If the reports are credible, the Sigma 150-600mm F5-6.3 DG DN OS lens will be coming soon. This will be the version of the lens they created for DSLRs, but it will be for mirrorless. That’s annotated by the DN moniker in the lens naming. If you’re confused about Sigma lens names, you can check out our Sigma Prime Lens guide right here. We’ve tested the Contemporary and Sports versions for DLSRs (pictured in this blog post) a while back, and they had some problems back then. We can predict that it will come in Sony FE and Leica L mounts, though there’s a possibility it might come in more.