My favorite bncoiulars that everyone loves when I bring them around to star parties are the Celestron Sky Masters 25 100. I belong to The Chicago Astronomical Society, Adler Planetarium, the Chicago Astronomer, and SWAOG (the Southwest Astronomical Observers Group). These bncoiulars are by far the best bncoiulars I have ever personally used.I have had quite an opportunity to check out many different models in my many decades in amateur astronomy. Yes, these are big and they are heavy (about 10 pounds) but with a decent tripod, this set of bncoiulars are the best for the price anywhere. I purchased them Amazon for $249.00 years ago and the price has been going up over time. They now sell at about $299.95 on Amazon.I help out with the boy scouts and girl scouts in the Chicago area and they all love my bncoiulars! Especially all the adults! I keep them in their case and with the tripod in my trunk you can never know when something interesting might appear in the sky and, they will last a lifetime!