Different magnification despite same focal length and same minimum focusing distance?

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noisephotographer Contributing Member • Posts: 613
Different magnification despite same focal length and same minimum focusing distance?

How is this possible? Sigma 30mm f/2.8 DN A and Sigma 30mm f/1.4 DC HSM A have the same minimum focusing distance as well as the same focal length. But the Sigma 30mm f/2.8 has a maximum magnification of 1:8.1 whereas the Sigma 30mm f/1.4 has 1:6.8

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