Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM
1. Introduction
Lenses whose focal lengths start at around 100 mm and end at 400 mm are interesting proposals for many advanced photographers. While instruments of 70-300 class, by virtue of their affordable price and still acceptable dimensions, are often chosen by beginning amateurs as a supplement of the kit lens, are an appliance whose focal length ends at 400 mm, are a totally different caliber. First of all its weight makes it difficult to consider it an appliance you can easily take for family strolls. Secondly, prices of such instruments begin at around 700 $, so it’s quite a big expense, which is chosen only by those consumers who are aware of their needs.
There are lots of them, though, as an appliance of this class will interest both wildlife photographers, “spotters” or some sports photographers. Knowing that, lots of companies have these types of instruments in their offer. So far we’ve been able to test two lenses of this kind: Tokina AT-X 840 AF D AF 80-400 mm f/4.5-5.6 and Canon EF 100-400 mm f/4.5-5.6L IS USM.
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Until recently in Sigma’s offer in this class we could find 135-400 mm f/4.5-5.6 DG and 135-400 mm f/4.5-5.6 APO models. This year a new instrument of similar parameters and additionally equipped with image stabilization and HSM motor came to light. We’re talking about Sigma 120-400 mm f/4.5-5.6 APO DG OS HSM, which due to the courtesy of K-Consult we were able to test.
Information about our review method can be read in our article “How do we test lenses?"
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