This is a Nikon Ai Nikkor 35mm F2 lens. - K&F Concept lens mount adapter NIK-L - Front lens cap - Rear lens cap x2 are included. I used it a few times on a Lumix S5. I was able to take pictures with beautiful bokeh without any problems. I used it for taking pictures while traveling, but I am selling it because I don't use it as often. The fifth photo is a test shot taken before listing. Thank you for looking.