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[OM] E-M5 II announced

Subject: [OM] E-M5 II announced
From: Mike Gordon via olympus <olympus@xxxxxxxxxxxxxxxxx>
Date: Thu, 5 Feb 2015 19:11:49 -0500
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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