Pentax K Portrait lenses that have a Sigma HSM focus motor and have a f/2.8 or faster aperture

"I have been very satisfied: this lens is absolutely great for low light, or portraiture, requiring large apertures. I shoot with a Pentax k-x, non full-frame, and so the focal length is closer to 85 mm, perfect for portraits."

Wide aperture f/1.4

	Aperture	f/1.4			Weight	0.5 kg
	Focus motor	Sigma HSM			Max focal length	50 mm
	Image stabilization	None			Length	68 mm
	Fixed aperture	n/a			Min focal length	50 mm

"I purchased this product to shoot soccer photos and as a replacement for a 70-300mm f4.5-5.6 lens in order to shoot "under the lights". I have not been dissappointed."

	Aperture	f/2.8			Weight	1.4 kg
	Focus motor	Sigma HSM			Max focal length	200 mm
	Image stabilization	None			Length	184 mm
	Fixed aperture	Yes			Min focal length	70 mm

"Well built, nicely damped MF, fast accurate AF, acceptably sharp wide open, even better at F/4, and really pleasing bokeh."

	Aperture	f/2.8			Weight	0.8 kg
	Focus motor	Sigma HSM			Max focal length	150 mm
	Image stabilization	None			Length	135 mm
	Fixed aperture	Yes			Min focal length	50 mm

"The is a great upgrade from a kit lens. Good focal length range, speed and macro ability."

More advanced image stabilization Sigma OS

	Aperture	f/2.8			Weight	0.5 kg
	Focus motor	Sigma HSM			Max focal length	70 mm
	Image stabilization	Sigma OS			Length	83 mm
	Fixed aperture	No			Min focal length	17 mm