At DX: Long Immerdrauf- or short portrait lens?

I had bought my first SLR me about 3 years ago and was looking for a high-intensity supplements. I wanted atmospherically set va people in low-light scene - without flash. Finally, exemption or playing with sharpness / blur is for many (and so me even then) the main reason a "better" camera to buy. The exemption of an object in front of the rear base can be influenced by many factors: Open shutter, less distance to the subject, a large distance from the background, long focal length, large camera sensor. The Nikkor AF-S 50mm 1: 1.4 g brings a wide aperture (1.4) and the normal focal length of 50mm.

Portrait lens?
A 50mm lens with maximum aperture of 1: 1.4 behaves on DX-sensor approximately like a 75mm lens at f 2 on the FX sensor. Consequently, this results in a decent short portrait lens. Who has but once shot a portrait at 70mm upwards, knows about the image effect of higher focal lengths and it just make a considerable difference.

As always it?
The 50mm is fairly compact, making it ideal actually a to leave it on the camera. For "Street" photos I find the focal length very good to use at parties with the above restrictions as inconspicuous Portrait Lens also. An entire vacation with it? Yes and no. 50mm on Crop remains especially - I'm so on many occasions drawn through Munich. The images were always clippings of events, details. Classic Street motifs are possible, but often lack of context.

IMAGE QUALITY
Open aperture is really hard to use. In Aperture 1.4, it is difficult, at least in my copy, something (so small the focus range may be) sharp to get / kopntrastreich. Really good supplies from the Nikkor from about Aperture 2. But since it is then also to use really good: Great = creamy blur, high contrast, no notable vignette, beautiful colors! Fall specifically at full aperture with purple and green fringing the contrast edges, but at 1.4 I am anyway not often go. Overall, Bildqualtität is excellent after stopping down. Logically, I can not comment on the performance of FX.

CONCLUSION
The Nikon 50mm f1.4 is to DX neither fish nor fowl. For unobtrusive portraits (from the breast), it is perfectly suitable, partly for Street. It's small, relatively easy, but great processed. Through Aperture 1.4 you land at practical aperture of about 1.8-2 what seeehr much light captures. I like the images from the 50mm consistently better than those of my 35mm DX 1.8 - which is partly due to the focal length (50mm I like easy), but also on the bokeh and the contrasts. A 50mm on DX certainly not for everyone (although one is always struck pray), but at least succeed so exciting images than with my 35mm. The closer image section is indeed a challenge, but certainly the effort (Fußzoom) value. The images are high-contrast, sharp and beautiful the bokeh.

ALTERNATIVE
The did not exist for me at that time. For the 50mm AF-S 1.8 had not yet appeared and the AF-D had no autofocus on my D3100. Today I would resort to blind AF-S 50mm 1.8. The 2/3 stop is bearable at around 200, - lower price and otherwise similar performance.