Eric, I don't have either one, but here are examples taken with the 21mm HD: http://www.pentaxphotogallery.com/photos/gallery/query?camera=&lens=4092 and the SMC 21mm: http://www.pentaxphotogallery.com/photos/gallery/query?camera=&lens=80
And here are the 15mm versions. HD: http://www.pentaxphotogallery.com/photos/gallery/query?camera=&lens=4093 SMC: http://www.pentaxphotogallery.com/photos/gallery/query?camera=&lens=3780 Comparing the 21mm to the 15mm images should give you some idea of the distortion and FOV differences. There is also a grey market Tamron 17-50mm f2.8 that would provide more speed and zoom versatility. It is a well-regarded lens: http://www.amazon.com/Tamron-17-50mm-Aspherical-PENTAX-Digital/dp/B0013DFZNK More reviews for that lens and a non-grey-market price: http://www.bhphotovideo.com/bnh/controller/home?O=NavBar&A=getItemDetail&Q=&sku=550721&is=REG&si=rev#costumerReview -- 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.