I've never really understood how to use all the different camera option - just
the basics, position, look_at, up and right (and the occasional foray into
orthographic), so if this question is bleedin' obvious, I humbly apologise.

Is there a way to make the look_at point not the centre of the image? Obviously,
I could acheive a similiar result by cropping the image once it's rendered, but
then I'm wasting time rendering parts of the image I don't intend to keep.

-- 
#macro A(V,B,C,R)#while(B-256)#if(V-128/B>=0)sphere{0,.5translate<C-4R-1,9>
pigment{rgb<1-C/8R/2C/8>}}#local V=V-128/B;#end#local B=B*2;#local C=C+1;#
end#end A(234,1,0,2)A(85,1,0,1)A(81,1,0,0)light_source{-5 1}//Tom Melly

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