odd looking file

**nitehntr** · 05-10-2020, 05:25 AM

i was shooting yesterday and this one RAW file come out looking odd. it has reddish and greenish artifacts for lack of a better word. i was using pixel shift and none of the shots before or after this had the same things. i saved it as an unprocessed jpeg to upload it. i have never seen anything like this. i was using the K1 and an older film era tamron 17-35 any ideas ??

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**ProfessorBuzz** · 05-10-2020, 05:28 AM - **1 Like**

Maybe the wind moved the branches while the pixel shift was moving the sensor?

**Lowell Goudge** · 05-10-2020, 05:56 AM - **2 Likes**

The red and green is due to chromatic aberration. But the double image is I suspect movement between the shots.

**UncleVanya** · 05-10-2020, 06:26 AM

What lens were you using?

**sergysergy** · 05-10-2020, 06:38 AM

I gave up on pixel shift for those kinds of shots. There are always artifacts in the water, branches, clouds, etc.

**nitehntr** · 05-10-2020, 06:41 AM

Originally posted by UncleVanya

What lens were you using?

older tamron 17-35 film era lens.

---------- Post added 05-10-20 at 09:45 AM ----------

Originally posted by Lowell Goudge

The red and green is due to chromatic aberration. But the double image is I suspect movement between the shots.

i wondered but was puzzled i had never had that happen before with pixel shift. i have used it on waterfalls before with no problems. the shot right after that was fine and it was also pixel shift thats what was puzzling.

stevebrot · 05-10-2020, 08:35 AM

Originally posted by nitehntr

i wondered but was puzzled i had never had that happen before with pixel shift.

Looks like motion artifact from pixel shift to me. If you view the preview JPEG, you will probably find that it lacks the artifact.

Steve

**MossyRocks** · 05-10-2020, 08:45 AM

Originally posted by stevebrot

Looks like motion artifact from pixel shift to me.

I'm thinking the same. If you have RawTherapee you can see what frame has the big movement in it and even then you could still use some of the pixel shift ability and do a median combine or try some other options for handling movement.

**nitehntr** · 05-11-2020, 11:47 AM

Originally posted by stevebrot

Looks like motion artifact from pixel shift to me. If you view the preview JPEG, you will probably find that it lacks the artifact.

Steve

you are right i just learned something

---------- Post added 05-11-20 at 02:47 PM ----------

thanks to everyone for the help i learned something from this

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05-10-2020, 05:28 AM - 1 Like	#2
ProfessorBuzz Loyal Site Supporter Join Date: Feb 2018 Posts: 1,903	Maybe the wind moved the branches while the pixel shift was moving the sensor?

05-10-2020, 05:56 AM - 2 Likes	#3
Lowell Goudge Site Supporter Join Date: Jan 2007 Location: Toronto Photos: Gallery \| Albums Posts: 17,888	The red and green is due to chromatic aberration. But the double image is I suspect movement between the shots.

05-10-2020, 06:26 AM	#4
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,407	What lens were you using?

05-10-2020, 06:38 AM	#5
sergysergy Site Supporter Join Date: Jan 2011 Photos: Gallery Posts: 5,171	I gave up on pixel shift for those kinds of shots. There are always artifacts in the water, branches, clouds, etc.

05-10-2020, 06:41 AM	#6
nitehntr Site Supporter Join Date: Jun 2009 Location: Rivesville West Virginia Photos: Gallery Posts: 238 Original Poster	Originally posted by UncleVanya What lens were you using? older tamron 17-35 film era lens. ---------- Post added 05-10-20 at 09:45 AM ---------- Originally posted by Lowell Goudge The red and green is due to chromatic aberration. But the double image is I suspect movement between the shots. i wondered but was puzzled i had never had that happen before with pixel shift. i have used it on waterfalls before with no problems. the shot right after that was fine and it was also pixel shift thats what was puzzling.

05-10-2020, 08:35 AM	#7
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by nitehntr i wondered but was puzzled i had never had that happen before with pixel shift. Looks like motion artifact from pixel shift to me. If you view the preview JPEG, you will probably find that it lacks the artifact. Steve

05-10-2020, 08:45 AM	#8
MossyRocks Loyal Site Supporter Join Date: Nov 2017 Location: Minnesota Photos: Gallery \| Albums Posts: 2,982	Originally posted by stevebrot Looks like motion artifact from pixel shift to me. I'm thinking the same. If you have RawTherapee you can see what frame has the big movement in it and even then you could still use some of the pixel shift ability and do a median combine or try some other options for handling movement.

05-11-2020, 11:47 AM	#9
nitehntr Site Supporter Join Date: Jun 2009 Location: Rivesville West Virginia Photos: Gallery Posts: 238 Original Poster	Originally posted by stevebrot Looks like motion artifact from pixel shift to me. If you view the preview JPEG, you will probably find that it lacks the artifact. Steve you are right i just learned something ---------- Post added 05-11-20 at 02:47 PM ---------- thanks to everyone for the help i learned something from this