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normhead · 11-23-2020, 10:07 AM

Originally posted by acoufap

The result is significantly better than every single shot at the different focus points.

Do you have example photos? Significantly better would imply a visible difference.

And of course, the next question would be "Why not just use pixel shift?"

Pixel shift does each colour channel separately and seems to from my observation ad more than the equivalent of 6 MP of resolution to the image, (on IR the K-1 Pixel shift images as actually clearer than a Nikon D850 image and really cleans up false colour, noise etc..) I'm curious about the kind of changes you get with stacking.

Last edited by normhead; 11-23-2020 at 10:14 AM.

VoiceOfReason · 11-23-2020, 11:05 AM - **13 Likes**

M77 and NGC1055 with my K1ii in crop mode at 1320mm of focal length. It was a total of 4 hours of exposures, 80x 180s at ISO 1600.

**acoufap** · 11-23-2020, 11:34 AM

Originally posted by normhead

Do you have example photos? Significantly better would imply a visible difference.

And of course, the next question would be "Why not just use pixel shift?"

Pixel shift does each colour channel separately and seems to from my observation ad more than the equivalent of 6 MP of resolution to the image, (on IR the K-1 Pixel shift images as actually clearer than a Nikon D850 image and really cleans up false colour, noise etc..) I'm curious about the kind of changes you get with stacking.

Hi Normhead, I have to admit I didn't study each image in absolute detail and light was changing a bit.

I wanted the near foreground (including right lower corner) to be sharp if possible and the farer background too. I guess three images would have been sufficient to get the best stacked DOF. But the slow exposure time may be a general problem in this stack.

Using PSR could have been the best solution - maybe. - I often forget this possibility ...

... and my experiences are mixed with this tech - sometimes astounding better, sometimes not.

Looking at images of 900px size my be hard to discover. So the word significantly better may be a bit oversized.

- The last image of the stack seams not to be far from the stacked version, I guess. Have a look at the images by yourself. As far as I know you are very experienced so you may find some things I didn't realize. Others may scroll ahead.

I send you a PM with links to the full sized last shot and the stacked image. Maybe there's something in for you?!

From near to far ... without adjustments ... in 900px ...

1

2

3

4

5

6

normhead · 11-23-2020, 11:48 AM

Thanks for that, I know how much work these projects can be. Every little bit of info helps.

If I were really serious I guess I'd g out with the K-1 and do a Pixels shift and then a stack and do my own comparison.

**Kevin B123** · 11-23-2020, 12:35 PM - **1 Like**

Originally posted by VoiceOfReason

M77 and NGC1055 with my K1ii in crop mode at 1320mm of focal length. It was a total of 4 hours of exposures, 80x 180s at ISO 1600.

Very impressive work there VOR, thanks for sharing.

5r82 · 11-23-2020, 12:39 PM - **4 Likes**

K 1 + K 50 1.2

**fs999** · 11-23-2020, 12:40 PM - **9 Likes**

FF Mode • 100 ISO • Pentax DA 70mm F2.4 Limited • Metz Flash 52 AF-1 Digital with softbox

FF Mode • 100 ISO • Sigma Art 18-35mm F1.8 DC HSM

FF Mode • 100 ISO • Irix Blackstone 15mm F2.4

**Erictator** · 11-23-2020, 12:41 PM - **4 Likes**

Someone's idea of modern art, or a waste of good stainless steel? You decide.

Pentax K-1 Soligor MF Lens 20.0 mm 1/640 iso100

**gaweidert** · 11-23-2020, 02:20 PM - **2 Likes**

Originally posted by Erictator

Someone's idea of modern art, or a waste of good stainless steel? You decide.

Pentax K-1 Soligor MF Lens 20.0 mm 1/640 iso100

I'm calling it a waste of stainless steel. Mainly because of the brick. It throws the whole sculpture out of whack.

VoiceOfReason · 11-23-2020, 03:00 PM

Originally posted by Kevin B123

Very impressive work there VOR, thanks for sharing.

Thanks! Astrophotography is my main hobby now, even though my cameras aren't made for it they work for it.

**clackers** · 11-23-2020, 05:41 PM - **6 Likes**

The peloton. Pentax K-1, Tamron 70-200mm f2.8. Kinglake is a hilltop town 60 kilometres north east of Melbourne. Simon Gerrans behind the yellow jersey wearer had 33 pro wins in his career (including Liege-Bastogne and Milan-San Remo), once wearing the yellow jersey himself at the Tour de France.

**Bonner04** · 11-23-2020, 06:17 PM - **5 Likes**

American Sycamores On The San Antonio Creek
Ojai, California
Pentax K-1 Mark II Silver, Pentax smc P-F 35-105mm f/4-5.6
f/8 1/60 ISO 800
November 23, 2020

**BigDave** · 11-23-2020, 07:20 PM

fs, very nice macro work. The lighting on the rose is exceptional!

northcoastgreg · 11-24-2020, 05:51 AM - **8 Likes**

Trinidad State Beach, with the FA 31:

**Erictator** · 11-24-2020, 09:37 AM - **1 Like**

Candidate's for focus stacking? Yeah, mostly kidding, that, and I never tried it... and you have to wonder what all those bokeh bubbles would do stacked?

Pentax K-1 Soligor Lens 20.0 mm 1/250 iso100

Pentax K-1 Soligor Lens 20.0 mm 1/200 iso100

11-23-2020, 11:05 AM - 13 Likes	#30752
VoiceOfReason Site Supporter Join Date: Jun 2010 Location: Mishawaka IN area Photos: Albums Posts: 6,124	M77 and NGC1055 with my K1ii in crop mode at 1320mm of focal length. It was a total of 4 hours of exposures, 80x 180s at ISO 1600. Attached Images

11-23-2020, 05:41 PM - 6 Likes	#30761
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	The peloton. Pentax K-1, Tamron 70-200mm f2.8. Kinglake is a hilltop town 60 kilometres north east of Melbourne. Simon Gerrans behind the yellow jersey wearer had 33 pro wins in his career (including Liege-Bastogne and Milan-San Remo), once wearing the yellow jersey himself at the Tour de France. Attached Images

11-23-2020, 06:17 PM - 5 Likes	#30762
Bonner04 Loyal Site Supporter Join Date: Jan 2016 Location: Ventura, CA Photos: Gallery Posts: 685	Sycamores Put On a Fall Show Also American Sycamores On The San Antonio Creek Ojai, California Pentax K-1 Mark II Silver, Pentax smc P-F 35-105mm f/4-5.6 f/8 1/60 ISO 800 November 23, 2020 Attached Images

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11-23-2020, 10:07 AM	#30751
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Originally posted by acoufap The result is significantly better than every single shot at the different focus points. Do you have example photos? Significantly better would imply a visible difference. And of course, the next question would be "Why not just use pixel shift?" Pixel shift does each colour channel separately and seems to from my observation ad more than the equivalent of 6 MP of resolution to the image, (on IR the K-1 Pixel shift images as actually clearer than a Nikon D850 image and really cleans up false colour, noise etc..) I'm curious about the kind of changes you get with stacking. Last edited by normhead; 11-23-2020 at 10:14 AM.

11-23-2020, 11:34 AM	#30753
acoufap Site Supporter Join Date: Jan 2011 Location: Munich, Germany Photos: Gallery \| Albums Posts: 4,191	Originally posted by normhead Do you have example photos? Significantly better would imply a visible difference. And of course, the next question would be "Why not just use pixel shift?" Pixel shift does each colour channel separately and seems to from my observation ad more than the equivalent of 6 MP of resolution to the image, (on IR the K-1 Pixel shift images as actually clearer than a Nikon D850 image and really cleans up false colour, noise etc..) I'm curious about the kind of changes you get with stacking. Hi Normhead, I have to admit I didn't study each image in absolute detail and light was changing a bit. I wanted the near foreground (including right lower corner) to be sharp if possible and the farer background too. I guess three images would have been sufficient to get the best stacked DOF. But the slow exposure time may be a general problem in this stack. Using PSR could have been the best solution - maybe. - I often forget this possibility ... ... and my experiences are mixed with this tech - sometimes astounding better, sometimes not. Looking at images of 900px size my be hard to discover. So the word significantly better may be a bit oversized. - The last image of the stack seams not to be far from the stacked version, I guess. Have a look at the images by yourself. As far as I know you are very experienced so you may find some things I didn't realize. Others may scroll ahead. I send you a PM with links to the full sized last shot and the stacked image. Maybe there's something in for you?! From near to far ... without adjustments ... in 900px ... 1 2 3 4 5 6

11-23-2020, 11:48 AM	#30754
normhead Pentaxian Join Date: Jun 2007 Location: Near Algonquin Park Photos: Gallery \| Albums Posts: 40,451	Thanks for that, I know how much work these projects can be. Every little bit of info helps. If I were really serious I guess I'd g out with the K-1 and do a Pixels shift and then a stack and do my own comparison.

11-23-2020, 12:35 PM - 1 Like	#30755
Kevin B123 Loyal Site Supporter Join Date: Jul 2016 Location: Hampshire Photos: Gallery \| Albums Posts: 3,189	Originally posted by VoiceOfReason M77 and NGC1055 with my K1ii in crop mode at 1320mm of focal length. It was a total of 4 hours of exposures, 80x 180s at ISO 1600. Very impressive work there VOR, thanks for sharing.

11-23-2020, 12:39 PM - 4 Likes	#30756
5r82 Pentaxian Join Date: Jan 2017 Photos: Gallery Posts: 462	K 1 + K 50 1.2

11-23-2020, 12:40 PM - 9 Likes	#30757
fs999 Loyal Site Supporter Join Date: Jul 2008 Location: Luxembourg Photos: Gallery Posts: 8,648	FF Mode • 100 ISO • Pentax DA 70mm F2.4 Limited • Metz Flash 52 AF-1 Digital with softbox FF Mode • 100 ISO • Sigma Art 18-35mm F1.8 DC HSM FF Mode • 100 ISO • Irix Blackstone 15mm F2.4

11-23-2020, 12:41 PM - 4 Likes	#30758
Erictator Site Supporter Join Date: Jul 2011 Photos: Gallery \| Albums Posts: 3,352	Someone's idea of modern art, or a waste of good stainless steel? You decide. Pentax K-1 Soligor MF Lens 20.0 mm 1/640 iso100

11-23-2020, 02:20 PM - 2 Likes	#30759
gaweidert Loyal Site Supporter Join Date: Mar 2012 Location: Rochester, NY Photos: Gallery Posts: 5,327	Originally posted by Erictator Someone's idea of modern art, or a waste of good stainless steel? You decide. Pentax K-1 Soligor MF Lens 20.0 mm 1/640 iso100 I'm calling it a waste of stainless steel. Mainly because of the brick. It throws the whole sculpture out of whack.

11-23-2020, 03:00 PM	#30760
VoiceOfReason Site Supporter Join Date: Jun 2010 Location: Mishawaka IN area Photos: Albums Posts: 6,124	Originally posted by Kevin B123 Very impressive work there VOR, thanks for sharing. Thanks! Astrophotography is my main hobby now, even though my cameras aren't made for it they work for it.

11-23-2020, 07:20 PM	#30763
BigDave Site Supporter Join Date: Sep 2010 Location: Hudson Valley, NY Photos: Gallery \| Albums Posts: 2,626	fs, very nice macro work. The lighting on the rose is exceptional!

11-24-2020, 05:51 AM - 8 Likes	#30764
northcoastgreg Pentaxian Join Date: Feb 2010 Location: Northern Michigan Photos: Gallery \| Albums Posts: 6,176	Trinidad State Beach, with the FA 31:

11-24-2020, 09:37 AM - 1 Like	#30765
Erictator Site Supporter Join Date: Jul 2011 Photos: Gallery \| Albums Posts: 3,352	Candidate's for focus stacking? Yeah, mostly kidding, that, and I never tried it... and you have to wonder what all those bokeh bubbles would do stacked? Pentax K-1 Soligor Lens 20.0 mm 1/250 iso100 Pentax K-1 Soligor Lens 20.0 mm 1/200 iso100

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