Pentax K-m Wildlife lenses

"I use the lens for landscape and wildlife photography. Love the fast quiet autofocus and very sharp image quality."

Fixed aperture The same aperture at all focal lengths

Silent focus motor Silent and fast

Wide aperture f/2.8

	Zoom range	2.9x			Focus motor	Sigma HSM
	Fixed aperture	Yes			Aperture	f/2.8
	Min focal length	70 mm			Weight	1.4 kg
	Image stabilization	None			Max focal length	200 mm

"Extremely well built, weather sealed, fast, and sharp at all F-stops."

Silent focus motor Silent and fast

Wide aperture f/2.8

	Zoom range	1x			Focus motor	Pentax SDM
	Fixed aperture	n/a			Aperture	f/2.8
	Min focal length	200 mm			Weight	0.8 kg
	Image stabilization	None			Max focal length	200 mm

"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."

Silent focus motor Silent and fast

	Zoom range	1x			Focus motor	Pentax SDM
	Fixed aperture	n/a			Aperture	f/4
	Min focal length	300 mm			Weight	1 kg
	Image stabilization	None			Max focal length	300 mm

"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."

Fixed aperture The same aperture at all focal lengths

Silent focus motor Silent and fast

	Zoom range	4.2x			Focus motor	Pentax SDM
	Fixed aperture	Yes			Aperture	f/4
	Min focal length	60 mm			Weight	1.2 kg
	Image stabilization	None			Max focal length	250 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."

More advanced image stabilization Sigma OS

Silent focus motor Silent and fast

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

"It is fast in auto focus and I didn't miss a shot when trying to photograph snow geese!"

Wide aperture f/2.8

	Zoom range	1x			Focus motor	None
	Fixed aperture	n/a			Aperture	f/2.8
	Min focal length	300 mm			Weight	2.4 kg
	Image stabilization	None			Max focal length	300 mm

"Build quality appears to excellent. AF is fast. Pictures are sharp."

Silent focus motor Silent and fast

Great telephoto lens 400 mm

	Zoom range	3.3x			Focus motor	Sigma HSM
	Fixed aperture	No			Aperture	f/4.5
	Min focal length	120 mm			Weight	1.7 kg
	Image stabilization	None			Max focal length	400 mm

"Excellent clarity with good built in features. While the lens could be a little faster, it works in most situations and the price is also excellent. Highly recommended."

Great zoom range 13.9x

More advanced image stabilization Sigma OS

Silent focus motor Silent and fast

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

"The colors are perfect, the sharpen is stupendous, the phenomenal focus and the "DOF" is very very beautiful."

Fixed aperture The same aperture at all focal lengths

Wide aperture f/2.8

	Zoom range	2.9x			Focus motor	None
	Fixed aperture	Yes			Aperture	f/2.8
	Min focal length	70 mm			Weight	1.1 kg
	Image stabilization	None			Max focal length	200 mm