Why not more pixels in the M camera?/ 36 MP {merged}

[Tailwagger]

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With one blow you have doubled the signal-to-noise ratio on the forum.

But on the other hand, it has been isolated in a corner... for the moment.  

[jaapv]

Indeed, just the S/N ratio of this thread has doubled, the rest of the forum has had a dose of verbal DFine

[jdlaing]

There is.

It is thus: In this thread we are postulating a 36 MP full-frame sensor, using the (excellent) technology from the 24 MP CL sensor.

Pixel pitch will be the same for both sensors, S/N ratio will be the same from the individual pixels. However, due to the 1.5x crop of the APS-C sensor, you will need to enlarge the image more to obtain the same print. This will enlarge sensor noise as well, which will be magnified by 1.5 EV value relative to the Full-Frame version.

 

This is exactly the same thing that happened when the APS-H sensor of the M8 got replaced by the Full Frame M9 sensor. Sensor technology remained the same, pixel pitch remained the same, yet noise levels dropped by one EV value. All due to the lesser magnification from the larger sensor.

 

As the newest generation sensors claim a better per-pixel  S/N ratio too, probably by the use of more pure materials, we can expect another 1/2 EV improvement in S/N ratio, improving a hypothetical Full-Frame 36 MP sensor of the next generation by 2 EV values better noise performance over the CL, which bodes well for the usable Dynamic Range (but is not the same thing ).

Only if you wanted to enlarge it to obtain the same print. But why would you want, or need, to do that. It would be the same as cropping the other one to be the same as the smaller sensor.

 

You’re dangerously close to the comparison cliff.

[pico]

[...]  As the newest generation sensors claim a better per-pixel  S/N ratio too, probably by the use of more pure materials, [...]

 

Excuse my ignorance. Which materials must be more pure?

[Tailwagger]

...the rest of the forum has had a dose of verbal DFine

 

Yes, but how many pixels worth?  

[jaapv]

Excuse my ignorance. Which materials must be more pure?

The ones that sensors are made of...

[jaapv]

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Only if you wanted to enlarge it to obtain the same print. But why would you want, or need, to do that. It would be the same as cropping the other one to be the same as the smaller sensor.

 

You’re dangerously close to the comparison cliff.

I like to take a photograph, the means to get there are relatively irrelevant, as long as they work.

You want or need to get the same print because that is the photograph you want to take.

[pgk]

Yes, but how many pixels worth?  

 

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