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Maintaining perfect focus can be difficult. This is especially true when observing at high magnification or when capturing CCD images. With a single-speed focuser, you will find that a tiny bump will throw out your focus and be a constant source of frustration. Explore as provided, as standard equipment, a ten-to-one, two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus throughout the night.
Provided as standard equipment, Explore Scientific's 2" Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output. This is ultimate importance as each time light travels to a new glass surface some of the original light gathered is lost. An ultra high reflective coating on the diagonal mirror ensures that as much light as possible reaches your eyepiece improving color, contrast and clarity.
Included with the diagonal are a 2" and 1.25" compression ring eyepiece holder and will accept 48mm filters.