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Posted 20 hours ago

Steiner Navigator Pro 7x30 marine binoculars - Extremely rugged, sharp images, 5m water proof - Outstanding viewing quality for beginners and professionals, Blue

£39.995£79.99Clearance
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Efficient use of the light gathered is particularly important at high magnifications where images appear darker or for applications were colour identification is essential. Over shorter periods, this is fine for a relatively lightweight instrument, but after a full day in my canoe, I did start to feel it around my neck and wished for a wider strap. the Navigator's are nitrogen pressure-filled (anti-fog) and waterproof to 5m, making them reliable under the most adverse weather conditions. Considering that the objective lenses are fairly small and thus cant collect as much light as larger lenses, these 4. Either way, this is not really what this type of binocular is designed for and so I would still not recommend them to anyone who often needs to view objects at close range.

Large ocular lenses are desired for a number of reasons, which I go through in detail in this article on ocular lens size in binoculars, but one of the most important is that they make it much easier for you to line your eyes up with them. In terms of the image quality, this is another area where this Steiner binocular really impressed me. The carry case is well made and well padded, but other than that it is pretty basic and lacks any extra pockets or a belt loop. The wide field of view you get from these along with an excellent quality image in my mind makes these an excellent option as a mid-sized birding binocular, be that from a boat or on land.Thanks to the 2-way valve technology, maintenance of the binoculars is possible at any time, even after many years. For astronomy, it is nice not to be constantly be playing with the centre focus wheel and the diopter to try and dial in perfect infinity .

However if you need a very good low light performance, you would still have to sacrifice on size and weight and go for a larger instrument, so something like a 7x50 for example that produce massive exit pupils of more than 7mm. Note: I tested them using my sunglasses and as expected was able to achieve the full field of view with them on after completely folding down the eyecups.

seals 14-psi pressurized dry nitrogen into the optic, for fogproof clarity in any condition - from artic cold to desert heat. The fit of the binoculars when inside is a little too spacious for my liking meaning that they can flop about somewhat, although this is reduced somewhat when you include the neckstrap in with them.

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