Customer Reviews

Sigma 105mm F2.8 EX Macro Lens for Canon SLR Cameras

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Sigma 105 EX macro is considered one of the best primes for its optical quality. MTF tests, which determine how sharp the lens is, place it just below the famous Canon 100mm Macro. The EX sign tells that the build quality of the lens is higher than that of a consumer-grade product. The big plus is a price. It is almost twice cheaper than Canon 100mm. ALso, it comes with the case and a hood and Canon does not. The drawbacks, however, include potential incompatibility with the future Canon camera bodies. I would highly recommend this lens for advanced amatures on a tight budget.

I bought this lens when they had a sale. It was [price] without shipping charge, and I think the price was the lowest anywhere.
I love this lens. It is a lot sharper than EF 28-135mm IS, which I use most of the time. Now I can take good pictures of teeth from my patients and also good portraits for my baby.
Overall it is very versatile and overall quality is excellent, and I would recommend to anyone interested in macro photography.

This 105mm Sigma macro lens with a fast f/2.8 aperture satisfies you in every department. First of all it gives you a 1:1 true life size macro and these macro images comes out truly amazing... extremely sharp, good color saturation and contrast(on Pentax ZX-7). The 105mm focal length is also suitable for taking portraits. Portrait results have also come out extremely well. The EX finish is aesthetically pleasing, scratch proof and has a metal alloy body for sturdiness. The hood which is provided along with the lens matches well with it. One can also use a 77mm dia lens cap which fits perfectly on the hood, so that the hood can remain permanently on the lens (hood is threaded so that it can screw on the lens like filters.)

A bit of a bother is the clutch mechanism which on has to engage/disengage while changing between MF/AF. But on the positive side, the focus ring doesn't move (in AF mode) and one is more at ease while holding the camera. The other thing is the long rotational travel of the focusing ring while focusing a subject and in AF mode this could sometimes take a while. This could be somewhat solved by using the focusing limiter switch.

Definitely, a well made lens optically and structurally and should satisfy one and all.

This is a wonderful lens with great features for Macro photography. The image quality probably rivals that of any "brand name" lens. As with most any lens, the fixed focal length provides greater quality than the multipurpose zoom lenses with macro facility. However, the focal length multiplier factor of 1.6 should be remembered when using this lens on most consumer/prosumer DIGITAL cameras. This makes the lens an effective 168mm focal length. Shorter, fixed focal length lenses are available both for traditional SLR cameras and also for digital SLRs. As stated on the Sigma site: "The 70mm focal length gives an equivalent field of view as our popular 105mm macro lens when used on digital SLR cameras with an APS-C size image sensor."

This is a fun and good quality lens, offering true 1:1 macro at a reasonably price. I will echo the other reviewers comments about the clutch mechanism. Pretty clunky for an EX series lens. Fast auto focusing should you wish to use it for portraiture or the like, I think it better to focus manually for macro work. I also like that this lens has a very small minimum aperature for increasing the al important depth of field in macro work. I recommend a buy here.