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Sensors - does size and type matter by Think Camera

Digital Camera / dSLR guide
Written by Nature Sniper
Sunday, 16 December 2007
Photography has advanced considerably from its conception into the digital age. Along with such advancements come additional complications - different sensor types, a variety of sensor sizes, formats and files! So what does it all mean, and why does it even matter? Read what Mike Lowe has to say. The article covers some background on photography, image circles, optics, crop factor, sensor sizes, CCD and CMOS. A very informative article to read. The current market has cameras with a wide array of sensor sizes and types A bit of background Early optical or photographic devices (such as the camera obscura) were little more than a simple opening - sometimes with an equally simple lens - that would allow light to pass through, the goal being to generate an image circle broad enough to cover the area required. Notice 'image circle' - given the physical properties of light, when it passes through an aperture (i.e. opening) it will reform the image as a circular image element; we simply crop this down to a rectangular image for convenience, partly because the image circle will not be sharp or bright to the very edges, nor are circular formats consistantly useful: Full article and further comments: Sensors - does size and type matter? by Think Camera Recommend this article...

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