| Pentax K Lenses made by Pentax for less than $500 that have a generic focus motor and have a 200mm or longer focal length | | | | | Max focal length | 300 mm | | | Weight | 466 g | | | | | Focus motor | Generic motor | | | Diameter | 71 mm | | | | | Zoom range | 5.5x | | | Min focal length | 55 mm | | | | | Length | 112 mm | | | Auto focus | Yes | | | | | | | | | | "This lens is a great fast focusing, sharp lens. I have been using this lens to take bird photos for the last few weeks and it does a marvelous job. The greatest advantage of this zoom is its size. It breaks down to being only a 1/4 inch longer than my 18-55 zoom kit lens. I also like that is allows manual focus with AF on." bhphotovideo.com | Max focal length | 200 mm | | | Weight | 286 g | | | | | Focus motor | Generic motor | | | Diameter | 69 mm | | | | | Zoom range | 4x | | | Min focal length | 50 mm | | | | | Length | 79 mm | | | Auto focus | Yes | | | | | | | |