Sigma Imaging (UK) Ltd

	Photography Monthly - May 2007 ‘Only slightly shorter in focal range than some of the more expensive contenders here, Sigma has managed to produce a remarkably well-behaved lens that produces crisp, clean images with neutral colour and excellent contrast.' 'Excellent optical resolution and general performance. Light enough to carry all day but retains a solid feel, boding well for its endurance. Good close focus ability.'

	What Digital Camera - May 2007 ‘If you’re looking for something completely different, Sigma provides a very viable option. For less that the price of the camera brands lenses, the 18-50mm features macro capability, making it unique in this round-up. Not only that, but the fast aperture and excellent performance offer good value for money.’

	British Journal of Photography - 21st March 2007 ‘Equally pleasing to see was the internal focusing mechanism that ensured the bayonet-fit, petal-style lens hood was always in the correct position for optimum shielding.’

	Digital Photographer - Issue 57 ‘The insides of the lens have also had a touch of an upgrade too, improving the image quality produced by what was already a good lens to start off with. When you add this to the excellent build quality – which Sigma UK has enough faith in to offer a free extended warranty making three years in total – you start to see where the value for money in this optic is.’ ‘Images printed from this lens are crisp and sharp, even without post-processing enhancement and, if you do like to dabble on your computer, very little correction is needed.’ ‘Make no mistake: this lens is capable of mixing with the best in the optical world.’

	Professional Photographer - June 2007 ‘…Sigma has managed to produce a remarkably well-behaved lens that produces crisp, clean images with neutral colour and excellent contrast. A considerable improvement over the previous version, the 18-50mm f/2.8 EX DC Macro lens offers the best performance of the seven on test. Controls are smooth, distortion is minimal, and it’s the sharpest of the bunch.’

	Digital Camera - October 2007 ‘The second surprise is the image quality. From its macro range of 0.2 metres to infinity, out test images were pin-sharp, with superb colour and contrast.’ ‘With its spectacular image quality, easy handling and a fast, constant f/2.8 aperture, this new Sigma lens is a dream to use, plus it comes with all the usual Sigma extras, such as lens hood and carry pouch.’ ‘Sigma have made a statement with its 18-50mm constant f/2.8 lens which, despite a price tag of less than £300, can match the optical quality of lenses costing three times as much. It’s an absolute gem.’

	Outdoor Photography - November 2008 ‘Optically, it is good and its fast maximum aperture will appeal to buyers. Its close focusing ability is a useful bonus, adding to its versatility. This really is a handy, general-purpose zoom range, so if you don’t already own a standard lens, or are looking to upgrade a kit lens, the Sigma 18-50mm f/2.8 EX DC is well worth a look.’