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04-24-2015, 06:25 AM   #31
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QuoteOriginally posted by biz-engineer Quote
I'm eager to compare a 4 x16bits TIFF stacked and sharpened image from K-3, with a K-3II pixel shift photo in the same conditions (same lens, lighting etc..). This does not make the K-3II "pixel shift" unattractive, the advantage of the K-3 II is that you have the sharper image already boiled for you, hopefully available in raw. I look forward to do a comparison.
With PS every single pixel will be exposed through the red, green and blue filter, while stacking four identical pictures will only get you the same interpolated color times four. That surely cannot be the same thing?

04-24-2015, 06:26 AM   #32
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Well, Verizon is still working on the download--can I get back to you in a week or so?
04-24-2015, 06:38 AM   #33
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Sampling four TIFF images without any pixel shifting would reduce noise and improve clarity of the resultant image, but the clarity would not be improved to the degree of the pixel shifted ones.

The noise is random in each image, so sampling four images will generally reduce the noise in the final image by the same amount in both cases. The improvement of the image clarity in sampling four static images is that the edges that were blurred by either the AA filter (due to the bayer sensor) or blurred by interpolation of the individual pixels could be sharpened by having more information from each of the images. With four stacked pixel shifted images, however, this guarantees that all the information in those edges are captured and no interpolation is needed.

To achieve the same, I think you need something like 16 stacked images (well someone else do the math =p) to guarantee capture of all four colors in the same location.
04-24-2015, 07:02 AM   #34
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QuoteOriginally posted by max_pyne Quote
i just thought about the 645Z, if they couple these tech with the 50mp...
Or the upcoming FF - the pixel pitch is the same, right?

04-24-2015, 07:10 AM   #35
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The real test to the value of PS will be when we'll see the same picture with and without PS. But the actual picture really look good!
04-24-2015, 07:42 AM   #36
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QuoteOriginally posted by CarlJF Quote
The real test to the value of PS will be when we'll see the same picture with and without PS. But the actual picture really look good!
I take it you've seen this?

04-24-2015, 07:43 AM   #37
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QuoteOriginally posted by biz-engineer Quote
We don't know yet if there is an electronic shutter taking place or still mechanical...
We know that is electronic shutter between images taken with pixel shift. Is in the features pages on Ricoh site.
04-24-2015, 08:02 AM   #38
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I wonder if dxomark.com will post test scores of this camera with pixel shifting on along with the other scores.

04-24-2015, 08:45 AM   #39
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I've just done a trial here, comparing 100% crops of 2 images: 1 image single shot sharpened, 1 image 4 x stacked shots + sharpened by the same amount, does not recover lost details. Lets see what the K-3II can do.

Last edited by biz-engineer; 05-02-2015 at 06:40 AM.
04-24-2015, 09:05 AM   #40
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Im hoping the next feature they incorporate is in-camera anti-ghosting. There seems to be unlimited room for software advances. For those who dont yet have the K3II, you could try this method A Practical Guide to Creating Superresolution Photos with Photoshop
04-24-2015, 09:14 AM   #41
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QuoteOriginally posted by biz-engineer Quote
I've just done a trial here, comparing 100% crops of 2 images: 1 image single shot sharpened, 1 image 4 x stacked shots + sharpened by the same amount, does not recover lost details. Lets see what the K-3II can do.
QuoteOriginally posted by Scobra Quote
Im hoping the next feature they incorporate is in-camera anti-ghosting. There seems to be unlimited room for software advances. For those who dont yet have the K3II, you could try this method A Practical Guide to Creating Superresolution Photos with Photoshop
Am I correct in assuming that is what biz-engineer has done in his example above?


Steve
04-24-2015, 09:28 AM   #42
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Wow are those really captured from Crop sensor camera? Nice sharpness and color.
04-24-2015, 09:33 AM   #43
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QuoteOriginally posted by stevebrot Quote
Am I correct in assuming that is what biz-engineer has done in his example above?


Steve
I think is not the same thing. Biz-engineer has stacked 4 images that are strictly the same. PS is changing the colored pixels position for every shot. and the results are different. There are already new threads about that.
04-24-2015, 09:49 AM   #44
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QuoteOriginally posted by zmohie Quote
From what I understand that the work way of SR and tripod
is opposite so if I want to use the feature I have to turn the SR /ON/ and at the same time I have to put the camera on a tripod.how will this be working properly!
QuoteOriginally posted by Alizarine Quote
The pixel-shift technology uses the SR mechanism to do its increase-dynamic-range thing. The 645Z's sensor doesn't have SR, so even with a firmware upgrade it isn't possible with the 645D/Z
So, if you are using the tripod for a shot that does not require (or you just don't want to) "PS", the SR should be OFF, as usual.
If you want to use PS, then you leave the SR "ON" ?

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04-24-2015, 10:29 AM   #45
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QuoteOriginally posted by jpzk Quote
So, if you are using the tripod for a shot that does not require (or you just don't want to) "PS", the SR should be OFF, as usual.
If you want to use PS, then you leave the SR "ON" ?
Just a second...I will look it up in the camera manual...

Oops! No manual! Silly me!


Steve
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