Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Will this beautiful little lens work perfectly with my little old D40X?
Document: Maybe i'm old school (even though i'm not old) but i love 50mm prime lens shooting. The aperture on this lens is amazing and gives you beautiful bokeh when you want it. The color of the photos is beautiful and it's very very quick to focus. Highly recommended.
Awesome lens for anyone doing any low light work. F1.4 is a little soft but it sharpens real nice from F2 on up to F8. Lightweight and great looking bokeh too boot. I don`t think you can go wrong with the cheaper F1.8 either though.
The bokeh is excellent for portraits and you can see that you have dramatic photos with very little work put into it. If you are not used to Prime lenses (50mm), you need to understand that it is not a very good lens for group photography in a very small place ( say if you live in an apartment). If you have a big house to move around, you can go back and capture a big group - obviously, you will not have this problem outdoors.
It is fast, sharp, and performs well in so many situations. The only thing I don't like about it is that you have to be a foot and a half away from your subject to take the photograph. And that's not a big deal! Most of the time, you can just work that out. It's a little steep for a 50mm lens, but for a Nikon lens I think that it's on the lower end. And it is definitely one of their best lenses. Hope this helped your decision!
Changed my life as a photographer. That kind of lenses you must have in your lense collection; i use it most of the time, even when i "must" use the flash, i turn it off and shoot only with the 50mm 1.4f lens, no flash. The results are magnificent: volumineted images and greate speed to work witk. If you have the money to buy a 1.8, save a little bit more and buy this, the difference it's huge.
I took this on its maiden voyage recently on a wedding shoot, and boy did I get so much out of this exquisite lens.Of course it packs a little more in terms of cost, but the results over my previous 1.8D are astounding.Some of the most beautiful DOF I've captured thanks to this little beast.
I can't say more than this is a great lens. I own a D40 (which is a seriously older camera) and needed a lens with a motor and was a little uncomfortable with the price but when I got the piece I was smiling ear to ear. Its super fast, great for low-light, its by default on my camera body. The bokah is beautiful and fun to play with.
This model is larger overall, leading to a larger focusing ring (& filter), and my hands are a little small-ish, so that could be why. But this isn't a major factor if you use autofocus most/all of the time. The ring on this lens also feels tighter to me-which could be both a good & bad feature. 2) Larger filter size-58mm vs. the old, common 52.
Amazon offers this essential prime lens at $100 cheaper than B&H or Adorama. It did take a little while to get in (these lenses are always out of stock no matter where you buy them). I upgraded from a Nikkor 1.8D and this lens is worth the difference in price. Excellent sharpness, beautiful bokah, and the perfect portrait lens. It does take some getting used to with such a large aperture, but the manuel/auto focus is fast and great!
As the title implies ....this lens is too sharp wide open.Be ware where do you focus, wide aperture can really make or break your photo........At f/1.4 only where you focus is in focus (makes sense, ha? )Not that good bokeh though (same or just a little better than the old 1.4D)On my D300 the lens AF-S is really silent but really noticeably slow.
Answer: If you have a Nikon DSLR camera then it will work perfectly. Best lens I have ever purchased.