Low-Light Measuring Standard at DVinfo.net

Vladimir Koifman · February 15th, 2004, 06:33 AM

Recently it came to my attention there is a standard EIA-639 that specifically defines the procedure of measuring consumer camcorder or video camera low light performance.
Does anybody have an access to this standard? It was published in 2002, so it's pretty old by now.

Vladimir.

Jeff Donald · February 15th, 2004, 07:46 AM

EIA-639 only applies to NTSC cameras, this includes a black level of 7.5 IRE. Mini DV does not have a black level of 7.5 IRE. Most of the major manufactures have agreed to use it. However, because of the NTSC limitations, the standard is pretty much obsolete. It took too long to get out of committee and get it published.

February 15th, 2004, 06:33 AM	#1
Vladimir Koifman Regular Crew Join Date: May 2003 Location: Israel Posts: 115	Low-Light Measuring Standard Recently it came to my attention there is a standard EIA-639 that specifically defines the procedure of measuring consumer camcorder or video camera low light performance. Does anybody have an access to this standard? It was published in 2002, so it's pretty old by now. Vladimir.

February 15th, 2004, 07:46 AM	#2
Jeff Donald Warden Join Date: Mar 2002 Location: Clearwater, FL Posts: 8,287	EIA-639 only applies to NTSC cameras, this includes a black level of 7.5 IRE. Mini DV does not have a black level of 7.5 IRE. Most of the major manufactures have agreed to use it. However, because of the NTSC limitations, the standard is pretty much obsolete. It took too long to get out of committee and get it published. __________________ Jeff Donald Carpe Diem Search DVinfo.net for quick answers \| Where to Buy? From the best in the business: DVinfo.net sponsors