astro.n-minus

OTA

Apertura 90 mm Triplet APO Refractor

Key specifications

Aperture90 mm
Focal length540 mm
Focal ratiof/6
Optical designTriplet APO
Weight4.45 kg

All specifications

Lens coatingFPL-53
Focuser type2.5" dual-speed rack & pinion

About

A 90 mm f/6 FPL-53 triplet apochromat (540 mm) with a 2.5" dual-speed rack-and-pinion focuser, sold as a package with field flattener, hard case and guidescope.

Where to buy

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