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The 'All Canon EF-M lenses' club

Started 5 months ago | Discussions thread
Sittatunga Veteran Member • Posts: 5,406
Re: About the R10
2

Maxmolly7 wrote:

Your aperture calculation is about DOF equivalence, the light capturing remains as stated on the lens.

You need 2 zooms on the RP to cover the range of the Sony. On R7 or 10 it already take 3 lenses to cover wide setting at 24mm. 🤷

It's also about the total number of photons captured to make the image. That governs the total (random) photon and electronic noise, and hence the noise of the total image. The intensity of the light per square mm is governed by the f/number, but there will be less average random noise over a larger area than a smaller area at the same intensity. The noise is roughly proportional to the square root of the number of photons, so also to the square area of the sensor, and also to the crop factor.

By definition, an APS-C outfit will be bigger and better than a 1" sensor superzoom camera, but a â…”" travel camera will be still smaller and not as good as a 1" sensor. TANSTAAFL.

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