{"id":885,"date":"2009-01-29T20:45:00","date_gmt":"2009-01-29T07:45:00","guid":{"rendered":"http:\/\/www.kentyuphotography.com\/blog\/2009\/01\/camera-sensor-sizes.html"},"modified":"2012-02-29T11:50:11","modified_gmt":"2012-02-28T22:50:11","slug":"camera-sensor-sizes","status":"publish","type":"post","link":"https:\/\/www.kentyuphotography.com\/blog\/camera-sensor-sizes\/","title":{"rendered":"Camera Sensor Sizes"},"content":{"rendered":"
The size of the camera sensor can affect
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1. the angle of view of the lens (crop factor); <\/p>\n

2. noise leve; and <\/p>\n

3. dynamic range <\/p>\n

Different image sensor size<\/strong> <\/p>\n

Medium format – 51x39mm <\/p>\n

Full frames (FX) – 36x24mm. e.g.Nikon D3, D700; Canon 1D, 5D<\/div>\n

DX format (DX) – 24x16mm for Nikon, 22x15mm for Canon, 21x14mm for Sigma. e.g. Nikon D300, D90; Canon 50D, 450D. Note that Nikon APS-C sensor is the largest of all. \ud83d\ude00
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Compact cameras – ~8x6mm. <\/div>\n
Sensor Sizes<\/div>\n

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Refer to the charts above, compact camera sensors are about 9 times smaller than the APS-C and 20 times smaller than the full frame format. <\/p>\n

In terms of noise performance, the desirable properties of signal-to-noise ratio (SNR) and sensor unity gain both scale with the square root of sensor area. Therefore, typical DX and FX DSLRs will have a SNR that is sqrt(9)= 3 times and sqrt(20)= 4.5 times higher than a compact digital camera respectively. <\/p>\n

Because of this, DSLRs can offer high-quality pictures even at high ISO, while compact cameras tend to produce grainy images. Typically, noise starts to be noticable for <\/p>\n

FX – @ ISO 3200+ <\/p>\n

DX – @ ISO 1600+ <\/p>\n

Compact – @ISO 200+ <\/p>\n

The noise level is also exacerbated by pixel count where higher number of pixels means a higher pixel\/mm2 (higher pixel density) and hence noiser image.<\/p>\n

Different sensor types<\/p>\n

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<\/strong><\/p>\n

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The size of the camera sensor can affect 1. the angle of view of the lens (crop factor); 2. noise leve; and 3. dynamic range Different image sensor size Medium format – 51x39mm Full frames (FX) – 36x24mm. e.g.Nikon D3, D700; Canon 1D, 5D DX format (DX) – 24x16mm for …<\/p>\n","protected":false},"author":1,"featured_media":3865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[150],"class_list":["post-885","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gear-talk","tag-sensors"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t