Long Perng 66mm ED APO Apochromatic Refractor Telescope

Experience the precision of the Long Perng 66mm Refractor, designed with a 400mm focal length for a fast f/6 focal ratio, outperforming standard APOs. This high-speed ED APO doublet offers brighter images, a broader field of view, and shorter exposure times for deep-sky objects.

Equipped with an 80mm air-spaced doublet lens crafted with one element of FPL-51 extra-low dispersion (ED) glass, it virtually eliminates chromatic aberration. Fully multi-coated lens surfaces and interior baffles maximize light throughput and minimize glare, ensuring sharp, high-contrast views. Compact and portable at just 12" with a retracted lens shade, the Long Perng 66mm Refractor is ideal for transport to dark-sky sites for imaging sessions.

Long Perng 66mm Refractor Advanced Focuser Design

The Long Perng 66mm Refractor features a beautifully machined, 2" Crayford-type focuser that accepts both 2" and 1.25" eyepieces, providing smooth, zero-shift focusing. Its dual-speed focusing knobs, with a 10:1 micro-focus ratio, ensure critical focus for precise imaging. The focuser rotates 360 degrees, allowing flexible eyepiece positioning or easy framing adjustments for astrophotography, complete with a built-in focus lock knob and a Brass Compressing Ring adapter.

Engineered for those passionate about astrophotography and stargazing, the Long Perng 66mm Refractor offers outstanding optical quality and user-friendly features, ready to elevate your cosmic observations and images with unmatched clarity and control.

Long Perng 66mm Refractor Available now – bring the universe into sharp focus with this portable, premium refractor telescope.