Regardless of whether it is a getaway that you are organizing or a festive occasion, the 1 issue that will make sure that all your memories are well-preserved is a digital camera With a digital camera you can capture all the memorable moments of your life. The photographs you click or the videos you record will bring a smile on your face for years to come. Snapdeal brings to you a wide variety of digital cameras that you can browse and take your pick. You can select on the basis of megapixels, zooming capacity, variety and more.
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The history of the digital camera started with Eugene F. Lally of the Jet Propulsion Laboratory , who was pondering about how to use a mosaic photosensor to capture digital photos. His 1961 concept was to take photographs of the planets and stars while travelling via space to give details about the astronauts’ position. Sadly, as with Texas Instruments employee Willis Adcock’s filmless camera (US patent 4,057,830) in 1972, the technology had but to catch up with the concept.
Digital single-lens reflex cameras (DSLR) use a reflex mirror that can reflect the light and also can swivel from one position to one more position and back to initial position. By default, the reflex mirror is set 45 degree from horizontal, blocks the light to the sensor and reflects light from the lens to penta-mirror/prism at the DSLR camera and soon after some reflections arrives at the viewfinder. The reflex mirror is pulled out horizontally beneath the penta-mirror/prism when shutter release is fully pressed, so the viewfinder will be dark and the light/image can directly strike the sensor at the time of exposure (speed setting).
The Bayer filter pattern is a repeating 2×2 mosaic pattern of light filters, with green ones at opposite corners and red and blue in the other two positions. The high proportion of green requires advantage of properties of the human visual system, which determines brightness mostly from green and is far much more sensitive to brightness than to hue or saturation. Sometimes a four-colour filter pattern is employed, frequently involving two different hues of green. This gives potentially a lot more correct colour, but calls for a slightly much more difficult interpolation approach.