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I swore to myself when I started collecting lenses that I'd only use those of my camera's manufacturer but the Sigma changed that. I was lucky enough to get my hands on the lens before purchasing it and immediately noticed how sturdy this lens is. That in itself implied reliability and in the years i've been using the lens this has held true. The build quality is excellent. It feels rugged and unbreakable, but some may find it slightly on the heavy side if holding it for extended periods of time. The coating on the lens body ensures constant grip and the zoom/focussing rings are well proportioned for ease of use. This is a reasonably fast lens which I have used predominantly for low light music photography without a problem. It's fast enough to cope with most situations and the focal range is ideal for such a style of photography enabling wide stage shots, as well as tighter shots of the performer. This lens could sit on your camera and be suitable for most day to day requirements. Image quality is excellent, stopped down from maximum aperture has produced the sharpest results for me, but it produces a great image wide open which is generally how I've used it in the past. Focussing is fast! It's also quiet which means you won't be distracted by the noises at the front of the camera and can concentrate on the job at hand. A great accompaniment to any SLR.
Bought this lens back in 2002 (Canon EOS version) and used it for 5 years for weddings and commercial work. Autofocus speed was excellent, and the f2.8 aperture allows Canon cameras use their high precision x-type sensors. Image quality was very good. Contrast not as good as similar L lenses but perfectly acceptable. Sharpness was truly excellent when stopped down to f5.6, and usable wide open. For the price this is an optically impressive standard room. Pincushion and barrel distortion well controlled. Vignetting acceptable wide open. Some CA, especially in backlit scenes, but correctable in RAW with software. Front element does not rotate during focusing so ideal for filter use. Had no problems with reliability (have had stuck aperture diaphragms on other Sigma lenses but their customer service was superb). Unfortunately, a severe drop led to a misaligned internal element, which caused a left/right discrepancy in focal field. The lens was given away to a friend who still uses it for landscapes (stopping the lens down remedies the focal plane issue). With a budget of around £400 for a standard zoom this lens is definitely worth considering. The real option is whether you would want to sacrifice the fast aperture for some form of optical stabilisation. Comes with an excellent padded case and the lens hood is included. In conclusion: Superb optics for the money, great AF and very well made. However, it's robust rather than bomb-proof and doesn't have the features of some more modern lens designs. It's great value for professional use but there are smaller, image stabilised lenses that may suit general hobbyists better. Note: battery life is really N/A but I've given it 5 as there's no image stabilisation to cause accelerated battery usage.
Sigma is a world leader in lenses and they are proving that they can actively compete with Cannon and Nikon This Sigma 70mm f/2.8 EX DG Macro Interchangeable Lens is a great lense, I was suprised just how good infact, I have several Macro lenses, by cannon and nikon and this is easily as good if not better. The build quality is superb, the lens feels very robust and the manual focus ring is nicely it feels very sturdy and looks like a very expensive Nikon lense as apposed to a cheaper alternative. The opticals on this lense are very good, I compared them from f/2.8 through to f/11 and f/16, noticed there was a little colour reproduction problem, but nothing serious and certainly unless you were a Professional photographer you wouldnt notice. Specifications Focal Length 70mm Aperture f/2.8 Angle of view 34.3º Filter size 62mm Construction 10/9 elements/groups Focus type Floating system Closest focus 250mm (1:1) Weight 527g Dimensions 76x95mm Mounts available Sigma, Canon, Nikon (D), Sony, Pentax Tripod bush No Finally there are better lenses, much better, but at £400.00 you would be very very hard pressed to find anything as good. It says it fits most SLR's, I checked it with Cannon and Nikon
** Although this category is entitled "Canon fit" the lens is the same for all camera types and I have reviewed it in general ** Sigma is currently taking the lens market by storm as they bring out lens after lens for all types of cameras and all types of photographers; they are churning out lenses faster than some new members on here can churn out reviews! Some photographers prefer to work with a long zoom lens that will cover them from wide angle to about a 300mm zoom but the professionals like myself prefer to have a lens for every occasion. When it comes to macro photography (which for anyone that does not know what macro is, it is basically taking photos at very close range)special macro lens is really the only way to get a brilliant result although very decent results can be produced from some versatile lenses these days. This Sigma 70mm f/2.8 EX DG Macro Interchangeable Lens is a dream lens to work with and it produces great macro shots. I am not generally a macro photographer as I make my living as a portrait photographer I tend to be mainly shooting at around 100 - 120 mm but I love to get away from all that and do some macro and landscape in my spare time. This lens is a fairly recent addition to my collection which now counts 23 lenses but it is one of my most used recently outside of work. The build quality is superb on this little lens and there is a somewhat good look to the matt black finish on this lens. The lens feels very robust and the manual focus ring is nicely torqued taking only three quarters of a turn to move through the full focus range. There is no sign of play when the barrel is extended and it actually feels like a very sturdy more expensive lens than it is. Sigma have an ongoing and ever improving reputation for producing great macro lenses and this one will only serve to better that still. The optical qualities of this lens are superb and whether you are shooting at normal distances or whether you are getting right up close and personal with very tight macro shots there is no distortion or purple fringing to speak of in the finished images. The lens proves to be sharp right from the outset at f/2.8 and stays that way right through to between f/11 and f/16 but at f stops after this there is a slight problem with colour reproduction but it is so slight it would probably never matter to anyone other than a macro pro intending to make his/her money from selling the images they have taken. I could truly have little or nothing of a negative opinion to give on this fine lens and would indeed be happy to recommend it to anyone in the market for a good quality macro lens at a very affordable price. This little lens is a great addition to anyone's camera bag and I for one am well glad I bought it. Specifications Focal Length 70mm Aperture f/2.8 Angle of view 34.3º Filter size 62mm Construction 10/9 elements/groups Focus type Floating system Closest focus 250mm (1:1) Weight 527g Dimensions 76x95mm Mounts available Sigma, Canon, Nikon (D), Sony, Pentax Tripod bush No My overall opinion on this lens is that although there are better available there are none better at this price, costing only around £399 in the UK this is a bargain lens when compared to other macro lenses of this quality. The lens comes complete with a very durable screw in lens hood and the lens hood will not only help with keeping flare of the lens in strong light but it will also stop accidental damage occurring to the glass, which can happen all to easily. This lens is available for many types of DSLR camera such as Canon, Nikon (D), Sony, Pentax so no need to worry if you do not shoot with Sigma as I certainly do not! I am a Sony user and this lens works brilliantly with my Sony A900 and also my smaller Sony A350. SCORES: Colour reproduction - 9/10 Overall image quality - 9/10 Build quality - 9/10 Handling qualities - 9/10 Focussing qualities - 8/10 Overal - 9/10 NOTE: Please take note that some of the Quick ratings below, such as battery life do not actually apply to this product and therefore I have just given full marks. Thanks for reading. © thebigc1690
Large aperture standard zoom lens provides superior performance both for Digital SLR Cameras and 35mm Film SLR Cameras. To achieve an F2.8 aperture at all focal lengths, it employs three aspherical Lens to provide optimum aberration compensation. Two Special Low Dispersion (SLD) glass elements are provided for color aberration compensation, to assure high image quality. Features: Lens Construction: 14 Elements in 13 Groups Angle of View: 84.1 -34.3 degrees Number of Diaphragm Blades: 9 Blades Minimum Aperture: F32 Minimum Focusing Distance: 40cm Maximum Magnification: 1:3.8 Filter Size: Diameter 82mm Dimensions: Diameter 88.7mm X Length 115.5mm Weight: 715g