Pentax K-r Zoom Lenses that have Sigma OS image stabilization

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

	Image stabilization	Sigma OS			Weight	0.5 kg
	Zoom range	4.1x			Focus motor	Sigma HSM
	Fixed aperture	No			Aperture	f/2.8
	Max focal length	70 mm			Min focal length	17 mm

"This is a solid lens. I'm not 100% convinced the OS in this lens is an improvement over the body image stabilization, but it seems to be roughly equivalent."

	Image stabilization	Sigma OS			Weight	395 g
	Zoom range	2.8x			Focus motor	Sigma HSM
	Fixed aperture	No			Aperture	f/2.8
	Max focal length	50 mm			Min focal length	18 mm

"I am shooting through this lens, and I am loving the results. I really haven't had any complaints about it and it has performed as described."

	Image stabilization	Sigma OS			Weight	n/a
	Zoom range	4x			Focus motor	Sigma HSM
	Fixed aperture	No			Aperture	f/4
	Max focal length	200 mm			Min focal length	50 mm

"I gave it 5 stars based on what I would expect from a zoom lens and the image quality is really quite impressive for a super zoom; better than anything else of this type that I've seen. It is a good, solid, well made lens and I couldn't be happier with it."

Great zoom range 13.9x

	Image stabilization	Sigma OS			Weight	0.6 kg
	Zoom range	13.9x			Focus motor	Sigma HSM
	Fixed aperture	No			Aperture	f/3.5
	Max focal length	250 mm			Min focal length	18 mm

"I like to work with it for anxious, aloof or dangerous animal takings since it allows prudent distances. It is a good complement for an objective 18-70 or 28-70"

	Image stabilization	Sigma OS			Weight	0.6 kg
	Zoom range	4.3x			Focus motor	None
	Fixed aperture	No			Aperture	f/4
	Max focal length	300 mm			Min focal length	70 mm