Pentax offers two "normal" lenses for the 67 series: a 90mm f/2.8 and a 105mm f/2.4. The 90mm lens is more compact and focuses very close - 2.1 feet. The 105mm is somewhat larger and focuses to 3.3 feet, but offers a very fast f/2.4 aperture, a slightly flatter perspective when photographing people and a somewhat lower price.
Pentax lenses have been developed using the latest in computer-assisted optical design technology. Lens surfaces are treated with Pentax's exclusive Super-Multi-Coating for sharp, high-contrast images
The fastest lens currently available for the 6x7 format