Explore Scientific 82 degrees 6.7mm Eyepiece - 1.25" WO accessories The maksutov optical design also

The maksutov optical design also simplifies the collimation (alignment of the mirrors) with only the primary mirror to adjust where other designs require 2 mirrors to be aligned

your lens does not need to the Canon as long as the     bayonet type is correct so other brands such as Tamron or Sigma are compatible

One focuser knob even includes an integrated thermometer to help you track small temperature changes that might affect focus during your imaging sessions

For people living in very light polluted areas

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Explore Scientific 82 degrees 6.7mm Eyepiece - 1.25" WO accessories The maksutov optical design alsoExplore Scientific 1. 25" 82 Series Argon Purged Waterproof Eyepiece 6. 7 mm Explore Scientific 82 Series eyepieces, with their 82 degree apparent field of view, immerses you in a very comfortable ultra wide field that naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that may not have become