| | Pentax K Lenses made by Tamron that have a 200mm or longer focal length | | |  | "Great lens, very durable and inexpensive! You can't beat this with a stick! Don't hesitate to buy!" bhphotovideo.com | | Max focal length | 300 mm | | | Aperture | f/4 | | | | | | | Zoom range | 4.3x | | | Weight | 435 g | | | | | | | Fixed aperture | No | | | Diameter | 76 mm | | | | | | | Length | 117 mm | | | Min focal length | 70 mm | | | | | | | | | | |  | "The variable zoom is so versatile, it has become the only lens we carry." bhphotovideo.com | | Max focal length | 200 mm | | | Aperture | f/3.5 | | | | | | | Zoom range | 11.1x | | | Weight | 398 g | | | | | | | Fixed aperture | No | | | Diameter | 74 mm | | | | | | | Length | 84 mm | | | Min focal length | 18 mm | | | | | | | |  | "use with Pentax K1000 Super D and it works well" bhphotovideo.com | | Max focal length | 300 mm | | | Aperture | f/3.5 | | | | | | | Zoom range | 10.7x | | | Weight | 420 g | | | | | | | Fixed aperture | No | | | Diameter | 74 mm | | | | | | | Length | 84 mm | | | Min focal length | 28 mm | | | | | | | | | | |  | "The colors are perfect, the sharpen is stupendous, the phenomenal focus and the DOF is very very beautiful." bhphotovideo.com | | Fixed aperture | | | The same maximum aperture at all focal lengths | | | | Max focal length | 200 mm | | | Aperture | f/2.8 | | | | | | | Zoom range | 2.9x | | | Weight | 1.1 kg | | | | | | | Fixed aperture | Yes | | | Diameter | 89 mm | | | | | | | Length | 193 mm | | | Min focal length | 70 mm | | | | | | | | |
