Very annoying Vertical lines

**Fontan** · 07-24-2014, 10:22 PM

What are these faint vertical lines??

Supposedly taken by 645D. Interesting to say the least. Pretty annoying too.

https://www.flickr.com/photos/nubimd/14734578294/

**seventhdr** · 07-24-2014, 10:35 PM

I don't see any faint vertical lines.

Reagrds

Chris

Steve.Ledger · 07-24-2014, 10:59 PM

I see the lines.
That's not a photo directly from the camera, it's been severely messed with in post.

**Fontan** · 07-24-2014, 11:00 PM

Really? I see about five of them. The distance between the two is about the width of a car. I have looked at several monitors and I see them. Should I print it???

---------- Post added 07-25-14 at 03:01 PM ----------

Steve, why post processing make them appear?

RollsUp · 07-25-2014, 12:40 AM

I see the lines too.
Have you tried using another memory card?

itshimitis · 07-25-2014, 03:06 AM

Originally posted by Fontan

Really? I see about five of them. The distance between the two is about the width of a car. I have looked at several monitors and I see them. Should I print it???

---------- Post added 07-25-14 at 03:01 PM ----------

Steve, why post processing make them appear?

I can see them too, but they can be accentuated by using the clarity slider in LR or structure in Nik Efex or similar.

**Fontan** · 07-25-2014, 07:12 AM

I printed it - it is hideous and pitiful. Not cool.

Parallax · 07-25-2014, 07:52 AM

Originally posted by Fontan

Steve, why post processing make them appear?

It's possibly the result of jpeg compression of the large, relatively monotone area.

Ryan Tischer · 07-25-2014, 12:37 PM

This may have to do with the sensor, I get a faint line when I shoot at higher ISOs, usually it's directly in the center of the frame...I believe this has been called a split sensor issue that is common with the 645D. You may be able to remove it from future images by running a "pixel mapping" (or called something close to that), which I know gets rid of 'stuck' pixels and sometimes removes the lines. My understanding is that this can come from the fact that the 33x44 sensor is actually two sensors put together. I believe they do the same thing with FF 35mm sensors as well, though I'm unaware of any with that issue.

---------- Post added 07-25-14 at 02:39 PM ----------

After looking at the actual image I'm not sure what that's from...seems the image was heavily processed and I think that may have played a factor.

**jbondo** · 07-25-2014, 12:45 PM

That one's a head-scratcher. It certainly has been majorly processed.
I see that some of the other pics from the set have very strong processing as well: https://www.flickr.com/photos/nubimd/8972914991/in/photostream/

07-24-2014, 10:22 PM	#1
Fontan Site Supporter Join Date: Jan 2011 Location: 5th floor Posts: 1,610	Very annoying Vertical lines What are these faint vertical lines?? Supposedly taken by 645D. Interesting to say the least. Pretty annoying too. https://www.flickr.com/photos/nubimd/14734578294/

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07-24-2014, 10:35 PM	#2
seventhdr Site Supporter Join Date: Mar 2007 Location: Christchurch, New Zealand Photos: Gallery Posts: 1,440	I don't see any faint vertical lines. Reagrds Chris

07-24-2014, 10:59 PM	#3
Steve.Ledger Veteran Member Join Date: Oct 2009 Location: Far North Qld Posts: 3,301	I see the lines. That's not a photo directly from the camera, it's been severely messed with in post.

07-24-2014, 11:00 PM	#4
Fontan Site Supporter Join Date: Jan 2011 Location: 5th floor Posts: 1,610 Original Poster	Really? I see about five of them. The distance between the two is about the width of a car. I have looked at several monitors and I see them. Should I print it??? ---------- Post added 07-25-14 at 03:01 PM ---------- Steve, why post processing make them appear?

07-25-2014, 12:40 AM	#5
RollsUp Veteran Member Join Date: Apr 2008 Location: AK USA Photos: Gallery Posts: 1,766	I see the lines too. Have you tried using another memory card?

07-25-2014, 03:06 AM	#6
itshimitis Pentaxian Join Date: May 2011 Location: All over the place Posts: 3,535	Originally posted by Fontan Really? I see about five of them. The distance between the two is about the width of a car. I have looked at several monitors and I see them. Should I print it??? ---------- Post added 07-25-14 at 03:01 PM ---------- Steve, why post processing make them appear? I can see them too, but they can be accentuated by using the clarity slider in LR or structure in Nik Efex or similar.

07-25-2014, 07:12 AM	#7
Fontan Site Supporter Join Date: Jan 2011 Location: 5th floor Posts: 1,610 Original Poster	I printed it - it is hideous and pitiful. Not cool.

07-25-2014, 07:52 AM	#8
Parallax Senior Moderator Loyal Site Supporter Join Date: Apr 2008 Location: South Dakota Photos: Gallery Posts: 19,332	Originally posted by Fontan Steve, why post processing make them appear? It's possibly the result of jpeg compression of the large, relatively monotone area.

07-25-2014, 12:37 PM	#9
Ryan Tischer Veteran Member Join Date: Feb 2012 Location: Duluth, Minnesota Photos: Albums Posts: 458	This may have to do with the sensor, I get a faint line when I shoot at higher ISOs, usually it's directly in the center of the frame...I believe this has been called a split sensor issue that is common with the 645D. You may be able to remove it from future images by running a "pixel mapping" (or called something close to that), which I know gets rid of 'stuck' pixels and sometimes removes the lines. My understanding is that this can come from the fact that the 33x44 sensor is actually two sensors put together. I believe they do the same thing with FF 35mm sensors as well, though I'm unaware of any with that issue. ---------- Post added 07-25-14 at 02:39 PM ---------- After looking at the actual image I'm not sure what that's from...seems the image was heavily processed and I think that may have played a factor.

07-25-2014, 12:45 PM	#10
jbondo Loyal Site Supportaxian Join Date: Sep 2013 Location: Texas Photos: Albums Posts: 503	That one's a head-scratcher. It certainly has been majorly processed. I see that some of the other pics from the set have very strong processing as well: https://www.flickr.com/photos/nubimd/8972914991/in/photostream/