When looking at the technical data, 80mm aperture may not look too impressive. However, during astronomical and terrestrial observations the impact of the 31% more light gathering power in respect to a 70mm aperture refractor are easily visible.
This short focal ratio refracting telescope from Bresser is an ideal instrument for those who want a quick "grab and go" instrument for wide field deep sky observation. This diminutive scope really packs a deceptively large punch for deep sky observation
Excellent for entering into the hobby of astronomy: 90mm aperture delivers 200 times more light than the naked eye. The MESSIER AR-90 gives you images that are many times brighter than the instrument Galileo Galilei was using for his famous explorations almost 400 years ago.