SUPER RARE Ernitec Denmark Super fast Lens F 0.95 / 17mm C-mount (great condition) Description: I had two of these, I keep the worse condition one and I put this to sale to fund other projects. This lens is a very rare and hard to find super-fast lens of great quality. It works on CS and C mount cameras. I don't know if it will be good for mirrorless cameras, but recently one got sold (for 450) that said to full cover "BMPCC BLACKMAGIC" camera (1" CCD). Originally intended for C mount and CS mount cameras (CCTV or Industrial). Iris motor works when applying DC power (3-9 volts work good), and you reverse polarity to make it turn the other way. You can unmount motor to turn ring manually, of course. Great for METEOR or ASTRONOMY usage. Includes caps. Iris and focus work great. Issues: item shows vintage marks. Some little dust spots inside, but very little in number and negligible in practice. Back lens has very little cleaning marks, but VERY VERY light. Most sellers would not even mention it. Overall it is in very nice condition.