Its important to note that field of view usually decreases with higher magnification. This is why astronomers typically prefer higher fields of view, less magnification (e.g. the 20x80s are preferred). Storage & organisation Furniture Textiles Kitchenware & tableware Kitchens Lighting Decoration Rugs, mats & flooring Beds & mattresses Baby & children Smart home Bathroom products Laundry & cleaning Plants & plant pots Home electronics Home improvement Outdoor living Food & beverages Christmas Shop Shop by room

No matter whether you are looking for something traditional, something modern or just something completely different, you will find exactly what you are looking for with Frames.co.uk. The 20x80s provide a higher eye relief than the 25x70s and are therefore more comfortable. Focus Type The obvious advantage of a high magnification is that you get a more detailed view. On the flip side, you usually also get a far narrower width or field of view. As this type of observation is mostly based from a fixed point, transportability and ease of carrying are not the biggest concerns, which is a good thing because as you increase the size of the main objective lenses, the overall size and weight of the instrument obviously also increases. The eye-relief is really long, which for those who wear glasses whilst using bins is really important and their field of view is pretty good and up there with other 20x binoculars.

Due to the slow grown nature Siberian Larch is very dense and heavy for a Softwood with a dry weight of 590 kg per cubic metre but this will be higher when the timber is wet. The Celestron Echelon comes with rubber Roll-Up/Down eyecups. They are very large and have a 50mm diameter and because the rubber is quite soft, make for comfortable viewing. Because you have to adjust each eyepiece separately, it does take a little longer to focus on closer objects than most "normal" binoculars that only require you to turn a single often centrally located focus wheel that adjusts the focus on both eyepieces simultaneously. What this all means is that the 20x80s provide you with the ability to focus more closely. Exit Pupil Diameter

At 19.5mm, I would describe theses as having a really long eye-relief, making them an ideal choice should you wear glasses whilst using your binoculars. Ive also physically re-measured my (old)Bresser Hunter 7x50, and no, they havent changed in any way, their still exactly 7mm as stated.The eyepieces on this Celestron binocular feel really strong and whilst it is quite difficult to tell, it looks to me that the eyepiece housing is made from metal. This is excellent as this is the most common part of a bin that gets damaged or broken, yet to save costs many out there are made from plastic. The light that exits these prisms is also not moved out of phase as is the case with roof prisms and thus do not require specialized and rather expensive phase correction coatings to produce the same quality of image. Both pairs are Tripod Adaptable, meaning that you can easily attach them to a Tripod (three-legged base). Don't forget our experienced framers are here to help Monday to Friday 9am to 5:30pm on 0161 962 5573.

At minimum, you are going to want your Eye Relief to be at its lowest,10 mm. The Higher you go, the better the comfort (especially so if you wear glasses). The Exit Pupil is calculated against the dilation of an eye’s pupil once it has become dark-adapted, and for the most part, this number falls between 5 mm and 9 mm (the maximum dilation of a human eye).

Whether its the 20x80s or the 25x70s, the Celestron SkyMasters will provide you with great, crisp and clear views of the night sky.