Background seperation distance required to turn grey to white

coldpenguin

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A very vague question, with lots of unknowns. I am trying to get stuff together for a home studio.

A grey background is 'recommended' as it can be white, black, or any colour in between if gelled correctly.
However, how much distance would be required at a minimum to get a grey background white, without causing massive spill onto an object in the foreground? I will usually only have a 4mx4m room, so will be somehwat pushed I think. (But, I will have a 8x3m conservatory for occasional use, but obviously lighting a background becomes more complex then).
 
You'd need a couple of meters separation to use a grey background in that way. In a 4m by 4m room I don't think you'd be very successful, especially with a low ceiling.
 
You'd need a couple of meters separation to use a grey background in that way. In a 4m by 4m room I don't think you'd be very successful, especially with a low ceiling.

I agree, you'd just be better of getting a white back ground as well, at least that won't need as much light to keep it white.
 
While grey makes a very versatile background, and in theory it's possible to turn black to white and vice versa, it's a heck of a lot easier to start with the tone you want to end up with.
 
I think what I will have to do is get a white one ( a small one will do to begin with, as the adults won't model for me, so children will have to do), then try playing with a 'still life model' and a grey-card to see whether I really can do what I want with a grey background (if only using the grey card to demonstrate the colour, and the white background to 'replicate' the spill). I wanted to play with gels etc. anyway, but that doesn't really seem to work that well with the white, there is a limit to the deepness of the colour.
Thanks for the replies.
 
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