Rear LCD in Liveview

Rico · 07-04-2018, 07:43 AM

I noticed by chance something with my rear LCD when in Liveview on my K-1 that was upgraded to the MKII. With the lens cap on in Liveview the screen has horizontal grey banding with a thinner light grey band separating them. There is about 16 bands total. Does any one else see this as well? I searched the forum and internet without getting any returns of anything similar. I don't remember seeing this behavior in the past but I don't think I ever had the camera in Liveview with the lens cap on before recently.

TIA.

MJKoski · 07-04-2018, 07:52 AM

Sounds like the banding discussed in white dot thread. My 1st mk-1 had banding which was corrected with 2nd sensor calibration attempt. If so...then the upgrade process is missing some fine tuning part.

Putting on lenscap cranks the exposure and sensitivity for the camera to see something. My banding tests were ISO51200+ exposures & 30 seconds in totally dark condition which gave dim band in top of the dark frame and it was easy to see.

Can you take such dark frame? Remember - total darkness. Put whole camera in light sealed container.

**othar** · 07-04-2018, 07:55 AM

I only have a K-3 so just guessing here:
Maybe you see some lightleakage through the optical viewfinder, try the same again with the OVF covered too.

**Mikesul** · 07-04-2018, 08:41 AM

I have a factory K-1ii and the live view with lens cap on is just random noise. No banding even when I set to +2. When set to -1 it is smooth black. My silver K-1 is similar to what you describe. K-3ii smooth black.

Rico · 07-04-2018, 10:17 AM

Thanks for the replies.

MJKoski the banding I am seeing is on the rear LCD. I haven't seen or tested for the banding in actual files. The rear LCD the banding is more pronounced at ISO100. As you raise the ISO it is still there but not as evident.

othar I tried covering the OVF with the same results.

Mikesul it would seem that the original K-1 exhibits this behavior with the LCD screen. Mine is the original K-1 albeit upgraded.

Here is what it looks like:

MJKoski · 07-04-2018, 11:00 AM

Very weird. Please try darkframe at ridiculously high ISO and long exposure as explained above.

**Mikesul** · 07-04-2018, 11:06 AM

Originally posted by Rico

Thanks for the replies.

MJKoski the banding I am seeing is on the rear LCD. I haven't seen or tested for the banding in actual files. The rear LCD the banding is more pronounced at ISO100. As you raise the ISO it is still there but not as evident.

othar I tried covering the OVF with the same results.

Mikesul it would seem that the original K-1 exhibits this behavior with the LCD screen. Mine is the original K-1 albeit upgraded.

Here is what it looks like:

That is what i see also. It never shows up in my pictures so i am not concerned for now.

---------- Post added 07-04-18 at 11:09 AM ----------

It goes away when the gain is lowered on the lcd so it may be only be an artifact of the lcd. It is not there on my K-3ii.

Rico · 07-04-2018, 11:25 AM - **1 Like**

Mikesul it was a concern when I first noticed but it looks like a common behavior for the K-1.

Here is a 30 sec exposure with the cap on and the camera under a dark cover. I also pushed file 2 stops in pp:

What ever is causing the banding on the LCD doesn't seem to show up in the files. This has been my experience in general. I haven't noticed such banding in files either now or before having the upgrade done. The only place banding does show up is using Liveview and the electronic shutter under certain lighting conditions.

funktionsfrei · 07-04-2018, 11:58 AM

Originally posted by Rico

What ever is causing the banding on the LCD

Maybe it's a scaling artifact.

What happens when you zoom in?

MJKoski · 07-04-2018, 12:19 PM

Dark frame looks nice. Nothing to worry I guess.

**c.perkins** · 07-04-2018, 12:32 PM

I just tested out my K1.
Went from ISO 100 to 1600.
In LV for all the above it is a black screen.
Hit the OK button for full zoom and have a black screen and if you look real good you can see what I describe as a swarm of grey/white gnats flying in swarm style.
They are very dim, you got to look.
No banding through.

Clarence

**Mikesul** · 07-04-2018, 01:18 PM

Originally posted by Rico

Mikesul it was a concern when I first noticed but it looks like a common behavior for the K-1.

Here is a 30 sec exposure with the cap on and the camera under a dark cover. I also pushed file 2 stops in pp:

What ever is causing the banding on the LCD doesn't seem to show up in the files. This has been my experience in general. I haven't noticed such banding in files either now or before having the upgrade done. The only place banding does show up is using Liveview and the electronic shutter under certain lighting conditions.

I agree. Actually I was never really concerned just responding to other posters with data. Your test was what I was going to do next but now I do not have to. Thanks!

Rico · 07-04-2018, 02:41 PM

Originally posted by Mikesul

I agree. Actually I was never really concerned just responding to other posters with data. Your test was what I was going to do next but now I do not have to. Thanks!

Mikesul I figured I started the thread I should post an image. :^)

---------- Post added 07-04-18 at 05:41 PM ----------

Originally posted by MJKoski

Dark frame looks nice. Nothing to worry I guess.

Agreed.

---------- Post added 07-04-18 at 05:44 PM ----------

Originally posted by c.perkins

I just tested out my K1.
Went from ISO 100 to 1600.
In LV for all the above it is a black screen.
Hit the OK button for full zoom and have a black screen and if you look real good you can see what I describe as a swarm of grey/white gnats flying in swarm style.
They are very dim, you got to look.
No banding through.

Clarence

c.perkins this suggest it is not the same for every K-1. When did you pick up your K-1? Mine is from July, 2016.

**c.perkins** · 07-04-2018, 02:46 PM

Rico;

Two months ago from Adorama.

Clarence

Rico · 07-04-2018, 02:49 PM

Originally posted by funktionsfrei

Maybe it's a scaling artifact.

What happens when you zoom in?

funktionsfrei when I zoom in there is no banding present straight from 2x zoom.

I switched the screen between 50hz and 60hz which didn't make a difference for the full view banding I see.

---------- Post added 07-04-18 at 05:52 PM ----------

Originally posted by c.perkins

Rico;

Two months ago from Adorama.

Clarence

c.perkins this may be the reason you are not seeing it having a more recent model.

07-04-2018, 07:43 AM	#1
Rico Veteran Member Join Date: Mar 2007 Posts: 1,204	Rear LCD in Liveview I noticed by chance something with my rear LCD when in Liveview on my K-1 that was upgraded to the MKII. With the lens cap on in Liveview the screen has horizontal grey banding with a thinner light grey band separating them. There is about 16 bands total. Does any one else see this as well? I searched the forum and internet without getting any returns of anything similar. I don't remember seeing this behavior in the past but I don't think I ever had the camera in Liveview with the lens cap on before recently. TIA.

07-04-2018, 07:55 AM	#3
othar Site Supporter Join Date: May 2014 Location: Linz Photos: Albums Posts: 3,098	I only have a K-3 so just guessing here: Maybe you see some lightleakage through the optical viewfinder, try the same again with the OVF covered too. Last edited by othar; 07-04-2018 at 09:24 AM.

07-04-2018, 11:25 AM - 1 Like	#8
Rico Veteran Member Join Date: Mar 2007 Posts: 1,204 Original Poster	Mikesul it was a concern when I first noticed but it looks like a common behavior for the K-1. Here is a 30 sec exposure with the cap on and the camera under a dark cover. I also pushed file 2 stops in pp: What ever is causing the banding on the LCD doesn't seem to show up in the files. This has been my experience in general. I haven't noticed such banding in files either now or before having the upgrade done. The only place banding does show up is using Liveview and the electronic shutter under certain lighting conditions. Last edited by Rico; 07-04-2018 at 11:39 AM.

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07-04-2018, 07:52 AM	#2
MJKoski Veteran Member Join Date: Aug 2016 Posts: 1,784	Sounds like the banding discussed in white dot thread. My 1st mk-1 had banding which was corrected with 2nd sensor calibration attempt. If so...then the upgrade process is missing some fine tuning part. Putting on lenscap cranks the exposure and sensitivity for the camera to see something. My banding tests were ISO51200+ exposures & 30 seconds in totally dark condition which gave dim band in top of the dark frame and it was easy to see. Can you take such dark frame? Remember - total darkness. Put whole camera in light sealed container.

07-04-2018, 08:41 AM	#4
Mikesul Loyal Site Supporter Join Date: Sep 2009 Location: Phoenix, AZ Posts: 7,594	I have a factory K-1ii and the live view with lens cap on is just random noise. No banding even when I set to +2. When set to -1 it is smooth black. My silver K-1 is similar to what you describe. K-3ii smooth black.

07-04-2018, 10:17 AM	#5
Rico Veteran Member Join Date: Mar 2007 Posts: 1,204 Original Poster	Thanks for the replies. MJKoski the banding I am seeing is on the rear LCD. I haven't seen or tested for the banding in actual files. The rear LCD the banding is more pronounced at ISO100. As you raise the ISO it is still there but not as evident. othar I tried covering the OVF with the same results. Mikesul it would seem that the original K-1 exhibits this behavior with the LCD screen. Mine is the original K-1 albeit upgraded. Here is what it looks like:

07-04-2018, 11:00 AM	#6
MJKoski Veteran Member Join Date: Aug 2016 Posts: 1,784	Very weird. Please try darkframe at ridiculously high ISO and long exposure as explained above.

07-04-2018, 11:06 AM	#7
Mikesul Loyal Site Supporter Join Date: Sep 2009 Location: Phoenix, AZ Posts: 7,594	Originally posted by Rico Thanks for the replies. MJKoski the banding I am seeing is on the rear LCD. I haven't seen or tested for the banding in actual files. The rear LCD the banding is more pronounced at ISO100. As you raise the ISO it is still there but not as evident. othar I tried covering the OVF with the same results. Mikesul it would seem that the original K-1 exhibits this behavior with the LCD screen. Mine is the original K-1 albeit upgraded. Here is what it looks like: That is what i see also. It never shows up in my pictures so i am not concerned for now. ---------- Post added 07-04-18 at 11:09 AM ---------- It goes away when the gain is lowered on the lcd so it may be only be an artifact of the lcd. It is not there on my K-3ii.

07-04-2018, 11:58 AM	#9
funktionsfrei Senior Member Join Date: Feb 2012 Posts: 183	Originally posted by Rico What ever is causing the banding on the LCD Maybe it's a scaling artifact. What happens when you zoom in?

07-04-2018, 12:19 PM	#10
MJKoski Veteran Member Join Date: Aug 2016 Posts: 1,784	Dark frame looks nice. Nothing to worry I guess.

07-04-2018, 12:32 PM	#11
c.perkins Loyal Site Supporter Join Date: Jun 2017 Location: New Lisbon, WI. Photos: Gallery \| Albums Posts: 515	I just tested out my K1. Went from ISO 100 to 1600. In LV for all the above it is a black screen. Hit the OK button for full zoom and have a black screen and if you look real good you can see what I describe as a swarm of grey/white gnats flying in swarm style. They are very dim, you got to look. No banding through. Clarence

07-04-2018, 01:18 PM	#12
Mikesul Loyal Site Supporter Join Date: Sep 2009 Location: Phoenix, AZ Posts: 7,594	Originally posted by Rico Mikesul it was a concern when I first noticed but it looks like a common behavior for the K-1. Here is a 30 sec exposure with the cap on and the camera under a dark cover. I also pushed file 2 stops in pp: What ever is causing the banding on the LCD doesn't seem to show up in the files. This has been my experience in general. I haven't noticed such banding in files either now or before having the upgrade done. The only place banding does show up is using Liveview and the electronic shutter under certain lighting conditions. I agree. Actually I was never really concerned just responding to other posters with data. Your test was what I was going to do next but now I do not have to. Thanks!

07-04-2018, 02:41 PM	#13
Rico Veteran Member Join Date: Mar 2007 Posts: 1,204 Original Poster	Originally posted by Mikesul I agree. Actually I was never really concerned just responding to other posters with data. Your test was what I was going to do next but now I do not have to. Thanks! Mikesul I figured I started the thread I should post an image. :^) ---------- Post added 07-04-18 at 05:41 PM ---------- Originally posted by MJKoski Dark frame looks nice. Nothing to worry I guess. Agreed. ---------- Post added 07-04-18 at 05:44 PM ---------- Originally posted by c.perkins I just tested out my K1. Went from ISO 100 to 1600. In LV for all the above it is a black screen. Hit the OK button for full zoom and have a black screen and if you look real good you can see what I describe as a swarm of grey/white gnats flying in swarm style. They are very dim, you got to look. No banding through. Clarence c.perkins this suggest it is not the same for every K-1. When did you pick up your K-1? Mine is from July, 2016.

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07-04-2018, 02:46 PM	#14
c.perkins Loyal Site Supporter Join Date: Jun 2017 Location: New Lisbon, WI. Photos: Gallery \| Albums Posts: 515	Rico; Two months ago from Adorama. Clarence

07-04-2018, 02:49 PM	#15
Rico Veteran Member Join Date: Mar 2007 Posts: 1,204 Original Poster	Originally posted by funktionsfrei Maybe it's a scaling artifact. What happens when you zoom in? funktionsfrei when I zoom in there is no banding present straight from 2x zoom. I switched the screen between 50hz and 60hz which didn't make a difference for the full view banding I see. ---------- Post added 07-04-18 at 05:52 PM ---------- Originally posted by c.perkins Rico; Two months ago from Adorama. Clarence c.perkins this may be the reason you are not seeing it having a more recent model.