Telrad Riser Base (New Version) Planisphere 2 system allows for shorter

2 system allows for shorter exposure times compared to traditional f/10 astroimaging

Back Focus: Adjustable

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Telrad Riser Base (New Version) Planisphere 2 system allows for shorterThe Riser Base is available in nominal 2. 5" and 4" heights. Used in conjunction with the existing mounting base, it acts to offset the sight from the main tube for easier viewing. Select 2. 5" or 4" Riser base. These are the newer version of the risers that are injection molded.