David, No personal experience, but it looks like quite a bargain at $199 if it is this lens: http://www.flickriver.com/lenses/sigma/sigma70300mmf45.6dgmacro/
I'd make sure that you were getting the APO lens. They make a similar non-APO http://www.bhphotovideo.com/c/search?Ntt=Sigma+70-300mm+f%2F4-5.6+DG+Macro+Pentax&N=0&InitialSearch=yes&sts=ma Owner Reviews: http://www.amazon.com/Sigma-70-300mm-Telephoto-Samsung-Cameras/product-reviews/B000ANGXW6/ Owner Reviews at B&H: http://www.bhphotovideo.com/c/product/396833-REG/Sigma_508109_70_300mm_f_4_5_6_APO_DG.html -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
