The standard zoom lens that's anything but standard - Sigma
Buy - Zeiss 70-200mm T2.9 CZ.2 Compact Zoom Lens - EF Mount with Feet / Imperial Scale (1984-033)
PENTAX-08 WIDE ZOOM The world's smallest, lightest wide-angle zoom lens, with exceptional visual description, and exclusively for use with Q-mount digital lens-interchangeable cameras|RICOH IMAGING