In all the situations we used the Oregon 4 it performed fantastically well. If you are looking for a monocular that is reasonably priced, yet still delivers good-quality views, then this is the model for you. It has sharp optics, is good in low light and has a rugged construction, enabling it to cope with most situations. It's very easy to use and the external focusing wheel makes spotting those elusive, quick-moving subjects easy, even with sturdy gloves.”
Above is an excerpt from a review authored by Matt Morris and published on Space.com website. Click here to read the entire review.