Instruct: Classify the given Amazon review as either positive or negative.
Query: great addon for the 50mm

i got this for my 50mm lens, it is pretty confusing with the various lines and quality of filters made by various filter companies let a lone Hoya. totally worth the extra money as i had a chance to try the lower priced filter and the build quality is noticeable. would recommend this line if one could not afford the high end version.