16MP sensor improvements?

Started Apr 24, 2013 | Questions thread
richarddd
richarddd Senior Member • Posts: 2,982
Re: Keep in mind.....

tedolf wrote:

Msnap wrote:

How much better is the new sensor that Olympus use in the E-PM2 and other recent models? I know it's higher resolution, but I imagine it has a measurable improvement in terms of Stops? Or can it just go to higher ISOs?

Thanks

that you will have more diffraction effects with more pixels on the same size sensor.

"For a given sensor size and lens, more pixels always result in more detail -- that's a fact.  As we stop down and the DOF deepens, we reach a point where we begin to lose detail due to diffraction softening.  As a consequence, photos made with more pixels will begin to lose their detail advantage earlier and quicker than images made with fewer pixels, but they will always retain more detail.  Eventually, the additional detail afforded by the extra pixels becomes trivial (most certainly by f/32 on FF).  See here  for an excellent example of the effect of pixel size on diffraction softening."

http://www.josephjamesphotography.com/equivalence/index.htm#diffraction

The 12mp sensor can be stoped down to f/11-16 without a lot of noticable diffraction.

With the 16mp sensor you are going to start seeing diffraction at f/8.

So the extra resolution is not without cost.

Important for macro and wide angle shots with something in the foreground.

Also, most people rarely print above 16 x 20 so the extra resolution really isn't neccessary.

Dynamc range does seem to be better but there are other ways to handle that.

Tedolph

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