The lens was bought, I will not hide it, for its price - 4K money in total. Competitor 1.4D cost 2.5 times more, and the new 1.4G cost 4 times more. Lives on D700. I tried it "for starters" to decide on further needs and . perhaps I won't change it. Maybe - on the older 1.4D, but only because of the better design (less plastic). Comparing them directly gives reason to believe that they are equivalent in terms of image quality: equally low distortion and aberration, equally low "hares", the same, equally sharp (at the same aperture), and so on. In general - "why pay more?". Only constructive. I don’t like the new G-lens because of its plasticity (no better than 1.8D) and low speed: I manage to raise mine, aim and shoot a couple of shots when the motorized G-version only has time to focus. Now, as a result of the work, I can say that the open f1.8 aperture is not very suitable - only in night shooting and other "bad" cases, where low sharpness is quite adequate to high ISO, most likely. It would be the same with 1.4D (1.4G would be better - it's sharp enough at f2.0). And from the "sharp values" of the aperture . here it would be better for me to take a "sigma" 50 mm - which is "macro": at a price similar to 1.4D, it would also be with "macro", with good sharpness, from its 2.8.
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