This was $1,500 until DSLR and mirrorless video cameras took over. It's made for video cameras with fixed lenses to give them a more professional cinematic look so you can use different lenses on the camera and have shallower depth of field (bokeh). It makes objects more separated by focus and imitates film with a softer filmic look. You can search videos on YouTube for "Letus Extreme 35mm adapter test footage" to see examples. Tuena a home video camera into a movie camera. This one is in perfect condition and is set up for Canon EF mount, but comes with Nikon mount as well. Thank you for reading. Meetup in Hollywood. Only for sale until August 28th. Thanks!