The celestron ultima 80 angled spotting scope offers a step up in aperture from the 65mm bringing in more light therefore allowing you to watch your subject in its natural environment even once the sun has set the series has been designed to perform well in a range of viewing situations making it a great all round optical instrument for everyone the 80mm refractor features a 45 degree viewing angle and excellent multi coated optics packed into a portable and durable refractor design and it co