Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
Will never buy Tiffen for Canon again. Bought two 67mm UV filters. First one mysteriously cracked although I had no knowledge of my camera being bumped. I was happy that my lens didn't get damaged. Bought the second one, put it on my lens along with lens cap, put the camera in my LowPro sling and when I took the camera out and took the lens cap off, the damned thing was cracked more than the first one!
I know that the bag wasn't bumped enough to break it, my only thought is that poor design that doesn't allow to put the lens cap on properly is what is causing the glass to break - the thread is way too short for the Canon lens cap to fit all the way in, or perhaps the glass has weaknesses that cause it to crack so easily. It is in very tight.
Note: never had these issues with my old Nikon versions of Tiffen filters, all are still in one piece.

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