Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Well built, sturdy piece of equipment.

If you're very much into macro photography the extra magnification can make the difference between a spot on Depth of field and a wasted capture.Other than macro photography, this eye-piece can be really useful if you have trouble using the small viewfinder. The large eye-cup helps cut out any stray light that might normally interfere with what you want to see.This would have gotten 5 stars but the clarity isn't consistent over the entire extent of the lens; diminishing towards the edges.