Pentax K 50mm Low light lenses that have a f/2.8 or faster aperture

"I love love love this new lens, the quality of the photos is spectacular if done in the right lighting. I would absolutely recommend for novices and professionals alike."

Supports autofocus Easier to use

	Aperture	f/1.4			Weight	222 g
	Auto focus	Yes			Diameter	64 mm
	Focus motor	None			Zoom range	1x
	Length	38 mm			Fisheye	No

"First off it's a solid lens, a bit heavy but it takes a beating. Fast focus and quiet. I use it with k20 and I am very happy with the results. A must for low light photography."

Silent focus motor Silent and fast

Supports autofocus Easier to use

	Aperture	f/1.4			Weight	0.5 kg
	Auto focus	Yes			Diameter	85 mm
	Focus motor	Sigma HSM			Zoom range	1x
	Length	68 mm			Fisheye	No

"This is the best lens for Pentax. The combination Pentax K20-D with this lens is better then Nikon or Canon."

	Aperture	f/1.4			Weight	n/a
	Auto focus	No			Diameter	n/a
	Focus motor	None			Zoom range	1x
	Length	n/a			Fisheye	No

"Words really cannot describe the overall satisfaction that this fine lens brings to the user. I highly recommend anyone interested in what quite possibly might be a future legendary piece of glass to give this one a try. Is there anything not good about this lens? Nope. Not a thing. As my title says...my new benchmark."

	Aperture	f/2			Weight	0.5 kg
	Auto focus	No			Diameter	72 mm
	Focus motor	None			Zoom range	1x
	Length	65 mm			Fisheye	No