Any comment on the 135 D F2 DC lens by Nikon? I have thought about picking one up...
About five years ago, I wanted to see if the 135 f/2 AF D.C. (a pre-"D" model from maybe 1992) I own was as good as the Canon 135/2-L I had just bought for my initial foray into Canon d-slr-dom. So...I figured the best way to do that would be to shoot BOTH the Nikon and the Canon lens, and switch back and forth between them during short sessions, so that I would know that I had shot with BOTH lenses, in the SAME conditions and the same,exact situations. So, I did that for a day one summer's day.
I shot them both on the same Canon 5D FF body, via lens adapter for the Nikon. BOTH lenses create images that look very similar. Very similar. The Canon tends toward more of a green color fringing up close on the front edge of subjects at close distances, and the Nikkor a bit more of a magenta fringing on the rear edge of subjects at close ranges and wide apertures. The 135 D.C. I own, and its 105/2 DC brother, both seem to have a warmer-than-modern color rendering, compared against newer ED glass Nikkors; something I have talked with another user about. So, when for instance, shooting under studio lights, I think the 135 DC is about 800-900 Kelvin units TOO WARM, compared against my "new" AF-S ED Nikkor lenses. Color fringing is worst wide-open and close-up, and is well-controlled by f/2.8, and negligible at smaller f/stops.
It's a solid lens. Doesn't feel all that heavy...handles and balances well...has really "grippy" focusing ring rubber...works almost as well in Manual Focus as in AF,and focuses accurately and easily at close "portrait" type distances, which MANY more-modern AF-S lenses simply do NOT do. Mine seems to have an innately high T-stop; it is the BRIGHTEST lens I own at f/2....and at f/2.5 and f/2.8...it just makes a BRIGHTER image than many other lenses; I attribute this to the simple design and the very low loss of light at each air-to-glass surface. This lens is also a fantastic lens when used in FLAT lighting conditions--it was, I believe, optimized to produce a crisp, bright image under low-contrast, and also low-level lighting conditions. For example, in open shade, the lens produces very crisp, well-differentiated tonal and color values. Same as the 105 DC does. It is a most unusual lens design.