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It comes to market at a $599 USD MSRP and has the smallest, lightest build while also giving a wider maximum aperture over most of the focal range. I don’t love the focus motor, though it gets the job done, and I don’t love the vignette of the A037, but that’s hardly unique to this lens. I do love the resolution, low coma and chromatic aberrations, and good color rendition. You get a lot of the performance of the 15-30 G2 in a much less extreme package.