Very Good As a retired mariner where 7 x 50 binoculars were the best for horizon scanning and for keeping an eye on deck cargo, these Helios Fieldmasters are excellent and remind me very much of my years at sea in the Merchant Navy. Being able to read a compass bearing is also a useful feature, whether for determining position or deciding if there is a risk of collision from a closing vessel. However, as well as these, the combination of a modest 7x power with the reasonably large, but not giant 50mm objectives is also one of the most frequently used setups for observing the night sky using binoculars. With their ergonomic rubber armouring, the binnoculars are easy to grip and are also protected against shocks. Looking through the binoculars on a wide of daylight terrestrial subjects (landscapes, street views etc.

So for example, if you are looking for The Pleiades (Seven Sisters) and you know that to find them, you need to look for the constellation of Taurus this is fine and not too difficult with just your eyes. Thus compared to higher end optics, these will capture and transmit less light and thus produce a less bright image. Porro prism binoculars (named after the Italian who invented them, Ignazio Porro) have two prisms which invert the image the right way up. The testers liked its grip and light weight and found the optics virtually as good at night as the more expensive DCM model.Optical performance is superb due to premium quality BaK-4 prisms, multi-coated optics, long-eye relief, and oversized eye-lenses. This combination of great value for money and comfortable, easy to use size make this a perfect entry level model. However all of these have smaller exit pupils than the 7x50 configuration and thus whilst you get more detail, the image is probably not going to seem quite as bright to most people.

This is a critical performance factor, especially important for those wearing spectacles: the longer the distance, the better. Focus-Free" means that the binoculars have been set to focus on a distant object with the optics using your eye's natural ability to focus, rather than relying on manual adjustment and focusing mechanisms. Protection – With these, you also get the benefit of a comprehensive Lifetime Warranty from Sightron. Above is an excerpt from a review authored by Paul Money and published in Sky at Night September 20.Built to exceed military specifications for superior optical performance and durability, they show their true worth by providing high resolution and brightness at dusk and dawn. It comes with a reticle scale but no built-in calculator ring, and is available in all-black or black and white. However, if you keep them at home, or safe and out of the rain and away from dust they will be fine.

All pairs passed our ‘dunk’ test for floating (with swim strap where appropriate) and waterproofness. The compact and handy body enable the BRESSER Hunter 7x50 Binoculars to be the perfect companion on just about any outdoor activity.So at high powers, it can be hard to locate a particular star or planet because you lose all your reference points around it. of eye-relief is good and along with the improved twist-up eyecups makes them a solid choice for eyeglass wearers.