I bought the Lensbaby Composer Pro incl. Sweet 50 Optic for Sony NEX Lens black actually because of the Sweet 50 optic. I addition to Sony Sony E A also have a bayonet, a matching Composer offered and I slammed. For all those who take pictures on APS-C: Lensbaby works really only with full frame. In cooperation with an Alpha A7s one has a very nice combination.