I recommend Sigma EX 70mm f/2.8 without reservation. I shoot macros frequently and my other toy, Vivitar Series 1 105mm f/2.8, rarely leaves its box.
The Sigma is also a nice portrait lens even on APS-C; plenty sharp wide open... Bulent --------------------------------------------------------------------- http://www.flickr.com/photos/bc_the_path/ http://photo.net/photodb/user?user_id=2226822 http://www.pentaxphotogallery.com/artists/bulentcelasun -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.