Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
Those of us old enough to have owned (or still own) a collection of prime lenses for our film SLRs will appreciate this little gem by Nikon, an amazingly compact and inexpensive 50mm f/1.8 lens designed for 35 mm cameras but fully adaptable for the DX format as well. On a digital camera, this lens has an equivalent focal length of 75mm, turning it into what we used to call a "portrait lens". Well, this little 50mm Nikkor is available at a price of just a bit over $100! It is fully automatic and very fast-focusing despite not having a built-in motor, probably due to the fact that it is a prime lens. Resolution and contrast are outstanding for its class and its image is totally free of visible geometric distortion. This is truly a rare buy -- assuming you do a lot of portraiture. Snap it up while it's still available. What can you lose at this price?

The general usefulness of this lens, however, is somewhat limited, its focal length being a bit too long for everyday use, although it is excellent with a 35mm format. Also, I find it disappointing that a lens shade doesn't come with it. I did locate a discontinued Nikon snap-on shade in a local store and I hope you can, too. Otherwise you are stuck with a screw-on shade.

Enjoy.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: B: positive