Within Field | Press "L". Pentax 67, Takumar 400mm f4, Fuji … | Flickr
Sold at Auction: SMC Pentax-M 67 400mm f4 ED(IF) Lens
Pentax 67 400mm f4 SMC Lens – MrCad Online Store
The Pentax Takumar 6x7 400 mm f/ 4 Lens. Specs. MTF Charts. User Reviews.
P400ED - Luminous Landscape
Amazon.com : Pentax HD -D FA*70-200mmF2.8ED DC AW Silver Edition: Limited Quantity Telephoto Zoom Lens for DSLR Cameras feauring State-of-The Art Optical Technology, High-Resolution with All Weather Construction : Electronics
Pentax M42 400mm f5.6 Super Takumar GOOD+ - Seawood Photo