Hallo all! According to Boz's K-mount page, PENTAX produces two FA lenses in the range 28-105mm f/4-5.6
One has power zoom option and the other one has IF (Internal Focussing). Boz has also stated that the one with IF is possibly fabricated by Tamron wth genuine PENTAX electroncs and SMC coating. How does the optical performance of the one with IF compares with the one with Power Zoom? Inquisitive. - Ayash. - 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 .
