| Year | 1975 |
| Lens Groups | 5 |
| Lens Element | 6 |
| Aperature Blades | 8 |
| Minimum Aperture | f/22 |
| Closest Focusing | 4. m |
| Max. Magnifcation | 1:7.4 (0.135x) |
| Filter Size | - |
| Diameter x Length | 94 x 282 mm |
| Weight | 1300 gr (2.87 lb) |
| Hood | - |
This lens i bought for € 450 at a local photo shop , together with some drop in filters and a 1.4 x extender, and the piece to put it on a tripod.
It's a superb lens. I also have the NewFD 300mm F4 (non - L) and I don't use that lens any more since I have the 400mm.
I nearly always use this lens wide open, handheld, with 400 ASA film. Bokeh is great. I do a lot of close ups with it. It does a sublime job of detaching my subject from the background.
My lens has been modified to accept the 1.4 x extender. (The rectangular opening in the back is turned out) With this extender, I see no degradation in image quality.
As with all FD lenses I have, build quality is superb, very smooth focusing and flawless diaphragm clicks.
Dirk Dom.