In my opinion (and experience as well) there are much better ways to fit the FD lens to EOS camera.. those converters with optics are not a very good choice.
I decided to go in different direction.. see results below.
http://www.iceinspace.com.au/forum/s...50mm+f1.4+lens
http://www.iceinspace.com.au/forum/s...s+modification
http://www.iceinspace.com.au/forum/s...ht=canon+100mm
Some photos taken with 50mm and 100mm FD lenses are on the link below: (careful, files are 10MB)
http://www.flickr.com/photos/72914767@N03/?saved=1