EX1R EVF potential burn-in? at DVinfo.net

Jack Zhang · June 9th, 2013, 03:24 AM

So, I recorded over an entire 32GB card with the lens covered for reliability testing, but the EVF info was present during the entire 2 hours or more that I left the camera running. This causes extreme contrast between the EVF info and the black of the covered lens, so I get either image retention or burn-in.

I'm pointing my camera at analog static with no EVF info present to try to fix this. Anyone else notice image retention or burn in with their LCoS EX1R, 100, 150, 160 or 200 EVFs? (Heck, the NX5 may have the same EVF too)

Doug Jensen · June 9th, 2013, 02:07 PM

I've never seen a burn-in problem on the LCD, but I question your method of testing the card for reliability. Simply recording a capped-lens, color bars, or anything with no action or motion does nothing to stress-test the card. You should aim the camera at a live TV sports broadcast and let the codec chew on that to see if the card can keep up with a lot of action -- preferably with S&Q 60 fps turned on.

Jack Zhang · June 9th, 2013, 03:27 PM

Ah, S&Q 60fps with analog static noise should work. And it's the EVF at the back, not the LCD. 60 at 24fps failed at 9 minutes with a card I was using, so that's no longer reliable.

Have left the static running for 8 hours on my EVF, the image retention is slowly going away. It is not burn in.

June 9th, 2013, 03:24 AM	#1
Jack Zhang Inner Circle Join Date: May 2005 Location: Burnaby, BC, Canada Posts: 3,053	EX1R EVF potential image retention? So, I recorded over an entire 32GB card with the lens covered for reliability testing, but the EVF info was present during the entire 2 hours or more that I left the camera running. This causes extreme contrast between the EVF info and the black of the covered lens, so I get either image retention or burn-in. I'm pointing my camera at analog static with no EVF info present to try to fix this. Anyone else notice image retention or burn in with their LCoS EX1R, 100, 150, 160 or 200 EVFs? (Heck, the NX5 may have the same EVF too) Last edited by Jack Zhang; June 9th, 2013 at 03:27 PM.

June 9th, 2013, 02:07 PM	#2
Doug Jensen Vortex Media Join Date: Jan 2009 Location: Florida Posts: 3,442	Re: EX1R EVF potential burn-in? I've never seen a burn-in problem on the LCD, but I question your method of testing the card for reliability. Simply recording a capped-lens, color bars, or anything with no action or motion does nothing to stress-test the card. You should aim the camera at a live TV sports broadcast and let the codec chew on that to see if the card can keep up with a lot of action -- preferably with S&Q 60 fps turned on. __________________ Vortex Media http://www.vortexmedia.com/ Sony FS7, F55, and XDCAM training videos, field guides, and other production tools

June 9th, 2013, 03:27 PM	#3
Jack Zhang Inner Circle Join Date: May 2005 Location: Burnaby, BC, Canada Posts: 3,053	Re: EX1R EVF potential burn-in? Ah, S&Q 60fps with analog static noise should work. And it's the EVF at the back, not the LCD. 60 at 24fps failed at 9 minutes with a card I was using, so that's no longer reliable. Have left the static running for 8 hours on my EVF, the image retention is slowly going away. It is not burn in.