I never had any problems with mine, but I would usually use it on subjects within 15 feet. Could be that it's not so great at or near infinity. tv -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Pat White Sent: Friday, July 13, 2001 11:40 AM To: [EMAIL PROTECTED] Subject: TC..I am frowning! I used the K T6-2X teleconvertor with my K 45-125 and M 200/4 with very good results. I had previously used a Vivitar TC with terrible results. Perhaps the T6-2X works better with longer lenses than 50mm. Pat White - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .