The second version had the 55mm filter diameter, and the 1:1 adaptor was a tube. The first one had the 49mm filter diameter and it had a 6 elements 2x matched multiplier.
Jeff ----- Original Message ----- From: "Paul Jones" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, July 14, 2002 10:00 PM Subject: Re: Tamron 90mm/2.5 macro > Hi, > > I think my SP90/2.5 Tamron lense has a 55mm filter thread. > > >>. Tamron manufactures their own lenses. > > > I have the SP 90/2.5 Tamron lens with the SP 2x matched >>multiplier. It > takes > > > 49mm filters. Extremely compact. > > Regards, > Paul > - > 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 . - 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 .