The Sigma 105mm 2.8 Macro lens


General impressions:

DSC_0295

First of all, it is important to know that there is no such a thing as a bad macro lens. This one is of course no exception. There are basic 3 typical focal lengths for macro lenses. The short macro lenses, 50-60mm typically, the medium range, 90-105mm and the longer lenses, 150-180mm. This one is a medium length and hence relatively versatile: it can be used for product photography, portrait, bugs, flowers... and is relatively compact. The lens extends a lot when used as a macro lens (almost gets twice as long, limiting the actual working distance). The sun hood is a cylinder you have to screw on the front element as a filter. When mounted, you cannot use the lens cap anymore. That design is really not ideal. The finishing of the lens is typical for Sigma (grey coating, a bit fragile, can peel off). The lens allows a magnification factor of 1:1 like many real macro lenses. Optically speaking, it is an excellent package, I didn't see any color aberration, vignetting or distortion. A small macro lens I would recommend but not above the Tamron 90mm or the Tokina 100mm, similar performers for a similar price. I also own a Nikkor 105 VR, an even better performer with the added value of the VR (stabilization), not really useful for macro but very useful for street photography, portrait or close-ups.

Pros

    - super sharp lens
    - excellent optics
    - reasonably priced
    - delivered with caps, sunhood
    - AF limiter switch (whole range or limited)

Cons

    - build quality is average to good
    - AF a bit noisy (but most macro shots are MF)
    - screw type sun hood
    - no pouch
    - extending a lot (length doubles) at 1:1

Also have a look at the Nikkor 105 VR review.

A few examples:

Nice flower

 

Landing procedure


The fly