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What is the reason behind a small sensor cameras in the bridge?
Hi, I found most of the best bridge cameras as Canon SX20 IS and the Sony HX1 have small sensors (1/2.3 and 1/2.4) in, respectively. I am also thinking of his zoom lens, the time may be much faster as the F: 2.0 to 4.0 in place of F: 2.8 – 5.7 for 20X optical zoom lens. Finally I have a question about the lens material at the time the camera bridge is mostly glass, which is much more durable or plastic to reduce weight and cost of the lens, and in this field are the names of the likes of Carl Zeiss, Lica, Nikkor, Schneider, Canon and Sony continues to believe (best quality). Thanks
Right start has to do with crop factor. First of all sensors young are cheaper to produce. Secondly they have a higher crop factor, as you notice some of the super zoom 28mm-500mm can do equal or more. But obviously to get the same on a DSLR you have to get a much larger goal. Why? Because a small sensor "Crop" it takes light from a smaller area of the real cup before and this means that although the glass can be only 6 mm, 96 mm. [Zoom 16x] from a factor crop, due to 5x only using a small glass area [compared with a full-frame model] gives 36 mm-576mm effective. But this has an effect negative, smaller sensors are more trouble gathering enough light is, more noise. Also the pixels of these tiny sensors are very very very small This makes the light collection issues and noise problems have many photosensitive sensors only in a small area. So you know your digital SLR with a nice big sensor is more real "pixels." Bigger sensors sensitive to light and gives a better picture quality. But require large lenses. Pacts their small sensors can transform a lens only goes to say 80/90mm in real life to a super zoom. But at a price as this affects field department, quality image, noise, etc. And you are right The good glass, therefore, why Canon P Series uses seriously good glass. Same with Sony Carl Zeiss and Nikon was use. That is fine. About the Department of Field, the apperture of the lenses used in the covenants and compact lenses are the same as with an SLR. But here it is, due to crop factor and how the light falls on the pact will make everything much clearer. A compact F2, 8 could easily be a full F11 SLR Marcos. So that what the pictures with a compact soft is much more difficult to do.
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