Exactly what it says on the tin. I recently acquired an old manual Pierre Angenieux 18-180mm f2.2 lens, but I can't find any documentation for it online. As far as I can tell, it was built for use with TV cameras, given the push-pull focusing mechanism and truly ridiculous size/weight (I don't have a scale, but I'd estimate it's upwards of 7 or 8 kilograms).
Around the end of the barrel are the following labels, stamped into the metal:
P. ANGENIEUX PARIS ANGENIEUX-ZOOM TYPE 10X18 J3
Plus serial number
1203891 and aperture/focal length information. The focal length ring also has a label, in English,
Lens made in France (implying it was made for export).
This lens has clearly had a hard life - there are numerous gouges in the metal of the barrel, and more than one place where bare metal (vs. the black anodization) is visible, which, at least to my mind, implies a couple of decades of daily use.
As befits its use for TV/cinema, it has a continuous (i.e. not click-stopped) aperture ring.
That silver bit at the body end of the lens is, I believe, a later addition.
I'm specifically looking for documentation on it - manuals, history, that sort of thing. Or, at the very least, a spec sheet or images of what it's supposed to look like.
UPDATE: I got in contact with Angenieux (and they actually responded this time). They have basically no information on it, and the only things they could tell me were:
- These were manufactured between 1963 and 1973.
- They were originally made for 16mm film cameras.
- They could be (as has been stated in one of the answers) used for Plumbicon cameras.