Archive for the ‘lenses’ tag
Tele Wide
Need a definition or meaning of certain technical terms in digital camera?
Wide angle, zoom, macro distance, max. wide open, TV Opening Min, Max. telephoto, the sequence (fps), USB.
Forget about catching a minute and talk as a focal point. Depending than went to school "normal" focal length is about 50-55 mm. This is supposed to similar to what the human eye sees naturally. Major angles are smaller so a 35 mm (nothing to do with the 35 mm film) is a wide angle lens. 28 mm lens is very wide-angle 12 mm and an ultra wide angle. (Details vary a little). On the contrary, any lens with a number greater than 55 mm is a telephoto lens. 80 mm lens. 200 mm super-telephoto, and so on. The lens may have fixed lengths, glasses of high quality can have a fixed-length portrait of 50 mm. However, some lenses tend to have the ability to vary its focal length. For example, from 50 to 120 mm Zoom cover the range from normal to telephoto. A lens that covers from 18 to 55 mm telephoto zoom is always a but is not, so do not confuse the two. Openness is the amount of surface of the lens can be used for photography. In a perfect world it would be able to use this entire surface of the lens opening of the F1. In the world real, even a high quality lens can only use half of the region and has an aperture of f2. Some objectives can only use up to 1 / 5 of the cup and therefore have a maximum value of F5. Sometimes we have to reduce the amount of light entering the lens, so they have a membrane that can close in a circle in the center the lens to reduce the glass surface. When only 1.8 glass is not covered by the diaphragm, we are now using the lens at f8. 1 / 16 of the lens and there is the F16 and so on. It does not set goals or zoom may have a different maximum aperture according to the amount that extend, so a 28-200 lens can 1/3.5 to use the glass of 28 mm, but is only able to use the crystal 1/5.6 with a zoom of 200 mm. Therefore, the maximum aperture This lens is said to f3.5 – 5.6. (Note that the smaller the number, the greater the opening) The minimum aperture is a measure of the membrane and can be closed down, in some cases, leave as little as 1 / 45 of the glass available for use in other words, a value of F45! Macro is the ability to concentrate on a nearby object to the overall long telephoto lens, and magnifying the image. Macro focus range is the range of distances the lens can focus on when in this mode. Sequence (FPS) refers to the ability of the camera to capture the video. FPS = Frames per second. If the video is captured at least 15 frames per second, the quality is poor and looks nervous. Most cameras these days can make 25 to 30 fps. USB = Universal Serial Bus This is a computer standard that allows devices to connect to a computer that is running. Almost all devices are connected via USB and all the computers in less than 5 years have USB ports. Hope this helps.
Niagara Falls EOS movie Tele / Wide Cut Back
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Tele Talk $15.50 … |
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Tele Vue NEW Up-Dated NP127is Imaging System 5 f/5.2, 4-Element APO Refractor Telescope Optical Tube Assembly, Ivory, New 10:1 focuser pinion assembly made for Tele Vue by Starlight Instruments. New lens prescription delivers smaller spots sizes over a broader wavelenght range. $6,999.99 Concept: CCD cameras have challenged telescope optics beyond anything ever placed at the focal plane. Tele Vue knew it’s APO objectives were up to the challenge, & with the proper tweaks would be extraordinary tools for the imager. With Tele Vue Imaging System (is) telescopes, they have refined their instruments & optional equipment beyond anything a CCD chip has seen.For 25 years, Tele Vue has pu… |
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RAM Mounting Systems RAM-VB-167-SW1 No-Drill Vehicle Laptop Computer Mount for Ford Fusion (2006-Newer), Lincoln MKZ (2007-Newer), Mercury Milan (2006-Newer) $168.74 RAM Mounts RAM-VB-167-SW1 RAM UNIVERSAL SYSTEM FORD FUSION MERC MI… |
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Pioneer AVIC-Z120BT 7 In-Dash Double-Din Navigation CD/DVD/MP3 with Pandora iPhone streaming $1,499.99 Pioneer’s new flagship AVIC-Z120BT integrates sophisticated navigation capabilities as well as new groundbreaking features, including a revolutionary 3D touch slide interface, Pioneer MusicSphere and ECO Graph. In addition to built-in navigation capabilities, the new double-DIN AVIC-Z120BT features a large motorized 7-inch WVGA hi-resolution touchscreen display, a 3D graphics accelerator, DVD play… |
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RAM Mounting Systems RAM-VB-137-SW1 No-Drill Vehicle Laptop Computer Mount for Toyota Camry (06-Newer), Toyota Corolla (03-08), Toyota Matrix (03-08), and Pontiac Vibe (03-08) $184.60 RAM Mounts RAM-VB-137-SW1 VEHICLE SYSTEM 2006 – TOYOTA CAMRY… |
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DSi Protective Case with 3 Lenses – Black $12.06 Protective Case with 3 Lenses Black for DSi This see through plastic Hard Case with 3 camera lens attachments will keep your Nintendo DSi protected while allowing you to take pictures in a whole new way. Designed for a perfect fit, this plastic case allows easy access to all functions and controls through its specific DSi molded shape. For the first time on the DSi, you”ll have the ability to Zo… |
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DSi Protective Case with 3 Lenses – Pink $9.76 This see-through plastic Hard Case with 3 camera lens attachments will keep your Nintendo DSi protected while allowing you to take pictures in a whole new way. Designed for a perfect fit, this plastic case allows easy access to all functions and controls through its specific DSi molded shape. For the first time on the DSi, you will have the ability to zoom in more and take wide angle shots with th… |
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TomTom XXL 550TM 5-Inch Portable GPS Navigator (Lifetime Traffic and Maps Edition) $249.90 Touch screen technology gives you the easiest operation to make using your device a pleasure. IQ Routes technology calculate your routes based on the real average speeds measured on roads. The TomTom XXL 550TM Auto GPS Receiver always provides you with the fastest route, and most accurate travel time, hour-by-hour, day-by-day, saving you time, money and fuel. The TomTom XXL 550TM Auto GPS Receiver… |
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TomTom XXL 550T 5-Inch Portable GPS Navigator (Lifetime Traffic Edition) $179.95 TomTom XXL 550T (Lifetime Traffic Edition) – Box… |
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TomTom XXL 550M 5-Inch Widescreen Portable GPS Navigator (Lifetime Maps Edition) $189.95 Outsmart road changes with the TomTom XXL 550·M–complete 5-inch widescreen navigation plus Lifetime Map Updates*. On average, 18% of road information changes each year, so it is important to have the most up-to-date maps. With Lifetime Map Updates, start fresh every few months by downloading a new edition of the industry’s most accurate map. New editions are issued four times per year. Since Tom… |