Might Mak Mak-cass design brings several benefits which distinguishes the telescope from others. Foremost, it largely reduces aberrations and renders crisp and clear views. Plus its quality fully multi-coated optical components, high precision, high reflectivity of the coating and not easy to oxidize. Make terrestrial objects look more vivid and vibrant, and celestial objects magnificent. Compact & Powerful Maksutov-Cassegrain optical design allows 1000mm focal length folded in 210mm length tube. 70mm aperture allows the greater the amount of light entering the telescope and the higher the resolution.