High-performance 80 mm triplet apochromat with aluminum tube and Alu 2’’ R&P focuser. Three-element apochromat with two air gaps HOYA FCD-1 glass High-quality 2.0’’ focuser with 1:…

High-quality triplet apochromat (102 mm) with aluminum tube and precision Alu 2’’ R&P rack and pinion. Three-lens apochromat with two air gaps HOYA FCD-1 glass High-quality 2.0’’ r…

80 mm high-performance triplet apochromat with aluminum tube and precision HEXAFOC 2.5’’ rack. Three-lens apochromat with two air gaps HOYA FCD-100 glass High-quality HEXAFOC 2.5’’…