> Did Pentax make a high performance K mount 2X teleconvertor for > long lenses? I want one to try on my SMCK 1000mm F8.
I just dug out the Pentax user manual for the Rear Converter A's, JCO, and it seems that: 1. The A 2X-S should work OK on the K 1000/8. 2. The A 1.4X-S will show some corner vignetting on the 1000/8. 3. Both the A 1.4X-L and the A 2X-l will work fine on the 1000/8. Since the two "L" models will indeed fit into the lens mount end of the 1000/8, and since these two TC's are specifically designed for many of the long lenses, I'd recommend using either of them over any other TC for the K 1000/8. The "L" TC's really seem to be sweet performers on the long lenses that can accept them (and I am basing that statement on personal experience with both "L" TC's on a few of my own lenses, plus almost universally favorable comments about their use on other long lenses here on the PDML.) The only down side would be the color clash - the battleship-gray of the "L" TC's will look a little funny on the back end of that big black 1000/8 - <g>. Problems, problems... ;-) Fred - 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 .
