New Z7 feature: Amber color bars

Bruce Ostrout · August 6th, 2008, 08:49 PM

I get this often in fluorescent lighting.

http://www.firstsightpictures.com/Z7amber.wmv

This is on one of my Z7 cams the other is back to Sony for the 3rd time for repair of faulty audio.

What are your thoughts?

John Knight · August 6th, 2008, 10:16 PM

Send that back - it's buggered mate!

Tim Dashwood · August 6th, 2008, 10:17 PM

Is the shutter at 1/60 or 1/48? I have to say this is the first I've seen something like this.

Marcus Marchesseault · August 6th, 2008, 11:42 PM

Someone described this in the Sony V1 forum and I think it's a bad thing. It's possible that it could be a sync issue with fluorescent lights, but I have some doubts. Is it doing this consistently?

Vincent Oliver · August 7th, 2008, 02:20 AM

It is a sync problem with the lights, try a slower shutter speed. I had the same problem with my Canon XL1s, although in that case the colours phased from cool to warm over a 5 second period and repeated the process for the duration of the shot. Using a slower speed cured the problem. (ps I shot in PAL 25 fps, NTSC is 29.97 fps)

Luc De Wandel · August 7th, 2008, 10:47 AM

Fluoresecent lamps do not produce a complete set of light wavelenghts. Their light source being a gas, they send out the particular wavelength of that gas. This means that a coloured strobe effect is normal when recording under fluorescent light. Changing the shutter time might help, but it will never go away completely, I guess. I have terrible colour balance problems when shooting still photography with my Canon cams, for the same reason.

Terry Brown · August 15th, 2008, 06:59 AM

As per the other similar thread, this is caused by the automatic shutter setting, press the shutter button to turn to Manual and set it to 50FPS.

Why there is no standard Shutter Off option I do not know!

Bruce Ostrout · August 16th, 2008, 02:58 PM

Quote:

Originally Posted by Terry Brown

As per the other similar thread, this is caused by the automatic shutter setting, press the shutter button to turn to Manual and set it to 50FPS.

Why there is no standard Shutter Off option I do not know!

Yeah, I was pretty sure that was what was casuing it. I always use manual shutter, which I don't know why there would be an off button for shutter since manual would effectively shut it off.... I most often expose using ND & shutter speed, so I am sure I was out of sync with the flourescents.

August 6th, 2008, 08:49 PM	#1
Bruce Ostrout Regular Crew Join Date: Jun 2006 Location: Jacksonville Fl Posts: 108	New Z7 feature: Amber color bars I get this often in fluorescent lighting. http://www.firstsightpictures.com/Z7amber.wmv This is on one of my Z7 cams the other is back to Sony for the 3rd time for repair of faulty audio. What are your thoughts?

August 6th, 2008, 10:16 PM	#2
John Knight Regular Crew Join Date: May 2008 Location: Christchurch, New Zealand Posts: 152	Send that back - it's buggered mate! __________________ Over 28 years watching TV

August 6th, 2008, 10:17 PM	#3
Tim Dashwood Wrangler Join Date: Aug 2005 Location: Toronto, ON, Canada Posts: 2,647	Is the shutter at 1/60 or 1/48? I have to say this is the first I've seen something like this. __________________ Tim Dashwood

August 15th, 2008, 06:59 AM	#7
Terry Brown Tourist Join Date: Jul 2008 Location: UK Posts: 3	Automatic Shutter As per the other similar thread, this is caused by the automatic shutter setting, press the shutter button to turn to Manual and set it to 50FPS. Why there is no standard Shutter Off option I do not know!

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August 6th, 2008, 11:42 PM	#4
Marcus Marchesseault Trustee Join Date: Nov 2005 Location: Honolulu, HI Posts: 1,635	Someone described this in the Sony V1 forum and I think it's a bad thing. It's possible that it could be a sync issue with fluorescent lights, but I have some doubts. Is it doing this consistently?

August 7th, 2008, 02:20 AM	#5
Vincent Oliver Regular Crew Join Date: Sep 2004 Location: Chislehurst, London Posts: 192	It is a sync problem with the lights, try a slower shutter speed. I had the same problem with my Canon XL1s, although in that case the colours phased from cool to warm over a 5 second period and repeated the process for the duration of the shot. Using a slower speed cured the problem. (ps I shot in PAL 25 fps, NTSC is 29.97 fps)

August 7th, 2008, 10:47 AM	#6
Luc De Wandel Regular Crew Join Date: May 2008 Location: Knokke-Heist, Belgium Posts: 97	Fluoresecent lamps do not produce a complete set of light wavelenghts. Their light source being a gas, they send out the particular wavelength of that gas. This means that a coloured strobe effect is normal when recording under fluorescent light. Changing the shutter time might help, but it will never go away completely, I guess. I have terrible colour balance problems when shooting still photography with my Canon cams, for the same reason.