The advantages in a nutshell:
- premium apochromatic Barlow lens with 2 groups 4 lens optical design.
- sharp, brilliant image
- no chromatic aberration
- simple to increase your eyepiece’s magnification
- take high-end quality planetary photos
- multi-layer, multi-coating for high contrast
- very high-quality aluminum housing with rubber armored grip
- compression ring to protect your eyepieces
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