if its a hard qn and its not easy to get the ans,i mean in financial sense no one will help u...
if u have a qn to ask, y not help if it doesnt cost u a cent.
like eg: what does it mean by optimal lighting ratio. it says 1:4, does tat mean it is 4 stops underexposed? soemthing that sounds perhaps too techy and needs translation will get help from the people.
yet again if u ask, what are the specs of canon 5dmk2 camera?
i'll throw u this
http://tinyurl.com/2waqdp4