Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
i've used this lens with my old nikon d70 for a couple years now, and it's my favorite.  it enabled my improvement as a photographer

lot's of people have written great descriptive reviews already, i'll review by example ->

[...]

what does the lens do?

1)  the wide f/1.8 aperture a) preserves the post-sunset natural skin tones and eye glint by avoiding a flash/red-eye/etc and b) provides a great bokeh - in this example, blurring the nose and emphasizing the eyes in the foreground.  and, in the background, emphasizing the face by blurring the sky and beach

2) the fixed 50mm focal length inspires creative close-up framing, in this case inviting me to fill most of the frame with the subject's face and forget about "getting all of it".  the fixed-length lens continually begs me to consider "what about this frame?" - whereas, with a zoom lens, my attention is on zooming-in or zooming-out to whatever i presume will be the best frame (often, more typical/boring/"everything"/etc).  after a short period of time with this lens, my zoom-lens photos improved as well (and i still prefer this lens)

3) it's very light and relatively cheap.  this particular shot was during a month-long camping/backpacking trip in costa rica.  owing to it's lightness and (relative) cheapness, i had no problem carrying it in my backpack and not worrying about losing it, dropping it, getting it wet, etc.  maybe i can take better photos with the [...]$ (+) f/1.4 lens?  but i may not take it with me in the first place, and it's slightly heavier to carry

 the fixed focal length can only cover the range of frames you can walk to.  i usually wish i could go wider rather than bigger.  but if you want to shoot portraits/people - and specifically faces - this is an amazing lens!  if you're interested in photography, and haven't tried a prime lens - this one provides a great experience at a good price.. it did for me

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