For anyone who's chosen to use legacy lenses on digital bodies, the initial lens choices would likely be any of the zillions of manual focus 35mm full frame types. They are plentiful, cheap (compared to their 'digital' versions), and have mounts that can handle cross-branded lens adaptions with matching adapters readily available. Whether these lenses were passed down from family or tucked away from previously owned film cameras, or something newly sought out from online sites or garage and yard sales... they are familiar to most of us and the obvious first choice. They are however, not the only choice.
While looking for some lenses in Contax/Yashica mount for both mirrorless and film, I happened across a buy now offer on eBay for a used Yashica ML 28-85mm f/3.5-4.5 Macro. These are scarce to locate and probably more sought after than other C/Y Yashica branded zoom lenses, as they have a reputation for edge clarity, color rendition, and sharpness. When they do show up for sale, they may not always be in the best optical and/or mechanical shape due to some inherent design issues.
This particular lens was listed at a good price but as noted from the seller, it was suffering from heavy hazing on the internal elements. Aside from that, it was fully functional and in reasonably good cosmetic condition. I clicked the 'Buy Now' button and had it in-hand several days later. This wasn't going to be my first lens tear down or cleaning, but it would be my first attempt with a zoom lens.