HELP! Colour of Black with EX1 at DVinfo.net

Oliver Horn · January 15th, 2010, 11:50 AM

Hi. I seem to be getting odd results with some materials that are 'black' to the naked eye. Sometimes the black comes out as a red/brown. I've tried different WB settings and PPs etc.
Now is the the same issue that affects some DLRs (I work in the digital stills camera market) which is that some infra-red frequencies get by the IR/Low Pass Filter (notably the Leica M8)?
Is the EX1 knows for any IR colour issues?
Photo attached is a frame grab from Vegas vs my Olympus digital stills, both WB'd for the shot and unaltered.
All thoughts and comments gratefully received!
Regards, Oliver.

Vincent Oliver · January 15th, 2010, 12:22 PM

Welcome to the wonderful world of the EX. Do a forum search for IR contamination and you will find enough reading material for the whole of 2010.

In short the Tiffen IR filter will cure the problem.

Serena Steuart · January 17th, 2010, 06:03 AM

This article will save you a lot of reading and bring you up to date. The Tiffen T1 IR filter is available (from Abel Tech, at any rate).

ProVideo Coalition.com: Stunning Good Looks by Art Adams

Oliver Horn · January 17th, 2010, 07:54 AM

As ever, the answers are here from helpful folks!
Thanks.
Oliver.

Oliver Horn · January 19th, 2010, 04:16 PM

Heigh Ho, one Tiffen T1 filter later and I am a happy bunny!
Thanks for the info again!
Oliver.

January 15th, 2010, 11:50 AM	#1
Oliver Horn Regular Crew Join Date: Oct 2004 Location: Cambridge, UK Posts: 57	HELP! Colour of Black with EX1 Hi. I seem to be getting odd results with some materials that are 'black' to the naked eye. Sometimes the black comes out as a red/brown. I've tried different WB settings and PPs etc. Now is the the same issue that affects some DLRs (I work in the digital stills camera market) which is that some infra-red frequencies get by the IR/Low Pass Filter (notably the Leica M8)? Is the EX1 knows for any IR colour issues? Photo attached is a frame grab from Vegas vs my Olympus digital stills, both WB'd for the shot and unaltered. All thoughts and comments gratefully received! Regards, Oliver. Attached Thumbnails

January 15th, 2010, 12:22 PM	#2
Vincent Oliver Trustee Join Date: Sep 2004 Location: Chislehurst, London Posts: 1,724	Welcome to the wonderful world of the EX. Do a forum search for IR contamination and you will find enough reading material for the whole of 2010. In short the Tiffen IR filter will cure the problem. __________________ Eyes are a deaf man’s ears. Ears are a blind man’s eyes

January 17th, 2010, 06:03 AM	#3
Serena Steuart Major Player Join Date: Jun 2006 Location: Studio Alnitak, Melbourne, Victoria, Australia Posts: 640 Images: 3	This article will save you a lot of reading and bring you up to date. The Tiffen T1 IR filter is available (from Abel Tech, at any rate). ProVideo Coalition.com: Stunning Good Looks by Art Adams

January 17th, 2010, 07:54 AM	#4
Oliver Horn Regular Crew Join Date: Oct 2004 Location: Cambridge, UK Posts: 57	As ever, the answers are here from helpful folks! Thanks. Oliver.

January 19th, 2010, 04:16 PM	#5
Oliver Horn Regular Crew Join Date: Oct 2004 Location: Cambridge, UK Posts: 57	Heigh Ho, one Tiffen T1 filter later and I am a happy bunny! Thanks for the info again! Oliver.