Telephoto lenses that have a Pentax SDM focus motor

"The build quality seems top notch, no play in the focus or zoom rings at all, and very smooth action of both." bhphotovideo.com

	Focus motor	Pentax SDM			Aperture	f/2.8
	Zoom range	2.7x			Max focal length	135 mm
	Min focal length	50 mm			Length	137 mm
	Fixed aperture	Yes			Weight	0.7 kg

"I've used this lens now for about 1200 shots of lacrosse games taken in the evening/night under the lights, bright sun and cloudy days. Great resolution when the focus is spot on." bhphotovideo.com

	Focus motor	Pentax SDM			Aperture	f/4
	Zoom range	4.2x			Max focal length	250 mm
	Min focal length	60 mm			Length	168 mm
	Fixed aperture	Yes			Weight	1 kg

"Stellar performer. Very sharp, and works well with in-body stabilisation, which is more noticable/effective at this focal length. Suprisingly good bokeh! This has now become my default lens bushwalking, with a shorter macro and wide prime in the bag. Very versatile thanks to close minimum focus distance. Not as big as imagined. About as heavy as expected (not light, but probably good for this class of lens). Overall GREAT and well worth the investment." bhphotovideo.com

	Focus motor	Pentax SDM			Aperture	f/4
	Zoom range	1x			Max focal length	300 mm
	Min focal length	300 mm			Length	183 mm
	Fixed aperture	n/a			Weight	1.1 kg

"Unbelievable image clarity with zero distortion. Impressive build and quality workmanship." bhphotovideo.com

	Focus motor	Pentax SDM			Aperture	f/2.8
	Zoom range	1x			Max focal length	200 mm
	Min focal length	200 mm			Length	135 mm
	Fixed aperture	n/a			Weight	0.8 kg