Getting some very faint horizontal lines after playing back footage taken with my Son at DVinfo.net

Sean Allen · October 6th, 2003, 08:07 AM

Getting some very faint horizontal lines after playing back footage taken with my Sony TRV-950

Hi,
After using my new Sony TRV-950 for a few weeks ive noticed some faint horizontal lines when I'm recording a light back ground, IE my kid swinging in his swing against a white wall, or white cloud against a light blue sky.
The lines are very faint, and you can only just notice them.
The lines don't go right across the screen, only from where the darker subject meets the lighter background
The problem seems worse if I'm panning the camcorder.

In normal use the camcorder seems to be fine, and no horizontal lines are visible.

Everything is set to auto.

What do you think could be causing this?

Ignacio Rodriguez · October 6th, 2003, 09:15 AM

Hi Sean,

Seems like some sort of analog problem. Have you tried on a different TV or monitor? Are the lines also visible on the LCD and viewfinder?

Sean Allen · October 6th, 2003, 11:40 AM

<<<-- Originally posted by Ignacio Rodriguez : Hi Sean,

Seems like some sort of analog problem. Have you tried on a different TV or monitor? Are the lines also visible on the LCD and viewfinder? -->>>

Hi,

Thanks for reply,

The lines are not visible on the LCD/viewfinder.

I'll try my other TV and see if the problem is still there.

Thanks for the help.

Sean Allen · October 7th, 2003, 05:56 AM

Hi,

The lines seem much better on my old TV than on my newer 32in TV.
You can only just see them on the old TV, and I dont think I would be able to see them if I didnt know they were there.

So is this a fault of my TV or camcorder? and can I do anything about it?

Thanks for any info...........

Zac Stein · October 7th, 2003, 06:12 AM

If the 'new or old' tv is a SONY trinitron you are seeing the famous lines coming off the mask in the tube. Sorry i don't know the exact technical terminology, but Sony tv's and some based on the same technology can show a couple lines through bright flat areas on the screen, horizontal lines that is.

It had to do with the way the tube was aranged and it had physical pieces of metal or something holding it in place, which you are seeing. I just know u can see them on the tv's, not exactly sure of the reasonings for it.

Zac

Sean Allen · October 8th, 2003, 04:16 AM

Hi Zac,

Thanks for reply,

My newer TV is a Philips Match line 32 in & my older TV is a Sony trinitron 28 in.

Yes, it does sound like i'm seeing this-

"If the 'new or old' tv is a SONY trinitron you are seeing the famous lines coming off the mask in the tube. Sorry i don't know the exact technical terminology, but Sony tv's and some based on the same technology can show a couple lines through bright flat areas on the screen, horizontal lines that is."

Thanks for that info, its good to know that my gear is not faulity.

Thanks again

Andre De Clercq · October 8th, 2003, 06:03 AM

Trinitron tube technology uses stretced vertical wire as the "shadow mask". This concept has advantages w.r.t. image brightness but turns out to be very shock and vibration sensitive. The two horizontal wires are woven in the structure in order to damp vibrations. Still one can show this trinitron sensitivity by just tapping with the hand on the CRT faceplate and watch the vibrating brightness and color changes..

October 6th, 2003, 08:07 AM	#1
Sean Allen Regular Crew Join Date: Apr 2003 Location: An English man in the South of Germany..... Posts: 40	Getting some very faint horizontal lines after playing back footage taken with my 950 Getting some very faint horizontal lines after playing back footage taken with my Sony TRV-950 Hi, After using my new Sony TRV-950 for a few weeks ive noticed some faint horizontal lines when I'm recording a light back ground, IE my kid swinging in his swing against a white wall, or white cloud against a light blue sky. The lines are very faint, and you can only just notice them. The lines don't go right across the screen, only from where the darker subject meets the lighter background The problem seems worse if I'm panning the camcorder. In normal use the camcorder seems to be fine, and no horizontal lines are visible. Everything is set to auto. What do you think could be causing this?

October 6th, 2003, 09:15 AM	#2
Ignacio Rodriguez Contributor Join Date: Sep 2003 Location: Santiago, Chile Posts: 932	Hi Sean, Seems like some sort of analog problem. Have you tried on a different TV or monitor? Are the lines also visible on the LCD and viewfinder? __________________ Ignacio Rodríguez in the third world. @micronauta on Twitter. Main hardware: brain, eyes, hands.

October 6th, 2003, 11:40 AM	#3
Sean Allen Regular Crew Join Date: Apr 2003 Location: An English man in the South of Germany..... Posts: 40	<<<-- Originally posted by Ignacio Rodriguez : Hi Sean, Seems like some sort of analog problem. Have you tried on a different TV or monitor? Are the lines also visible on the LCD and viewfinder? -->>> Hi, Thanks for reply, The lines are not visible on the LCD/viewfinder. I'll try my other TV and see if the problem is still there. Thanks for the help.

October 7th, 2003, 05:56 AM	#4
Sean Allen Regular Crew Join Date: Apr 2003 Location: An English man in the South of Germany..... Posts: 40	Hi, The lines seem much better on my old TV than on my newer 32in TV. You can only just see them on the old TV, and I dont think I would be able to see them if I didnt know they were there. So is this a fault of my TV or camcorder? and can I do anything about it? Thanks for any info...........

October 7th, 2003, 06:12 AM	#5
Zac Stein Major Player Join Date: Aug 2002 Location: Melbourne, Australia Posts: 730	If the 'new or old' tv is a SONY trinitron you are seeing the famous lines coming off the mask in the tube. Sorry i don't know the exact technical terminology, but Sony tv's and some based on the same technology can show a couple lines through bright flat areas on the screen, horizontal lines that is. It had to do with the way the tube was aranged and it had physical pieces of metal or something holding it in place, which you are seeing. I just know u can see them on the tv's, not exactly sure of the reasonings for it. Zac

October 8th, 2003, 04:16 AM	#6
Sean Allen Regular Crew Join Date: Apr 2003 Location: An English man in the South of Germany..... Posts: 40	Hi Zac, Thanks for reply, My newer TV is a Philips Match line 32 in & my older TV is a Sony trinitron 28 in. Yes, it does sound like i'm seeing this- "If the 'new or old' tv is a SONY trinitron you are seeing the famous lines coming off the mask in the tube. Sorry i don't know the exact technical terminology, but Sony tv's and some based on the same technology can show a couple lines through bright flat areas on the screen, horizontal lines that is." Thanks for that info, its good to know that my gear is not faulity. Thanks again

October 8th, 2003, 06:03 AM	#7
Andre De Clercq Major Player Join Date: Sep 2002 Location: Belgium Posts: 804	Trinitron tube technology uses stretced vertical wire as the "shadow mask". This concept has advantages w.r.t. image brightness but turns out to be very shock and vibration sensitive. The two horizontal wires are woven in the structure in order to damp vibrations. Still one can show this trinitron sensitivity by just tapping with the hand on the CRT faceplate and watch the vibrating brightness and color changes..