Mukesh Chander Posted July 28, 2007 Share Posted July 28, 2007 I want to know about grey card. for what it is used for? And how it is used? Thank You in advance.. Link to comment Share on other sites More sharing options...
Kevin Riley Posted July 28, 2007 Share Posted July 28, 2007 I want to know about grey card. for what it is used for? And how it is used? Thank You in advance.. It's a point of reference. A starting point, as most light meters are calibrated to read "mid tone grey". Try using a spot meter reading the same light source hitting a black then white then grey surface. The end result is 3 different readings for the same amount of light. So which one do use to set your exposure? If the light meter is calibrated to read grey as your exposure value then pointing it at a deep red velvet curtain will tell you how dark that object will appear in a scene exposed for grey. If you get used to working on this Black to White linear line with your spot light meter you can really speed up your lighting process. The next step is color separation - but that's another story. My advice is master the grey card first. Link to comment Share on other sites More sharing options...
bobbioni Posted July 30, 2007 Share Posted July 30, 2007 consider that, if you want to use a spot meter to read a grey card in the set, you could also use an incident light meter. a good idea is read abut the ZONAL SYSTEM a good book "mas alla del sistema de zonas", phil davis Link to comment Share on other sites More sharing options...
bobbioni Posted July 30, 2007 Share Posted July 30, 2007 consider that, if you want to use a spot meter to read a grey card in the set, you could also use an incident light meter. a good idea is read abut the ZONAL SYSTEM a good book "mas alla del sistema de zonas", (phil davis) leticia. Link to comment Share on other sites More sharing options...
Vladislav Simeonov Posted August 7, 2007 Share Posted August 7, 2007 http://www.digitalartsphotography.com/instructions.htm Link to comment Share on other sites More sharing options...
Garrett Vitanza Posted August 7, 2007 Share Posted August 7, 2007 So would you say the basic function of a grey card if to define the value range of the frame using he gray card as a value scale, this enabling a midrange value to better establish the extreme poles of value? Link to comment Share on other sites More sharing options...
David Calson Posted April 7, 2008 Share Posted April 7, 2008 For video work, I use it to help me color correct from shot to shot Link to comment Share on other sites More sharing options...
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