With this adaptor, you'll be able to mount Diana lenses, like the Lomography Glass 75mm Diana lens reproduction, directly to your Sony NEX camera or E-Mount compatible body. The lens clicks in to place just like lomo's nikon and canon adaptors. There are two parts - the adaptor, and the aperture. This allows you to create new apertures, or even shoot without one for a wide open fuzzy look.Print the main adaptor without supports. I used .2mm layer height and PLA, and that worked great. Print the aperture upside down at a higher quality if you can. You might need to use some pliers to twist it in to the adaptor body. Neither part required supports or a raft on my Makerbot Replicator 2.