My understanding is that there is a lens code rather than a description. This way they can put new codes in new lenses. It is up to the firmware of the camera or the raw converter to translate the code into a descriptive name of the lens. So when Sigma, Tokina and Tamron pick a code, they have to pick one that already exists so the camera firmware will recognize something. The real problem comes when there is not a fairly equivalent lens from Pentax.
My 2 cents... -- Bruce Thursday, March 23, 2006, 3:16:20 PM, you wrote: AR> On Mar 23, 2006, at 6:12 PM, Godfrey DiGiorgi wrote: >> As I said: Pentax F, FA, DA, D-FA lenses only. >> Pentax A, A* lenses don't have the ROM data. AR> Yes... but Cristian's Sigma shows up as a Pentax A lens? AR> -Aaron

