OMD with more MP?

Started 6 months ago | Questions thread
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In reply to Anders W, 6 months ago

Anders W wrote:

Tony8232 wrote:

If each pixel can have more dynamic range due to less noise the overall DR has to go up at least as I see it. How does the new senor have increased DR it has to be because of superior design. Couple that with the larger pixel size of the 12mp sensor that gathers more light at the same exposure then to me it seems to be obvious that DR will go up.

What you overlook (and what Ulric has in mind) is that you can regain the DR lost because of smaller pixels by downsampling or, equivalently, using a bit more NR.

Well, not "equivalently"; rather, "more efficiently".  That is, using NR will result in more detail being retained for any given noise level or less noise for any given detail level than downsampling.

The idea here is that a sensor with more pixels can give you more flexibility. If the light is good and you can shoot at base ISO where noise is not troublesome, you can enjoy the additional resolution. If the light is not so good and you need to shoot at higher ISOs, you can trade the extra resolution for better signal-noise performance by means of downsampling/NR.

Perfectly stated!

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