Originally posted by Finntax NOW we're talking. I don't think the 15 offers much over the 15-30 except the ability to use filters (which I recognize is not insignificant). Half a stop is negligible these days - the K-1's sensor will EASILY make up for 1/2 a stop, especially considering how large that lens is. It might be even larger than the 15-30!
But 11 is an
outstanding compliment to the 15-30 for ULTRA ultra wide when the niche need arrives. Right now Canon has a monopoly in that end of the spectrum thanks to their highly praised, albeit astronomically priced, 11-24 f/4.
I'd be satisfied with that pairing, and add the Samyang 12mm f/2.8 FE for full frame (apparently only available for K-mount by special order at the moment), and UWA would be 100% covered as far as I'm concerned.
Please IRIX, release the 11 f/4 and then move to tilt shift lenses, starting with one around 18-20mm
-Heie