Air-spaced Triplet, Apochromatic objective with FPL53 glass.
All-New 2014 model 3.5" R&P Focuser:, rotatable design
Intergrated 1:10 fine focus
100 mm Focuser Travel Length
Type of Mount
930mm (Fully Retracted)
1100mm (Fully Extended)
Specification for Apochromatic Lenses
All WO refractors objective are double tested and inspected before shipping to our customer, these telescopes are free of coma and astigmatism.
Since all individual lens surfaces are machine coated sometime it could have visual imperfections which do not affect the objective optical performance.