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Re: [OM] OT: Recent debate on crop v FF

Subject: Re: [OM] OT: Recent debate on crop v FF
From: Moose <olymoose@xxxxxxxxx>
Date: Tue, 20 Jan 2015 17:16:07 -0800
On 1/20/2015 2:45 PM, Mike Gordon via olympus wrote:


Yeh,
Seems to me they are milking that sensor (very very nice though it is) for all it is worth.

Might it be that a better one is not yet available? Oly ain't makin' 'em.

In my recent FF, APS-C, 4/3 comparison,I also downloaded DPR's 1600 ISO studio shots for the E-M5 and GX7. At 100%, with the area I used, I just can't see any difference between the Olys, and the Panny is very, very close to the same. On some test shots I did a while ago on a very different subject, Viewer 3 did a better job of NR than ACR, with no false color artifacts. But on this one, is was not good, even when I turned it and sharpening off, the result was overdone - or I can't figure out what I did before.

Suspect using the sensor shaker to offset the images and
combing them will be nicely implemented. Strikes me as largely identical to using Photoacute in post from multiple shots.

It's not clear to me how photoacute works. Certainly they don't have precisely places overlapping images. Does it depend in part on minute movement of the image on the sensor between shots? That they require profiles by camera and lens suggests it's not much like the sensor shift solution Hassy uses and Oly is rumored to be about to use. I can't see where it would depend on the lens. Looking at their instructions for making shots to allow them to create a profile, it again looks like something quite different from the sensor shift model.

http://www.photoacute.com/

The algorithm is more elegant than merely stacking in photoshop to average out noise. Whether it truly adds back "resolution" per se or really just acutance and more accurate edge placement is not really clear to me.

Clearer edge definition and placement comes pretty close to a definition of 
resolution, no?

In some situations it  seems it might even be able to infer detail above the 
Nyquist frequency.
Has anyone tried this?  Even if not, what do you think?


They only cover two of the camera/lens combos I care about, E-M5 with 12-50 and 
Panny 20/1.7


I can see it now--Multi-row HDR pano, focus stacked, and resolution enhanced with Photoacute--gives me a headache thinking about it and might take up half a HD.

New generation improved sensor

I think you are waiting on Sony or Panny for that.

--
What if the Hokey Pokey *IS* what it's all about?
--
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