Home of Professional Cinematography since 1996

Green In Glass

Published : 2ist September 2003

 

style="margin-top:0;margin-bottom:0;">I have a shoot coming up next week in a modern riverside apartment (opposite the MI6 building in London).

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">We are shooting in one room with huge glass windows that give attractive views over London, that are required. The problem is, that the windows are double-glazed and have loads of green in them. I am not mega-experienced and have not encountered this situation before. I'm thinking of adding half plus green to my HMIs and then using a, say, CC30M on the camera.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">What does anyone else think of that solution? Are my strengths correct?

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Ian Samels

style="margin-top:0;margin-bottom:0;">DP, London

style="margin-top:0;margin-bottom:0;"> 


style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Dear Ian,

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">1) Try & get hold of colour meter. I don't have any in but try one of the major Photographic suppliers hire dept !! or ask lighting company if the Gaffer can be supplied with colour meter...

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">2) That glass seems to have a cyan tint in it (from the outside !). Why not try and open one of those vast windows with a gel swatch in one hand and try and match the colour of the glass by way of elimination against some gels..... then add your CC Magenta.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">3) Move to a unit next door which hasn't got any window in yet !!

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Carey Duffy

style="margin-top:0;margin-bottom:0;">South London Filter Ltd

style="margin-top:0;margin-bottom:0;">http://www.camerafilters.co.uk

style="margin-top:0;margin-bottom:0;"> 


style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Ian Samels wrote :

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">>The problem is, that the windows are double-glazed and have loads >of green in them.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">How do you know how "green" the windows are.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">>I'm thinking of adding half plus green to my HMIs and then using a >say, CC30M on the camera.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Borrow or rent a color temp meter or shoot some Polaroids or find out who made the glass and ask them about their glass -- most manufacturers are very willing to help.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">If you can open a window, tape up some plus green over the clear space an visually compare it to the glass. I seriously doubt that there are any commercial windows green enough to match 1/2 plus green. The people inside the offices would look dreadful.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Brian Heller

style="margin-top:0;margin-bottom:0;">IA 600 DP

style="margin-top:0;margin-bottom:0;"> 


style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Thanks for your help with my green in glass problem, Carey and Brian.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">My gaffer has a colour temperature meter and I also like your suggestion of comparing the windows to a sample of plus green, something obvious that I hadn't thought of!

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Ian Samels

style="margin-top:0;margin-bottom:0;">DP, London

style="margin-top:0;margin-bottom:0;"> 


style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">>My gaffer has a colour temperature meter

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Not all colour temp meters will tell you anything about the green content of light. They just compare red with blue to determine the colour temp.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Dominic Case

style="margin-top:0;margin-bottom:0;">Atlab Australia

style="margin-top:0;margin-bottom:0;"> 


style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Dominic Case wrote:

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">>Not all colour temp meters will tell you anything about the green >content of light. They just compare red with blue to determine the >colour temp.

style="margin-top:0;margin-bottom:0;"> 

style="margin-top:0;margin-bottom:0;">Just be sure it's a 3 color meter, like Minolta's.

style="margin-top:0;margin-bottom:0;">  

style="margin-top:0;margin-bottom:0;">Wade K. Ramsey, DP

style="margin-top:0;margin-bottom:0;">Dept. of Cinema & Video Production

style="margin-top:0;margin-bottom:0;">Bob Jones University

style="margin-top:0;margin-bottom:0;">Greenville, SC 29614

style="margin-top:0;margin-bottom:0;"> 


 

style="margin-top:0;margin-bottom:0;">