Sony SLT-A55 Lenses

"Captured tons of amazing shots of birds and wildlife. Images crisp, clear; even at 200mm.- Great quality, easy to focus, quick focus, good aperture.- No cons."

More advanced image stabilization Sigma OS

	Fisheye	No			Aperture	f/4
	Zoom range	4x			Max focal length	200 mm
	Fixed aperture	No			Length	102 mm
	Image stabilization	Sigma OS			Weight	n/a

"The telephoto capabilities of this lens are great and the wide-angle aspects at 18-24 area make this a multipurpose daily go everywhere lens."

Great zoom range 13.9x

More advanced image stabilization Sigma OS

Great telephoto lens 250 mm

	Fisheye	No			Aperture	f/3.5
	Zoom range	13.9x			Max focal length	250 mm
	Fixed aperture	No			Length	n/a
	Image stabilization	Sigma OS			Weight	0.6 kg

"I have yet to really put this lens through its paces, but so far I am very satisfied."

Fixed aperture The same aperture at all focal lengths

	Fisheye	No			Aperture	f/3.5
	Zoom range	2x			Max focal length	20 mm
	Fixed aperture	Yes			Length	88 mm
	Image stabilization	None			Weight	0.5 kg

"I love this lens. It is nice to buy a product and exceed expectations."

Wide aperture f/1.4

	Fisheye	No			Aperture	f/1.4
	Zoom range	1x			Max focal length	50 mm
	Fixed aperture	n/a			Length	68 mm
	Image stabilization	None			Weight	0.5 kg

"this lens is tack sharp with wonderful bokeh"

Fixed aperture The same aperture at all focal lengths

	Fisheye	No			Aperture	f/2.8
	Zoom range	2.9x			Max focal length	200 mm
	Fixed aperture	Yes			Length	197 mm
	Image stabilization	None			Weight	1.4 kg

"Sigma's new Optical Stabilizer is very effective. Focus is pretty much instantaneous, and silent."

More advanced image stabilization Sigma OS

Fixed aperture The same aperture at all focal lengths

	Fisheye	No			Aperture	f/2.8
	Zoom range	2.9x			Max focal length	50 mm
	Fixed aperture	Yes			Length	n/a
	Image stabilization	Sigma OS			Weight	0.6 kg

"I use this lens in architecture photo and I find it really great as it is possible to take otherwise impossible images indoor and images with spectacular distortion of the spaces outdoor."

Fisheye Extremely wide circular images

	Fisheye	Yes			Aperture	f/2.8
	Zoom range	1x			Max focal length	10 mm
	Fixed aperture	n/a			Length	83 mm
	Image stabilization	None			Weight	475 g

"Having the f2.8 throughout the range allows the pictures to be light without noise. It focuses super quick."

Fixed aperture The same aperture at all focal lengths

	Fisheye	No			Aperture	f/2.8
	Zoom range	2.9x			Max focal length	200 mm
	Fixed aperture	Yes			Length	184 mm
	Image stabilization	None			Weight	1.4 kg

"Use in everyday photography, fast focusing and great quality pictures."

More advanced image stabilization Sigma OS

	Fisheye	No			Aperture	f/2.8
	Zoom range	2.8x			Max focal length	50 mm
	Fixed aperture	No			Length	n/a
	Image stabilization	Sigma OS			Weight	395 g