One of the most important factors in a telescope is its transmission—the percentage of light that reaches the focal plane. This combined with the deeply textured rubber track that runs around it makes reaching it and turning it with precision nice and simple. As you can see from the table above, they have a wider FOV than the 30x Barska, but their 25x power reduces their FOV compared to others with lower magnifications and is also lower than that of the 100mm 25x binoculars. This is because they weigh quite a bit more and have a much higher power than your standard 8x or 10x 42mm binocular and so any small movement is magnified a lot more by the high power. I've always thought that a pair at x25 with 70-80mm are perfect for picking up fuzzies and let's not forget all of those great clusters.

Lower down near Saturn, I tried for M22 which I’d seen gloriously down in Cornwall just a couple of days earlier with my 7x50 Strathspeys. The case is adequately padded and features a sturdy handle, making it easy to carry the binoculars to various observing locations. Our experienced staff can test refractor lenses up to 120mm aperture and provide a comprehensive 2 page report showing the optical quality and Strehl ratio, plus much more information. Perfect binoculars for travel,bird watching, concerts, football game,climbing, hiking, driving, watching wildlife and scenery.Nevertheless, the SkyMaster 25×70 binoculars remain a highly sought-after tool for exploring the vast wonders of the night sky. If you don't wear glasses, you will most likely just keep these cups in the "rolled-up" position, whereas if you wear glasses, you need to allow for the distance that your glasses will add to the total distance between the ocular lens and your eyes and so you will roll the rubber eyecup down. When purchasing a tripod or other support for the Celestron SkyMaster 25x70s, you should ensure that it can support the binoculars’ weight by a comfortable margin. The SkyMaster 25x70s frequently arrive miscollimated, resulting in a double image when looking through them.

Celestron equips the SkyMaster 25×70 binoculars with a comprehensive kit of accessories that enhance the usability and protection of the binoculars. Celestron’s SkyMaster 25x70's are powerful large aperture binoculars that are phenomenal value for high performance binoculars ideal for astronomical viewing or for terrestrial (land) use - especially over long distances. Rather than pull out all the telescope gear, these binoculars do a fantastic job for planets and stars. The SkyMaster Series binoculars are built to provide years of magnificent views of the world around you and the heavens above.I tried this extreme and this difference did not seem to affect the eye-relief too much, so I do not think that this is anything to worry about. This is simply not true, the relatively low weight and good balance of these (once you hold them right) means that I was easily able to look through them over fairly long periods using nothing more than my hands during the day. After a few minutes I got them both sweetly in view and showing pretty easily, M81 been the easier to see out of the two, but both nicely there none the less.

The diopter adjustment enables users to fine-tune the focus to match their eyesight, providing customized viewing for optimal clarity.All goods are shipped with UPS, DPD, DHL, DX Express, ParcelForce and Royal Mail, we do not use budget couriers, we only ship to UK mainland addresses and do not ship to forwarding agents or PO boxes. All in all I am very chuffed with these binos, which will get much more use looking for fuzzies later on in the year when darker skies arrive back. Celestron Solar Safe filter technology is GUARANTEED SAFE for direct solar observation and has been independently tested by SAI Global Assurance Services. There can be collimation issues in some samples too, although that can be improved using the small adjustment screws underneath the rubber armour. Celestron do not state what materials they use to construct the main chassis from, but as they are exposed, it is easy to see that the bridges are made from a type of metal.