Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
It's a metal ring with glass in the middle. What's to review? It's a cheap way to protect an expensive lens. It doesn't degrade the pictures you take, it doesn't improve the pictures you take but if ocean spray, sand, sparks, smoke, grease, fingerprints, spit or any other junk gets on your lens, you can clean this easier (the surface of the actual lens has a coating that will be damaged by most cleaners and scratched by most tissues) and even replace it if you need to for a fraction of the cost of a new lens. I never use a new lens or camera until I've screwed on a protective filter. And this one is as good as any.

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