If you need high performance for faster discovery, especially of birds on the move, take a close look at the new lightweight alloy bodied Steiner Merlin. They precise, yet amazingly rugged and also fully waterproofed for even the rainiest days.The optics are made with premium optical glass and are coated with the own natural color transmission multi-coating which boosts light transmission much higher than similar binoculars in this price range and yields extraordinary clarity, resolution and color fidelity.Power, with exceptional brightness. Recommended mostly for distance glassing such as shorebirds, hawks, falcons, eagles. Also good for getting extraordinary close-up views at feeders and nesting, while maintaining good distance so not to spook birds.