So this is an interesting question to me: How do I calculate the magnification of my macro lens if I throw extension tubes on the lens? Is there a formula you can use? To provide hard data I have the Sigma 150mm lens.
So this is an interesting question to me: How do I calculate the magnification of my macro lens if I throw extension tubes on the lens? Is there a formula you can use? To provide hard data I have the Sigma 150mm lens.
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