Now I am not really a prime user, and prefer the versatility and flexibility my zooms offer me. That said when it comes to low light and being able to increase light coming in through the lens by more than a stop, then already primes show an advantage.
Primes generally are considered to be able to give a clearer images since there is no compromise between focus and adjusted zoom.

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A photo of the Nikon 35mm DX 1.8 upright with Box

There is a running general opinion that you do not use DX ( cropped frame ) lenses on Full Frame (FX) bodies, I assume because the final image will possibly be so heavily distorted it will be useless. I am not quite sure what other reason there can be, other than the DX lens is not built with the FX body in mind.

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Another photo of the Nikon 35mm DX 1.8 this time upside down and with a lens hood

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A photo of the Nikon 35mm DX 1.8 upright

With that said What finally made me decide to buy the 35mm I cannot say, I will say at the price it was an easy buy. Since I am not a prime user at all I was reluctant to pick-up a lens I may never use, so the NIKON 35mm DX 1.8 make a perfect test lens, since it is cheap and a nice small lens.

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Nikon 35mm DX 1.8 – Top view of the 7 blades

My quick overview of the Nikon 35mm 1.8 DX lens. This lens is a lightweight at only 200grams and 52.5mm long and a whopping 72mm with the lens hood on. It is quite impressive that within 52.5mm there are 8 lenses in 6 groups, and it is a 7 bladed diaphragm. Just a little thought, your new age mobile phone only weighs in at a few grams less than this lens.