We can offer you a range of very high quality refractors in this category. These include e.g. our two- and three-lens APM Apo instruments, our astrograph series, available as APM or APM-LZOS models. Equipped with Riccardi reducers / correctors or as a high-end version CNC LW II with Feathertouch extracts. All around excellent instruments that should leave no wishes.
The entry-level APO refractor ED80Sf Porta II features high-grade glass and quality components. Coupled with a medium f/7.5 focal ratio, the ED ?S? series provide a sharp, color-free image of high contrast.
The William Optics ZenithStar 81 mm aperture Doublet APO Refactor is an extremely versatile telescope ideal for both astrophotography and general photography.
Two element APO design with FPL53 glass
Massive 2.5" R&P extension with 1/10 gear reduction
High quality CNC machined ALU tube
With tube clamps, mounting handle and mounting plate
From the beginning, the goal was to create the best possible design for an affordable, small, lightweight, and fast Apochromatic refactor for astrophotography.