I'm interested to buy: Century Precision Optics 1.33x Anamorphic Converter Lens for Video Lenses with a 58mm Filter Thread any tips, offers, welcome ... Want to use it with 20mm 1.7 pancake ...
A tip really - I have a Cambron anamorphic which is as far as I could see, optically identical to the Century (the non-focusable one) because I owned both at one stage and then sold the Century. The difference is that the Cambron is in a plastic body as opposed to metal and it doesn't have the locking screw. On the plus side it's VERY light at 120g, compared with the Century. Has exactly the same issues as the non-focusable Century - doesn't like fully zooming in and it can't focus that close - but it's a nice look.
If you like the sound of the Cambron anamorphic adaptor but can't find one, look for a Kenko Panoravision Lens as it's also basically the same lens. Another alternative to the Century is the Optex OTDV58ANA - I had one of these too! - again identical optically to the Century.
I had all these lenses (kept the one) because I did widescreen on the old 4:3 miniDV cameras including the Sony TRV900, which was a lovely 3CCD camcorder.
BTW there's a non-focusable Century on ebay UK at the moment.
I'm not sure of the maths. But the Century is 1.33:1, so with a 4:3 original aspect ratio camera (as that's what they were designed to do, before 16:9 chips were commonplace) you would get 1.33 x 4 / 3 = 1.77ish:1
On that basis if you use it on a 16:9 original aspect ratio camera, you'd get 1.33 x 16 / 9 = 2.364:1 which is probably close enough. Good luck with the bid.
Someone else might like to check my maths relating to the final output aspect ratio but I think that's right.
Definitely if you win it, have a go at making / getting a lens hood. Or get some black Cinefoil, which is great stuff for flagging lights, making lens hoods and creating shaped Bokeh filters.