Its performance with planets and the Moon is quite amazing. This score is reached from a combination of product testing, customer reviews, expert reviews, brand reputation and 3rd party product tests. The disadvantage of the first scope is that it is a cheap $220 Meade Refractor. The Meade Infinity 90mm Altazimuth Refractor Telescope is perfect as a quick take-out for an observing session. MEADE Infinity 90 Refractor Telescope Quality Score – 98%. The Meade Infinity 90mm Altazimuth Refractor Telescope is a quality astronomy equipment component. Meade Infinity 90 is a great telescope for beginners. With a quality score of 9.8, MEADE Infinity 90 Refractor Telescope features as one of the highest ranking products in the Optical Devices category. If you are concerned about deep space more than the Solar System, we recommend a telescope with a larger aperture. The disadvantage of the second scope is that it is a cheap $250 Meade Refractor. Shop online - 100% satisfaction guaranteed! The advantage each scope has to offer is that you haven't bought them yet. Such as the Heritage 130P or Zhumell Z130. Whether the observer chooses to use it for terrestrial or astronomical purposes, the refractor optical design will bring bright and detailed images. Refractors are great scopes, but they don't do inexpensive well.