Pentax K Lenses for less than $300 that have a focus motor and have a f/4 or faster aperture

"Great option for taking casual pictures of family and friends or for low-key urban excursions." bhphotovideo.com

	Aperture	f/2.8			Zoom range	1x
	Focus motor	Generic motor			Max focal length	40 mm
	Fisheye	No			Diameter	64 mm
	Auto focus	Yes			Length	15 mm

"I am very pleased with this lens so far. It is built well and shots are very clear. " bhphotovideo.com

Fisheye Extremely wide circular images

	Aperture	f/3.5			Zoom range	1.7x
	Focus motor	Generic motor			Max focal length	17 mm
	Fisheye	Yes			Diameter	69 mm
	Auto focus	Yes			Length	71 mm

"For landscape photos during the winter months and in wet or dusty conditions, it is a great lens." bhphotovideo.com

	Aperture	f/3.5			Zoom range	3.1x
	Focus motor	Generic motor			Max focal length	55 mm
	Fisheye	No			Diameter	69 mm
	Auto focus	Yes			Length	69 mm

"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

Great telephoto lens 200 mm

Great zoom range 4x

	Aperture	f/4			Zoom range	4x
	Focus motor	Generic motor			Max focal length	200 mm
	Fisheye	No			Diameter	69 mm
	Auto focus	Yes			Length	79 mm