The Sony A7r II has 42.4 (effective) Megapixels with a pixel area of 20.33µm2; and
the Sony A7s II has 12.2 (effective) Megapixels with a pixel area of 70.55µm2.
(both are FF camera's)
That is, A7r II has more pixels, whereas the A7s II has larger pixels.
I'm looking for a comprehensive list on what (dis)advantages larger pixels have over more pixles and vice versa, in general. The specific case of the A7r II vs A7s II can be used for explanation purposes.
List of Camera's with same sensor size and different number of pixels.
- A7r II, 42.4 megapixels
- Nikon D810, 36.3 megapixels
- Canon 5D Mark IV, 30.4 megapixels
- Nikon D610, 24 megapixels
- Sony A7s II, 12.2 megapixels
- Canon 1Ds, 11 megapixels
EDIT: This (old) part will be deleted later.
This is not a 'small' difference. How does this translate to usage? What is the possible 'aim' of Sony here? What can one do that the other can't, or at least not as good. Here is an obvious starting point:
- More pixels yield larger image, which is what you want if you're going to print large photos.
Why would you prefer one over the other? When just looking into the number of pixel and single pixel area.