The sky watcher skymax 127 az 127mm 5 f1500 synscan go to maksutov cassegrain telescope is a larger version of the skymax 102 providing a massive 55 more light gathering power and packing an even more powerful punch than its smaller cousin for medium to high power work the large 127mm maksutov optics and fully computerised mount offers accurate go to technology and is complete ready to use package the go to mount with synscan hand controls allows you to easily find and enjoy the night