Digital BW, The Print

Why not aluminum or formica, per permanent exhibit practice? (as
opposed to trade shows and architects' panels, where foam core makes
sense)

Consensus among exhibit designers and exhibit-oriented photo labs has
forever been that foam core should be used only when the client
accepts that images will be shown, probably damaged, soon discarded... 

When aluminum mount requires greater physical depth (like foam core),
it's standard to mount on a wooden frame.  


> 
> 	Floating an image means a whole new set of rules. If the mount is 
> slightly, almost imperceptively darker than the highlights in the
image, 
> the image will "pop" and seem to float.
>