... and is fairly sharp
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... and is fairly sharp

The MTF-50 result - better correlated with perceived sharpness - tells a slightly different story, indicating only around 875 line pairs per picture height resolved, which translates to ~4.6MP, or 19% of the total sensor resolution. It's not a terrible result, but does indicate that while the lens resolves a lot of detail, it doesn't quite maintain as much contrast as a higher performing lens might. This is no surprise, given the lens' size, weight, and price.

While performance isn't state of the art in terms of macro lenses (the Sony FE 90mm F2.8 deserves a shout out here), it does a good job throughout the aperture range, with good field uniformity, and fair ability to resolve fine detail, particularly when you factor in the disadvantages of the smaller APS-C sensor (which places high demands on lens' resolving power). It doesn't have L-series levels of contrast and perceived sharpness - but we wouldn't expect it to.

See our gallery for a set of infinity shots to see how this tiny macro resolves real-world detail on a flat plane.