I don't think you want a fisheye for interiors. I think you'll want rectilinear. Don't get me started again on why Tokina 11-16mm f2.8 is not available for Pentax.
Sigma has a new f3.5 10-20mm if the small increase in speed is that important to you ($200 worth of importance). Some say there is a sharpness price to pay. If you are looking at an f4 lens, the 10-20mm Sigma will gain you a (35mm equiv.) 3mm focal length on the wide end, compared to the Pentax 12-24mm (15mm vs 18mm). The only other lens I'd mention is the Sigma 12-24mm which has the advantage of also covering a full frame 35mm, if you shoot film or want to hedge your bets on a possible Pentax full frame camera in future years. Darren Addy Kearney, NE -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

