Fujifilm X100V  type_Black & White 54 L is a short

54 L is a short telephoto lens for the Mamiya 6 medium format rangefinder camera

6 is an autofocus zoom lens designed for Pentax autofocus film cameras- but this is a standard K-mount lens

and that gooey base is Triethanolamine

This is a clean Carl Zeiss HFT Distagon 40mm f4 lens for Rollei SL66 series cameras

Fujifilm X100V &nbsptype_Black & White 54 L is a shortThe Fujifilm X100V is a thoroughly modern high end compact digital camera with a fixed Fujinon 23mm f2 lens, 26mp sensor, tactile dial based controls, and a very nice hybrid optical electronic viewfinder. Image quality is excellent, with plenty of built in colour modes so you can tune the final image to your preferences. In excellent condition, with only very minor cosmetic wear from light use. Under 8000 actuations, clean lens, excellent image