Honestly, I think the 135 DC is getting a bit long in the tooth on 24 MP FX. On 12 MP it was about as good as the Canon 135/2. I still have the Canon 135/2. One summer I mixed and matched the Nikon and the Canon for a day on the 5D classic, and the two are hard to tell apart when the shots are randomly moving back and forth between the two lenses on the SAME, exact scenes! But, I dunno, the 135 DCV has a lot of longitudinal CA at wide apertures. I think a really modern zoom might be better at f/3.2.
I don't have a D800, or I would try my 135 DC on it and let you know. I've recently begun growing more and more critical of lens performance, not just optically, but focus-wise, and handling wise. On the AF-D lenses, you don't have either focus lock buttons on the lens, or full-time override, so shooting critically-focused portraits means you need to either use a back-button AF method, or hold the AF-lock button, or go to single-servo focusing and...I dunno...AF-S focusing is just easier, overall. The 80-200 AF-S has three focus lock buttons at the mid-point of the lens, which makes it a fabulous-handling lens; much better than the VR-1 where the buttons are wayyyyyy out near the front filter.
I have a 135/2.8 Ai-S, similar or identical to the one mentioned above. I have not shot it in years, but it is very small, light, and affordable. I think the 105 Defocus is actually the better lens. I used it this Sunday for 300 frames or more, out of 1,055 frames, and it did "okay" until the light got low, around 7:00 PM in a shady area, and then it was very sketchy, focus-wise. I ditched the 80-200 AF-S/2.8 because it was sooooo slow to focus in that craptastic light. I probably should have turned on the flash and went to AF-Single focus and used the AF assist beam, bvut didn't really think of that.
Are you aware of the new Zeiss 135/2? Perhaps one of the finest lenses in the world available in F-mount for still cameras? ANd almost totally free on ANY chromatic aberration, even wide-open. It is a simply glorious optic. Look into it. Yes, it is manual focus. But wow...you want a lifetime 135? That's it.
At f/5.6, the needed f/stop for most close-distance portraiture a LOT of lenses are plenty good. Focusing critically is probably as important as sharpness and resolving power of the lens. I think the AF-S lenses actually focus more-accurately, more-often, than the screw-driven ones do. Page 3 of this set has a lot of 135 DC at f/5.6.
DaisyPusher Photo Gallery by Derrel at pbase.com
Focus microadjustment tests I did on my 135 DC this Sunday morning. It was front-focusing a tiny bit on me, Here's the wide-open Lo-Ca look.
[here it is a 1400-pixels wide
D3X_7749_135DC f2.0-all.JPG photo - Derrel photos at pbase.com ]
Here is the above frame,a center crop, shot wide-open on the D3x at ISO 500 at 1/1000 second:
[ see it best here:
D3X_7749_135DC f2.0-CENTER.JPG photo - Derrel photos at pbase.com ]
Now, by f/4.5, where I actually SHOOT a lot of portraits with my 80-200 AF-S or other lenses, the 135 DC still exhibits longitudinal CA. I often stop down to f/5.6, where it is pretty much mostly gone. This Lo-Ca issue is why I think the 105 DC is a stronger lens-it has less of a problem with Lo-Ca,,and why the 80-200 AF-S, with multiple ED-glass elements, is actually a stronger lens at wider f/stops than 5.6. Here's the 135 DC at f/4.5 at 1/500 second at ISO 500.
View attachment 83497
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]D3X_7753_135DC at f4.5.JPG photo - Derrel photos at pbase.com