Close up lenses

[John Robertson]

Do any of our undoubtedly knowledgable members know of a site which has a focussing table and depth of field table for use with a 1.5 dioptre close-up lens on a 50mm lens??:angel:

 

[Ranger Copy]

I gather from the lack of replies that there weren't too many professors in the forum in 2007.

p.s. i visited your flickr. link above ... very nice work. very nice.