Lens review
2010-04-16
Sigma 150 mm f/2.8 EX DG HSM APO Macro
4. Image resolution
The Sigma’s 2.8/150 image quality is very good both in the frame centre and at the edge. At the maximum relative aperture the MTF50 function values exceeded significantly 30 lpmm and by f/4.0 they reached almost 40 lpmm. Still you can feel slight dissatisfaction because several other Macro lenses, like a Tamron 2.8/90 or a Sigma 2.8/70, were able to exceed the level of 40 lpmm but, on the other hand, a Sigma 2.8/105 didn’t managed that as well – its performance was even a tad worse than the performance of the 150 mm model, tested here.
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