| Pentax K Landscape lenses for less than $500 that have a 100mm or longer focal length | | | | | Max focal length | 135 mm | | | Weight | 405 g | | | | | Zoom range | 7.5x | | | Auto focus | Yes | | | | | Length | 76 mm | | | Fixed aperture | No | | | | | Diameter | 74 mm | | | Fisheye | No | | | | | | | | | | | Max focal length | 270 mm | | | Weight | 453 g | | | | | Zoom range | 15x | | | Auto focus | Yes | | | | | Length | 89 mm | | | Fixed aperture | No | | | | | Diameter | 76 mm | | | Fisheye | No | | | | | | | | | Max focal length | 300 mm | | | Weight | 0.6 kg | | | | | Zoom range | 16.7x | | | Auto focus | Yes | | | | | Length | 102 mm | | | Fixed aperture | No | | | | | Diameter | 79 mm | | | Fisheye | No | | | | | | | | | |