June
Transcription
June
June, 2010 3D or not 3D, That is the Question The hype has begun and is already hard to avoid. This was excellent 3D imagery, but it could not be printed onto paper or capture the full spectrum of Some recent topics in the news have been colors. Best Movie: Avatar in 3D There are other ways to create the illusion of Most innovative camera: Fujifilm 3D Consumer Electronics Technology Awards: depth in picture taking by learning how to use light. Many photographers agree that the quality of light 3D TV is far more important than the quantity. The underSimply put, the entire concept of 3D is to put the standing of light, as well as controlling it, is what illusion of depth into a flat surface. There have separates amateurs from professionals. Here are been several attempts at achieving this during the some techniques for using light to increase the illast half century, mostly involving special eye wear lusion of depth in photos. to create the effect using two out of register im• It may sound obvious, but in order to have depth ages. in a photo, the subject(s) and background must In 1982, Nimslo cameras were introduced. Where- not be the same distance from the camera. The as most 3D cameras used transparency (slide) film amount of separation between them is dependent (and a special viewer), the Nimslo used standard on the image sizes - the smaller and more distant 35mm color print film and delivered 18 3.5”x4.5” the subject, the more separation is needed from vertical prints from a 36 exposure roll. All pictures the background. The opposite is true as well. had to be vertically composed when over 96% of all photos taken were composed horizontally. No • The camera must be level to simulate the fact special glasses were required, because the im- that people stand up straight and erect. Humans ages were printed on a lenticular surface. Instead have 2 eyes mounted facing the same direction of being flat, a lenticular surface has many parallel spaced several inches apart. This interocular disdouble convex surfaces. The cameras and prints tance allows for binocular cues which permit depth were not high quality, and the prices were very perception. When viewing with only one eye open high. After the marketeers hype wore off, the hot this perception is lost. When the head is not levselling products quickly went by the wayside and el, the visual relationship between subject(s) and background becomes distorted. the company was sold. During the 1970s there was the mass introduction of holography. Dictionary.com defines a hologram as “a negative produced by exposing a highresolution photographic plate, without camera or lens, near a subject illuminated by monochromatic, coherent radiation, as from a laser: when it is placed in a beam of coherent light a true threedimensional image of the subject is formed.” 1 As an example, when looking at another person directly in the foreground, the background is what is behind the person. If the person is viewed looking up from knee level, the background is no longer behind the subject, but above. The brain interprets this as incongruous. If at Grand Canyon the camera is held level, pointed across the abyss, the perception of the canyon’s depth is extreme. June, 2010 If the camera is pointed down to see more of the river below, the perception of depth is gone. Snap Shots • In darkness there is no discernible third dimension. When looking up at the sky at night, all the stars look the same distance away. As the scene becomes brighter, depth perception increases. In lower light levels (with the resulting lack of contrast) 3D is not perceived. Just because you have a camera, film or memory card and a great subject, don’t be alarmed if you are hassled, arrested, injured and have your equipment confiscated. Follow the link to an article regarding 1st Amendment rights as it pertains to photographers. As Walt Kelly once wrote, “We have met the enemy, and he is us.” Curiously, when the light source is directly above, such as at noon, the feeling of depth is diminished because everything in the field of view is lit the same way. There are no shadows or contrast which negate any binocular cues. Taking photos in varied lighting, especially with shadows, increases the binocular cues. http://carlosmiller.com/2009/06/04/federal-judgerules-against-photographer-who-was-arrested/ Summer school is in full swing at B.I.P.S. (Better Imaging Photo School). There are several new • When in doubt, supplement the ambient light to classes, including “Flower and Garden Photograbrighten the foreground only. This technique also phy”, “Success with Flash”, and “Essential Photosoftens harsh shadows which may be caused by shop Tricks”. Classes are intentionally kept small, low angle lighting. If the situation allows, using a so sign up today via either web site, telephone, or reflector to change the angle of a bright light can best of all, in person. A complete schedule is athelp whether a flash is used or not. tached. Keep in mind that 3D always exists, whether perceived or not. Some of the 3D effects on TV or in the movies are exaggerated to unnatural special effects. If everything in the world was seen as a Jerry recently came across an article from the June computer generated special effect the world would 2, 2008 issue of Scientific American regarding be a much scarier place. Digital Forensics. What is seen isn’t always what was real ... http://www.scientificamerican.com/article. cfm?id=5-ways-to-spot-a-fake 2 Win a ? June, 2010 Enough words on a screen. It’s great weather and there’s so much to photograph. Madison PhotoPlus The first person to enter each of our stores and says, “I hope I’ve won the (name of the item pictured below) that was in the June Newsletter” will do just that. We hope it’s you! 40 Main St., Madison, NJ 07940 v.973.966.2900; f.973.377.1458 www.madisonphoto.com Eric, Jerry, Joy, Marie, Mario, Rob , Sybil & Vincent the PhotoSummit 383 Springfield Ave., Summit, NJ 07901 v. 908.273.7427; f.908.277.0218 www.photosummit.com Bret, John P, John T, , Josh & Lynne, Two stores - one prize waiting in each store! Same camera, same lens. No cropping, these are the full files. 3
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