UTD Moose writes:
<<Most interesting previously unknown feature is that the sensor-shift super
rez mode, while slow, no IBIS, etc., takes more shots than necessary for <<the
rez - in order to eliminate Bayer array color, etc. problems by putting a
sensor of each color at each pixel location.
The feature is buried in the menus and Robin Wong was suprised about the fuss.
Given how long it takes to take all 8 shots, anything moving in a breeze or
moving wataer may be riddled with artifacts--same limitations as HDR though.
Oly appears to use nearest neighbor deconvolution in the processing. The
luminace resolution should about equal the D810 and the chrominance exceed
it. Suspect the results to average about the very best photoacute could achieve
in the best case scenario.
Pretty impressive at Imaging resource:
http://www.imaging-resource.com/PRODS/olympus-e-m5-ii/olympus-e-m5-iiA.HTM
Generates a 64MP ORF--not much processes it yet but quite cool. Perhaps they
could do a 4 shot true color mode.
Kinda the benefits of foveon without the downsides--recall it had huge
metamerism failure.
I read one source said the high rez mode lost a bit of dynamic range ( DR)
--not sure if correct but would make sense if it uses the total electonic
shutter.
Recall the GM-1 did above 1/500 uses the total electronic shutter and reverted
to 10 bit raw and lost more than a full stop of DR. It could clear the data in
1/25 instead of 1/15 or so, but at a cost. The lost 2 bits didn't matter that
much but something about the ADC noise with the higher data rate that I didn't
follow.
Even the already excellent IBIS is said to be even a tad better. Hard to keep
all the iteraations from Oly straight, but this is interesting.
Oh, sync speed it seems is 1/20 with EFC ---GM1/5 is 1/50. Shutter said to be
quite quiet--even more so than EM-1--bodes well for less shutter shock with
standard FC, but we'll see.
Interested Mike
--
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