Nikon D3100 Fisheye lenses that have a f/2.8 or faster aperture

"It focuses very fast, and very quiet. Sigma did something right with the HSM (not like my other Sigma lens that hunts to focus and is pretty noisy). The images come out very sharp prior to any post-processing and colors seem very accurate. All in all, I love this lens. Worth every penny!"

Silent focus motor Silent and fast

	Aperture	f/2.8			Diameter	76 mm
	Focus motor	Sigma HSM			Min focal length	10 mm
	Weight	n/a			Max focal length	10 mm
	Length	83 mm			Auto focus	Yes

"The Fisheye effect of this lens is great, almost a 180° rectangular view. You can not put a filter on the front of this, it has a gel filter holder in the rear."

	Aperture	f/2.8			Diameter	63 mm
	Focus motor	None			Min focal length	10.5 mm
	Weight	306 g			Max focal length	10.5 mm
	Length	63 mm			Auto focus	Yes

"The images are stunning and sharp. This is the only circular fisheye for less than a full frame sensor."

Silent focus motor Silent and fast

	Aperture	f/2.8			Diameter	76 mm
	Focus motor	Sigma HSM			Min focal length	4.5 mm
	Weight	470 g			Max focal length	4.5 mm
	Length	78 mm			Auto focus	Yes

"Small, light and quick focus. Unique look and definable fisheye effect."

	Aperture	f/2.8			Diameter	64 mm
	Focus motor	None			Min focal length	16 mm
	Weight	286 g			Max focal length	16 mm
	Length	56 mm			Auto focus	Yes

"Razor sharp fast focus, small enough to carry all the time and now that I take a few "special" shots on my jobs, this lens always helps to close a sale."

	Aperture	f/2.8			Diameter	73 mm
	Focus motor	None			Min focal length	15 mm
	Weight	370 g			Max focal length	15 mm
	Length	65 mm			Auto focus	Yes

"I shoot a lot of tight spaces, like TV Studios, Edit Suites, Master Control Rooms. This lens is perfect for that."

	Aperture	f/2.8			Diameter	n/a
	Focus motor	None			Min focal length	14 mm
	Weight	0.7 kg			Max focal length	14 mm
	Length	n/a			Auto focus	Yes