> Come to think of it, with the cost of larger filters and hoods, maybe I > should just get a 1.4XL-A teleconverter and use it with my > 400/5.6 PKA and > 200/2.5 SMC.
All else being equal, a prime plus TC will never match a prime that is already the correct focal length. For years most of the major Camera companies didnt even sell TCs because of the known quality losses. Most telephotos already have a lens group near the rear of the lens similar to a TC. Adding another TC is pushing your luck... > How much brightness does a 1.4 TC cost you: half a stop? > 1 stop. BTW, The SMC Takumar 300mm F4 is an excellent lens and it does have a tripod ring. They sell for less than $300 now. Probably not as good as a modern design with ED glass when used wide open but stopped down a little to F8 or so the results are great. JCO - 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 .
