Sigma Imaging (UK) Ltd

	Geoffrey Crawley - Amateur Photographer - March 2005 'With regards to controlling distortion, the Sigma 150mm is clearly a first-class optic.' 'Sigma has produced a good all-round performer that will be welcomed over a broad band of applications... it represents very good value.'

	Ephotozine - June 2005 'A well made and thought out macro lens with enough focal length to enable skittish insect photography without putting them to flight. Quiet and faster focusing with the ability to restrict the focusing to the area you are working in improves the experience also. Good balance on the excellent tripod collar makes for easy tripod work.’

	F2 Freelance and Digital - June / July 2005 'The Sigma 150mm f/2.8 Macro was, quite simply, excellent on full frame digital, excellent on full frame film, and stunning on APS-C sensor digital where the crop factor made it feel like having a 225mm f/2.8 for full frame which would focus larger than 1:1! This lens, tested in Nikon mount on the D2X, Fuji S3, Kodak DCS Pro SLR/n and Velvia 100 film would have to get our highest blob rating if we didn’t despise blob ratings. Of course it has won photo press awards already, and no wonder.'

	Professional Image Maker - June/July/August 2006 'Photographers who specialize in natural history photography either for money or enjoyment are going to love this one!' ’The engineering of this lens is up to the usual high standard we expect from the maker.’ 'The performance of the Sigma was essentially flawless and in the field it was way ahead of all the other problems such as camera shake and subject movement – this is a lens you can trust to do any job.' ‘The 150mm lens however is a real beauty, right up there with the standard we have come to expect from Sigma.’

	Which Digital Camera - September 2006 'Sigma’s EX Matt finish is smart and hardwearing. The broad manual focus ring has a quality feel and good ribbing, so is easy to grip. Focusing is internal so the lens doesn’t change size as you focus closer. AF is smooth and almost silent, thanks to Sigma’s Hypersonic Motor, and a three position focus limiter stops the lens hunting through its full range.’

	Photography Monthly - June 2007 'This lens is professionally built with all the attributes that you could possibly want included. It’s quick and quiet in use and provides punchy image quality, plus it sports a price tag that won’t make your bank manager blanch.’

	Professional Photographer - July 2007 'As a macro, it works well, with plenty of working distance to chase bugs and the like, but short enough to handhold. Professionally built and offering everything you could possibly want, this lens is quick, quiet and produces punchy images. And the price won’t make too big a dent in your bank balance either.’

	Digital Camera - September 2007 ’Closest focus distance is 0.38 metres but with a focal length of 150mm, you don’t need to get so close to start with.’ ‘With its 150mm focal length, HSM autofocus and sturdy tripod collar, the Sigma certainly has plenty going for it at the price point.’