Farpoint SSF-316 Solar Filter — 311–316 mm Telescope Tube D Size Dovetail Select the variant that matches

Select the variant that matches the Heavy-Duty Wheeley Bar you already own (or are buying alongside this add-on)

going back and forth between adjustments to push collimation to the tightest possible precision

Large APO Refractors: Explore Scientific 152mm f/8 ED APO Triplet

Any standard 2" astronomy eyepiece or accessory — the same 2" barrel format used across visual gear

Farpoint SSF-316 Solar Filter — 311–316 mm Telescope Tube D Size Dovetail Select the variant that matchesThe Farpoint SSF 316 Solar Filter is designed for telescopes with 311316 mm tube outer diameter. ISO 12312 2 certified solar film blocks 99. 999% of harmful UV and IR radiation, delivering a sharp, natural color white light view of the Sun, sunspots, transits, and partial eclipses. SSF 316 is a specialty SKU in the Farpoint SSF line, sized between grid points to provide tighter fit for specific telescope clusters. Specifications Fits telescope tube