Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sigma 30mm f/1.4 for my Canon 7D

Wow: The picture quality. Took close up of nursery flowers under overcast skies. Printed using professional service and using 'metalic' finish a few 8 x 10 and 11 x 14s. WOW! Yes, it's fixed focus, but the quality is awesome. Great for portraits.