Nikon D3100 50mm Lenses that have a f/1.8 or faster aperture

"Perfect photos at 65 mph at f8 @1/800! This lens lets in lots of light so I can use a fast shutter and get absolutely no blur at highway speeds." bhphotovideo.com

	Aperture	f/1.8			Length	38 mm
	Focus motor	None			Weight	156 g
	Auto focus	Yes			Zoom range	1x
	Diameter	64 mm			Fisheye	No

"Love this lens for those closeup shots. I needed a lens with a high F stop and I love to take portrait shots and it works great for them. The background blurs just like I needed it to!" bhphotovideo.com

	Aperture	f/1.4			Length	43 mm
	Focus motor	None			Weight	230 g
	Auto focus	Yes			Zoom range	1x
	Diameter	64 mm			Fisheye	No

"Clarity and color is amazing in low light situations. Also depth of field is amazingly tight at 1.4. I haven't had problems with the autofocus speed. For the price this lens is amazing." bhphotovideo.com

Silent focus motor Silent and fast

	Aperture	f/1.4			Length	53 mm
	Focus motor	Nikon AF-S			Weight	281 g
	Auto focus	Yes			Zoom range	1x
	Diameter	74 mm			Fisheye	No