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Creates unique shots, great for landscapes and, oddly close ups

Advantages: HSM, DC, great build quality, great fun
Disadvantages: light fall off can be an issue

...this lens as my focal range was limited to 18mm at the widest end, and had always wanted a good quality super wide angle lens without the rediculous distortion you get from cheap bolt on imports. I opted for the Sigma 10 - 20mm f/4 - 5.6 EX DC ...

markusrowe 03.01.2012 · Read full review
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Review of Sigma 10-20mm F4-5.6 EX DC HSM - Canon

Sigma 70-300mm F/4-5.6 APO DG Macro - a very versatile lens

Advantages: Good value for money, versatile
Disadvantages: No image stabilisation

I bought this lens with a specific purpose in mind - photographing model aircraft in flight. I had previously used a Canon 80-200 mm which I found a bit too limiting at the long end of the range - an excellent lens, but not quite right for the job. The ...

Canonball 14.01.2010 · Read full review
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Review of Sigma 70-300mm f/4-5.6 APO DG Macro

Sigma 18-250 mm Lens - A Zoom With A View

Advantages: Compact for such a powerful lens. Good build quality. Probably the only size of lens I'll need.
Disadvantages: All zooms are something of a quality compromise.

I’ve always liked having a camera that can have interchangeable lenses, even if I don’t buy (m)any. In the case of my current DSLR (Digital Single Lens reflex) a Nikon D7000, I do actually have two lenses. a) The 18-105 mm ‘standard zoom’ supplied with t ...

BNibbles 01.02.2014 · Read full review
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Review of Sigma telephoto zoom lens - 18 mm - 250 mm F/3.5-6.3

It's Big, Black and Heavy And it's not cheap

Advantages: Fantastic Clarity
Disadvantages: Weight and Cost

...talking about? The new Sigma 800mm APO F5.6 EX DG Lens. First let's get the technical bits out of the way. I will be honest and state that I do not understand all the data. lens construction 12 elements in 9 groups Angle of view 3.1 degr ...

Coloneljohn 28.07.2005 · Read full review
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Review of Sigma 800mm F5.6 EX DG HSM - Canon

A fantastic Landscape an Wildlife Lens

Advantages: Fantastic zoom range, exceptional image quality
Disadvantages: Heavy to carry, difficult to hand hold at 500mm in low light.

I recently purchased this Sigma 50-500mm f4-6.3 DG EX lens for my minolta. It is fantastic! Lets get the negative things out the way so we can focus on the bountiful positives. 1.) It is heavy. Weighing in at nearly 2Kg this is no lightweight pie ...

benzas 12.11.2006 · Read full review
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Review of Sigma EX zoom lens - 50 mm - 500 mm F/4.0-6.3