Attached is a photo of my NEX-5R with my modest collection of adapted lenses. Attached to it is my "new" Promaster Spectrum 7 19-35/3.5-4.5, which arrived just this afternoon. The lens is in like-new condition, and I got it for quite a bit less than they usually are listed on eBay. From my reading, it appears this is a rebranded Cosina, which was also sold as the Vivitar Series 1 19-35, as well as a few other rebranded models by other companies. Surrounding the camera are my Vivitar-branded lenses. The rose photo was just a quick snap before a T-storm moved through. More examples are posted in a sample archive. Tony
It took a lot of patience and browsing, but I was able to get several of those lenses for 2-3X less than what others were selling on eBay. These legacy lenses are a fun way to explore photography without breaking the bank. Tony