The Sony 90mm f/2.8 Macro OSS filled a rather obvious gap in the company's lens lineup, but does so quite well. Designed to be a macro powerhorse, this lens offers a 1:1 reproduction ratio. Tiny objects can be reproduced in life-size pixels, and are pretty sharp at that. The lens scored a high 40 on the DxOMark tests, with excellent levels of sharpness and minimal distortion and chromatic aberration. Macro lenses are known for focusing a bit slower, but this lens performs pretty well. The optical image stabilization is a big plus, since the closer you are, the more those tiny camera shakes become big blur.
Packing in all of those features, including a high-end design, does make the lens a bit heavier than other primes. Outfitted on a Sony mirrorless camera, it will feel a bit front-heavy. With a price tag around $1,000, you have to do a lot of macro work to justify the high cost. Despite the high cost and heavier build, the lens is the best macro option for Sony mirrorless cameras. While designed for full frame, APS-C cameras will crop out the slight vignetting on the edges of the lens for even better quality.