There's a Takumar 105/2.8 metal threaded hood on U.S. EBay right now, but I think the Tak used a 49mm filter.
I wouldn't be surprised if you could use a 135mm or longer hood without vignetting. When I had a K105/2.8, as I recall I had the original hood and it made a handsome combination. On my Kiron 105/2.8K (52mm filter), I use a Nikon HS-8 snap-in metal hood with good results. It's 51mm long and flares out beautifully to 69mm. It was designed for the 85/2 and 105/2.5. I used to shun all nonthreaded hoods, but the Nikon snap-in mount is very simple and secure. The HS-10 is similar but offers a lever for even easier snapping in and out. The Nikon HN-8 threaded hood (52mm filter) was designed for the 105/2.8 and 135/3.5. A list of all Nikon hoods and their specs can be found at http://home.swbell.net/houshr/camera/nikon/lenshoods.html That page says the HS-8 is 30mm long, but 50 or 51mm is correct. These and other Nikon hoods are routinely available on U.S. EBay, where you can see photos. Paul Franklin Stregevsky - 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 .
