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sas8888 · 07-23-2018, 11:08 AM

Originally posted by house

A pixelshifted jpeg is not necessarily any larger than its normal counterpart. Uncompressed tiff should be exactly the same size. Once demosaiced it's just the same amount of flat pixels. Detail and noise makes jpgs compress less well hence a bit larger file size. Pixelshift reduces noise and enhances detail so where you land is hard to say.

The jpeg is a saved directly from the raw processed dng P/S not out of camera jpeg.
If the tiff should be the same then where are all the extra pixels coming from? A dng to tiff is right at 35 to 40 MB which is where I would expect it.

house · 07-23-2018, 02:09 PM

Originally posted by sas8888

The jpeg is a saved directly from the raw processed dng P/S not out of camera jpeg.
If the tiff should be the same then where are all the extra pixels coming from? A dng to tiff is right at 35 to 40 MB which is where I would expect it.

There are no extra pixels in a processed pixelshift file. Four normal pixels are merged into one with better accuracy but as data it's still just one pixel. As I said however , PS files have more detail so might compress less than a normal file if noise is low enough.

ghl · 07-26-2018, 10:50 AM

Originally posted by sas8888

K1 Irix 11mm Sunset

Hand Held P/S
Processed in C1. I have been noticing that C1 seems to be handling the P/S photos better. the output would also suggest that C1 is handling the photos differently as the Jpeg are in the 35 to 40 MB range and the tiffs are over 200MB. The recovery of the darks is excellent.

Very nice shot, sas8888. Love this pixel shift thread.

alvaro_garcia · 07-29-2018, 05:18 AM

Most of the shots posted here are really amazing, however I have to say that after seeing the difference between non pixel-shifted images and pixel-shifted ones in several reviews/threads, the difference is only noticeable by zooming-in the image and, in any case, it looks minimal to me.

If I was a tripod shooter though, I'd probably be shooting with pixel-shift "on" frequently. But I'm not and I prefer to avoid artifacts (hand held shooting) than the marginal improvement I may get.

Last edited by alvaro_garcia; 07-29-2018 at 05:52 AM.

sas8888 · 07-29-2018, 07:21 AM - **1 Like**

Originally posted by alvaro_garcia

Most of the shots posted here are really amazing, however I have to say that after seeing the difference between non pixel-shifted images and pixel-shifted ones in several reviews/threads, the difference is only noticeable by zooming-in the image and, in any case, it looks minimal to me.

The difference I find is in the processing of the photo and not necessarily the looks. I am able to recover a little more out of the shadows and low light performance gives me just a little more to work with. In good light I feel you are correct the difference is minimal in my experience.

house · 07-29-2018, 11:20 AM

Pixelshift works well for some subjects. It there is a lot of very fine high contrast detail it is capable of bringing out astonishing detail.

**Rondec** · 07-30-2018, 10:56 AM - **1 Like**

Originally posted by alvaro_garcia

Most of the shots posted here are really amazing, however I have to say that after seeing the difference between non pixel-shifted images and pixel-shifted ones in several reviews/threads, the difference is only noticeable by zooming-in the image and, in any case, it looks minimal to me.

If I was a tripod shooter though, I'd probably be shooting with pixel-shift "on" frequently. But I'm not and I prefer to avoid artifacts (hand held shooting) than the marginal improvement I may get.

It is what sas says. If you don't do any post processing, then the benefit is small to say the least. If, on the other hand, you typically push shadows and attempt to maximize a single image with post processing, then you will see a fair amount of improvement with pixel shift.

**Rondec** · 07-31-2018, 03:14 AM - **3 Likes**

View From the Fishing Pier (pixel shifted)

**microlight** · 07-31-2018, 05:37 AM

Mo-o-o-oody!

pinholecam · 08-02-2018, 06:31 PM - **2 Likes**

K1+Laowa 12/2.8 pixelshift

Full sized file here :
IMGP6395-PS.jpg - Google Drive

krazykat · 08-03-2018, 01:28 AM

Originally posted by pinholecam

K1+Laowa 12/2.8 pixelshift

Full sized file here :
IMGP6395-PS.jpg - Google Drive

Hey pinholecam,

How are you finding the Laowa 12mm, both in general and for pixel shift? I'm thinking of getting one...

Cheers.

pinholecam · 08-03-2018, 01:59 AM - **1 Like**

Originally posted by krazykat

Hey pinholecam,

How are you finding the Laowa 12mm, both in general and for pixel shift? I'm thinking of getting one...

Cheers.

I think its the best UWA prime I have used so far for Pentax.

Good flare tolerance (better than A15; IRIX 15; Samyang 14).
Better distortion
Much better build than the Samyang, on par with the Irix.
'A' lens is always convenient being able to easily shoot with a histogram in LV (I use this a lot for landscapes)
Infinity marking is accurate.
Smaller than the 14-15mm mentioned above and its a 12mm not 14-15mm
Good IQ even with Composition Adjustment at the max

Resolution is good, but I find that my Samyang is sharper by a hair.
But then, this is 12mm and not 14mm.

Pixel shift will always have the advantage of bringing up the fine details in things that would other wise be blurred by the AA filter.
Eg. leaves on trees; textures on walls/surfaces; fine/distant lettering.
So the Laowa will certainly be good for this.
The only thing is that its not as high resolution a lens to bring out the full splendor of pixel shift if I compared it to very sharp lenses like K28/3.5 (at f8) and FA50/1.4 (at f8).
Do note, not saying its not sharp, just that a UWA won't be as sharp as a good 28mm or 50mm.

**Rondec** · 08-03-2018, 05:28 AM - **3 Likes**

Ship at Sunrise (DFA 24-70, K-1 II, Pixel Shift)

**microlight** · 08-03-2018, 09:35 PM

Superb; motion correction on, probably? 😜 Which software did you process with?

**Rondec** · 08-04-2018, 02:42 AM

Originally posted by microlight

Superb; motion correction on, probably? 😜 Which software did you process with?

I don't use motion correction in the camera, but did in Raw Therapee, which is my processor of choice for pixel shift images.

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07-23-2018, 11:08 AM	#781
sas8888 Forum Member Join Date: Jun 2016 Posts: 67	Originally posted by house A pixelshifted jpeg is not necessarily any larger than its normal counterpart. Uncompressed tiff should be exactly the same size. Once demosaiced it's just the same amount of flat pixels. Detail and noise makes jpgs compress less well hence a bit larger file size. Pixelshift reduces noise and enhances detail so where you land is hard to say. The jpeg is a saved directly from the raw processed dng P/S not out of camera jpeg. If the tiff should be the same then where are all the extra pixels coming from? A dng to tiff is right at 35 to 40 MB which is where I would expect it.

07-23-2018, 02:09 PM	#782
house Pentaxian Join Date: May 2015 Photos: Albums Posts: 3,306	Originally posted by sas8888 The jpeg is a saved directly from the raw processed dng P/S not out of camera jpeg. If the tiff should be the same then where are all the extra pixels coming from? A dng to tiff is right at 35 to 40 MB which is where I would expect it. There are no extra pixels in a processed pixelshift file. Four normal pixels are merged into one with better accuracy but as data it's still just one pixel. As I said however , PS files have more detail so might compress less than a normal file if noise is low enough.

07-26-2018, 10:50 AM	#783
ghl Senior Member Join Date: Feb 2008 Location: California Posts: 119	Originally posted by sas8888 K1 Irix 11mm Sunset Hand Held P/S Processed in C1. I have been noticing that C1 seems to be handling the P/S photos better. the output would also suggest that C1 is handling the photos differently as the Jpeg are in the 35 to 40 MB range and the tiffs are over 200MB. The recovery of the darks is excellent. Very nice shot, sas8888. Love this pixel shift thread.

07-29-2018, 05:18 AM	#784
alvaro_garcia Senior Member Join Date: Feb 2018 Posts: 185	Most of the shots posted here are really amazing, however I have to say that after seeing the difference between non pixel-shifted images and pixel-shifted ones in several reviews/threads, the difference is only noticeable by zooming-in the image and, in any case, it looks minimal to me. If I was a tripod shooter though, I'd probably be shooting with pixel-shift "on" frequently. But I'm not and I prefer to avoid artifacts (hand held shooting) than the marginal improvement I may get. Last edited by alvaro_garcia; 07-29-2018 at 05:52 AM.

07-29-2018, 07:21 AM - 1 Like	#785
sas8888 Forum Member Join Date: Jun 2016 Posts: 67	Originally posted by alvaro_garcia Most of the shots posted here are really amazing, however I have to say that after seeing the difference between non pixel-shifted images and pixel-shifted ones in several reviews/threads, the difference is only noticeable by zooming-in the image and, in any case, it looks minimal to me. The difference I find is in the processing of the photo and not necessarily the looks. I am able to recover a little more out of the shadows and low light performance gives me just a little more to work with. In good light I feel you are correct the difference is minimal in my experience.

07-29-2018, 11:20 AM	#786
house Pentaxian Join Date: May 2015 Photos: Albums Posts: 3,306	Pixelshift works well for some subjects. It there is a lot of very fine high contrast detail it is capable of bringing out astonishing detail.

07-30-2018, 10:56 AM - 1 Like	#787
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,665 Original Poster	Originally posted by alvaro_garcia Most of the shots posted here are really amazing, however I have to say that after seeing the difference between non pixel-shifted images and pixel-shifted ones in several reviews/threads, the difference is only noticeable by zooming-in the image and, in any case, it looks minimal to me. If I was a tripod shooter though, I'd probably be shooting with pixel-shift "on" frequently. But I'm not and I prefer to avoid artifacts (hand held shooting) than the marginal improvement I may get. It is what sas says. If you don't do any post processing, then the benefit is small to say the least. If, on the other hand, you typically push shadows and attempt to maximize a single image with post processing, then you will see a fair amount of improvement with pixel shift.

07-31-2018, 03:14 AM - 3 Likes	#788
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,665 Original Poster	View From the Fishing Pier (pixel shifted)

07-31-2018, 05:37 AM	#789
microlight Site Supporter Join Date: Sep 2011 Location: Hampshire, UK Posts: 2,129	Mo-o-o-oody!

08-02-2018, 06:31 PM - 2 Likes	#790
pinholecam Pentaxian Join Date: Oct 2009 Location: North Photos: Gallery Posts: 4,709	K1+Laowa 12/2.8 pixelshift Full sized file here : IMGP6395-PS.jpg - Google Drive

08-03-2018, 01:28 AM	#791
krazykat Veteran Member Join Date: Aug 2010 Posts: 546	Originally posted by pinholecam K1+Laowa 12/2.8 pixelshift Full sized file here : IMGP6395-PS.jpg - Google Drive Hey pinholecam, How are you finding the Laowa 12mm, both in general and for pixel shift? I'm thinking of getting one... Cheers.

08-03-2018, 01:59 AM - 1 Like	#792
pinholecam Pentaxian Join Date: Oct 2009 Location: North Photos: Gallery Posts: 4,709	Originally posted by krazykat Hey pinholecam, How are you finding the Laowa 12mm, both in general and for pixel shift? I'm thinking of getting one... Cheers. I think its the best UWA prime I have used so far for Pentax. Good flare tolerance (better than A15; IRIX 15; Samyang 14). Better distortion Much better build than the Samyang, on par with the Irix. 'A' lens is always convenient being able to easily shoot with a histogram in LV (I use this a lot for landscapes) Infinity marking is accurate. Smaller than the 14-15mm mentioned above and its a 12mm not 14-15mm Good IQ even with Composition Adjustment at the max Resolution is good, but I find that my Samyang is sharper by a hair. But then, this is 12mm and not 14mm. Pixel shift will always have the advantage of bringing up the fine details in things that would other wise be blurred by the AA filter. Eg. leaves on trees; textures on walls/surfaces; fine/distant lettering. So the Laowa will certainly be good for this. The only thing is that its not as high resolution a lens to bring out the full splendor of pixel shift if I compared it to very sharp lenses like K28/3.5 (at f8) and FA50/1.4 (at f8). Do note, not saying its not sharp, just that a UWA won't be as sharp as a good 28mm or 50mm.

08-03-2018, 05:28 AM - 3 Likes	#793
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,665 Original Poster	Ship at Sunrise (DFA 24-70, K-1 II, Pixel Shift)

08-03-2018, 09:35 PM	#794
microlight Site Supporter Join Date: Sep 2011 Location: Hampshire, UK Posts: 2,129	Superb; motion correction on, probably? 😜 Which software did you process with?

08-04-2018, 02:42 AM	#795
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,665 Original Poster	Originally posted by microlight Superb; motion correction on, probably? 😜 Which software did you process with? I don't use motion correction in the camera, but did in Raw Therapee, which is my processor of choice for pixel shift images.

Pixel Shifted Images

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