| Pentax K Zoom Landscape lenses for less than $400 | | | | | Zoom range | 7.5x | | | Diameter | 74 mm | | | | | Fixed aperture | No | | | Length | 76 mm | | | | | Max focal length | 135 mm | | | Weight | 405 g | | | | | Aperture | f/3.5 | | | Min focal length | 18 mm | | | | | | | | | | | Zoom range | 2.8x | | | Diameter | 71 mm | | | | | Fixed aperture | No | | | Length | 41 mm | | | | | Max focal length | 50 mm | | | Weight | 158 g | | | | | Aperture | f/4 | | | Min focal length | 18 mm | | | | | | | | "The lens is well-made, the SDM focusing is fast and quiet (used on a Pentax K20D), images are sharp throughout the zoom range, the bokeh is pleasing, and the lens is weatherproof" bhphotovideo.com | Fixed aperture | | The same maximum aperture at all focal lengths | | | Zoom range | 4.1x | | | Diameter | 76 mm | | | | | Fixed aperture | Yes | | | Length | 94 mm | | | | | Max focal length | 70 mm | | | Weight | 485 g | | | | | Aperture | f/4 | | | Min focal length | 17 mm | | | | | | | | | | "This lens is workhorses, very nice contrast, fast autofocus, WR is very nice, just like water proof, I took alot pictures during raining, white water rafting, biking." bhphotovideo.com | Zoom range | 3.1x | | | Diameter | 69 mm | | | | | Fixed aperture | No | | | Length | 69 mm | | | | | Max focal length | 55 mm | | | Weight | 230 g | | | | | Aperture | f/3.5 | | | Min focal length | 18 mm | | | | | | | | "This lens is absolutely great for scenery and landscape. I did a lot of research for a good wide-angle lens and for the price this lens was definitely my favorite." bhphotovideo.com | Fixed aperture | | The same maximum aperture at all focal lengths | | | Zoom range | 2x | | | Diameter | 86 mm | | | | | Fixed aperture | Yes | | | Length | 89 mm | | | | | Max focal length | 20 mm | | | Weight | 0.5 kg | | | | | Aperture | f/3.5 | | | Min focal length | 10 mm | | | | | | | | | | | Fixed aperture | | The same maximum aperture at all focal lengths | | | Zoom range | 2.9x | | | Diameter | 84 mm | | | | | Fixed aperture | Yes | | | Length | 91 mm | | | | | Max focal length | 50 mm | | | Weight | 0.6 kg | | | | | Aperture | f/2.8 | | | Min focal length | 17 mm | | | | | | | | | | Great telephoto lens | | 300 mm | | | Zoom range | 16.7x | | | Diameter | 79 mm | | | | | Fixed aperture | No | | | Length | 102 mm | | | | | Max focal length | 300 mm | | | Weight | 0.6 kg | | | | | Aperture | f/3.5 | | | Min focal length | 18 mm | | | | | | | | | | "The quality of the lens feels great and you come away feeling like you're getting a lot for your money. The ability to lock it into 17mm is handy for transportation and twisting it onto your body. The AF is audible but not loud enough to make it seem cheap." bhphotovideo.com | Fixed aperture | | The same maximum aperture at all focal lengths | | | Zoom range | 2.9x | | | Diameter | 74 mm | | | | | Fixed aperture | Yes | | | Length | 81 mm | | | | | Max focal length | 50 mm | | | Weight | 430 g | | | | | Aperture | f/2.8 | | | Min focal length | 17 mm | | | | | | | |