I finally 'get' equivalence

Started May 22, 2012 | Discussions thread
texinwien Veteran Member • Posts: 3,326
Re: light gathering

mh2000 wrote:

Exposure is based on light/area, but pixels provide the actual light gathering area. Tiny pixels spread across a large sensor do not capture anymore light than the same number of pixels spread across a smaller sensor.

Interestingly, this article claims that DSLR pixels tend to be larger than the pixels on a compact camera sensor. If that's the case - for instance, if a 16MP FF has pixels/photoreceptors that are four times larger than the 16MP OMD, I can understand the argument that FF gets more light, since each pixel (photoreceptor) will gather 4 times as much light as the smaller photoreceptor on smaller sensors.

Article: http://www.cambridgeincolour.com/tutorials/digital-camera-pixel.htm

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