patented Wave design. The gel cushion creates a GelFlex Comfort Zone that contours to your wrist’s natural curves and movements and helps reduce hand and wrist stress that can lead to Repetitive Motion Disorders. |
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Belkin WaveRest Gel Wrist Pad, Black $7.99 You’ve been checking the numbers all day but they don’t add up! Your wrist is pressed onto the hard desk and you can feel the soft tissues in your hand compressing into your nerves as you ten-key in the figures. Call the office manager, and order a WaveRest Gel Wrist Pad – because you love your job but you need your wrists. The WaveRest Gel Wrist Pad is an ergo support mouse pad that’s also perfect for people who use calculators, adding machines and other desktop machinery. Its patented Wave design and the GelFlex Comfort Zone contours to your wrist’s curves and movement which helps to reduce wrist stress that could lead to Repetitive Motion Disorders. |
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Belkin WaveRest Keyboard Wrist Support, Black $16.99 Are your feet evenly spaced? Are your wrists straight and floating over the keys? No??? The WaveRest Gel Wrist Rest remedies lazy hand and wrist posture while you type. As for the rest of your body – sit up straight, you look like a turtle! The WaveRest Gel Wrist Rest features GelFlex Comfort Zone, a gel-filled cushion that conforms to your wrists for maximum comfort and support, and a patented Wave design, which promotes proper hand and wrist movement. |
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Belkin WaveRest Keyboard Wrist Support, Silver $16.99 Are your feet evenly spaced? Are your wrists straight and floating over the keys? No??? The WaveRest Gel Wrist Rest remedies lazy hand and wrist posture while you type. As for the rest of your body – sit up straight, you look like a turtle! The WaveRest Gel Wrist Rest features GelFlex Comfort Zone, a gel-filled cushion that conforms to your wrists for maximum comfort and support, and a patented Wave design, which promotes proper hand and wrist movement. |
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Blue Wave Spa Alkalinity 2lb Jar $10.24 Blue Wave Spa Alkalinity Up: 2 lb. Jar Raising alkalinity to the safe zone of 80 to 150 ppm makes your pH easier to keep in line. |
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Cut Back $3.85 Impact Zone: The most dangerous part of the wave You gotta beat it…or you”ll eat it. Ever since he went up against the locals and broke into the lineup, Kai has had his own crew. Spazzy is a summer kid with a lot of fancy gear. He looks like a total shubee. But on the board he”s good, really good — despite everything going against him. The Spazz wants to be in the local competition, but he can”t do it without Kai. Kai knows there”s no way Spazzy can win against Lucas, the local hero. But Kai would never let a brah down…. |
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D’soca Zone 3rd Wave $10.45 D’soca Zone 3rd Wave |
