The Canon MP-E 65mm macro is what they need. It's a 1x-5x dedicated macro unit, and is compatible with the Canon ring flashes.
-Adam Digital Image Studio wrote: > On 14/08/07, Leon Altoff <[EMAIL PROTECTED]> wrote: >> Hi all >> >> I have a friend who has a Canon 300D and I would like to try to help him >> improve his macro photos of really small objects - down to approximately >> 3mm in length. >> >> He currently has a Canon 100 mm f2.8 macro and a Canon ring flash. The >> problem is that the subject - generally live marine animals in about 1cm >> of water - in the resulting images is not large enough to blow up to a >> usable size. >> >> I'm willing to take Canon specific suggestions as well as general macro >> suggestions, but I don't know what is available for Canons in terms of >> macro equipment, and it needs to work with his ring flash. I'll even >> accept the address of another forum dealing with Canon macro photography >> (Is there one?) or suggestion from Cotty on how to graft good Pentax >> optics on to the Canon body. >> >> All help from those who tread the dark path (and I know you are out >> there) will be greatfully accepted. > > Firstly a TC will buy you magnification without reducing working > distance and Canon have a special 5:1 ratio macro lens, I think Cotty > may have one?: > > http://www.vividlight.com/articles/2914.htm > > Cheers, > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

