Pack Not available APO refractors Takahashi FSQ-85EDX apochromatic refractor with ESATTO 3" FSQ85EDXEST3 Be the first to review this product Takahashi FSQ-85EDX with ESATTO 3" is a wonderful compact and powerful 85mm f/5.3 Petzval quadruplet apochromatic refractor that, thanks to ESATTO 3" focuser and PLUS rings, is perfect for wide-field astrophotography also with large sensor cameras. View