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Digital cameras and its types and specifications.
This document discusses the specifications of digital cameras. It begins with a brief history of digital cameras, invented in 1975 by Steven Sasson at Kodak. There are three main types: point and shoot, mega zoom, and DSLR. Key specifications that determine camera quality include sensor type and size (larger is better but more expensive), image processor brand, resolution in megapixels, aperture size of the lens (lower number means larger aperture), ISO sensitivity range (higher means better in low light), shutter speed range, and video capabilities like frames per second (higher is smoother). Other factors include screen size and quality, zoom range, storage options, battery life, connectivity and camera size/weight. Overall image
Digital cameras and its types and specifications.
- 1. DIGITAL CAMERA & ITS SPECIFICATIONS ByVinesh C.H
- 2. INTRO TO DIGITALCAMERA ď‚— A digital camera is a camera that encodes images DIGITALLY and stores them for later reproduction of image. ď‚— Steven Sasson who worked as an engineer at Eastman Kodak invented & built the first Digi cam in 1975. ď‚— Today Nikon and Canon are the front runners in Digi Cam manufacturing.
- 3. TYPES OF DIGI-CAMS 1.POINT AND SHOOT 2. MEGA ZOOM 3. DSLR (DIGITAL SINGLE LENS REFLEX)
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- 7. SPECIFICATIONS TO WATCHFOR 1. SENSOR TYPE AND SIZE 2. IMAGE PROCESSOR 3. RESOLUTION 4. APERTURE OF THE LENS 5. ISO SENSITIVITY 6. SHUTTER SPEED 7. VIDEO CAPABALITIES
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- 9. TYPES OF SENSORS 1.CMOS 2. CCD (Charge coupled device)
- 10. SENSOR SIZE ď‚— Sensorsize is the dimensions of the array of photoreceptors that create the pixels that become an image. ď‚— Bigger sensors generally produce better photo quality, but the bigger the sensor the bigger the camera. ď‚— Larger sensors are also more expensive to make, so the cameras are pricier.
- 11. SIZE COMPARISION OFSENSORS
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- 13. IMAGE PROCESSOR ď‚— Animage processor,also called as media processor,is a specialised digital signal processor used for image processing in digital cameras,mobile phones etc. ď‚— Noise reduction & Image sharpening are done by the processor.
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- 15. PROCESSORS OF VARIOUSCOMPANIES  NIKON - EXPEED  CANON – DIGIC  SONY – BIONZ  SAMSUNG – EXYNOS  OLYMPUS – TruePic  PENTAX - PRIME
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- 17. RESOLUTION ď‚— Resolution isthe capabality of the sensor to observe or measure the smallest object clearly with distinct boundaries. ď‚— In genral,its the pixel count in the sensor. ď‚— If a sensor has N pixels horizontally and M pixels vertically,then the resolution of the camera is said to be MxN Pixels.
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- 20. APERTURE OF THELENS ď‚— The aperture is the size of the opening that lets in light, alternatively referred to as an f-stop or f number. ď‚— The lower the number the larger the aperture. ď‚— As aperture size increases, the area of sharpess in front of and behind the subject increases
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- 23. ISO SENSITIVITY  Acamera's sensitivity to light is specified as ISO sensitivity.  The higher the number, the better the camera's ability to shoot in low light.  Higher the ISO,more grains in the image.  For instance, a camera rated up to ISO 6400 will probably produce decent images up to ISO 800.  Normal ISO range is from 200 to 1600 in most of DSLR’s.
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- 26. SHUTTER SPEED ď‚— Shutterspeed controls how long the camera spends collecting light i.e how much light is taken in at once. ď‚— It is measured in fractions of a second. ď‚— More the shutter speed,less risk of blur.
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- 29. VIDEO CAPABALITIES ď‚— Thevideo capabality of a camera is measured by the unit frames per second(fps). ď‚— Higher the fps,smoother the video. ď‚— These days cameras come with either 30 or 60fps.
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- 34. OTHER SPECIFICATIONS ď‚— LCDSCREEN SIZE,TYPE & RESOLUTION ď‚— IMAGE STABILIZATION ď‚— AUTO FOCUS ď‚— ZOOM ď‚— DIFFERENT FILTERS / EFFECTS ď‚— STORAGE ď‚— BATTERY LIFE ď‚— WIRELESS CONNECTIVITY ď‚— WEIGHT AND SIZE ď‚— WEATHER SEALED
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