Part of their Astro T2 modular accessory system, you can use the Alpine Astronomical Baader FR-4 Focusing Ring Collar to set and lock a custom insertion depth for just about any 1.25" eyepiece. By choosing a specific insertion depth, you can make the eyepiece parfocal with other eyepieces or gear, such as with imagers.
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Key Features
- Part of the Astro T2 Modular System
- Fits Most 1.25" Eyepieces
- Allows Specific Insertion Depth
Part of their Astro T2 modular accessory system, you can use the Alpine Astronomical Baader FR-4 Focusing Ring Collar to set and lock a custom insertion depth for just about any 1.25" eyepiece. By choosing a specific insertion depth, you can make the eyepiece parfocal with other eyepieces or gear, such as with imagers.
More DetailsAlpine Astronomical Baader Overview
Alpine Astronomical Baader Reviews
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