Hi there, I'll be honest - I'm selling an enlarger on someone's behalf and I know nothing about it!!! I've listed it as for color AND black and white - is this correct? Can you do B&W on a color enlarger? Also, any idea how much it's worth? http://cgi.ebay.com.au/Colour-Photo...ryZ15225QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Any help would be great! Thanks!