Long Perng ED f/6 66mm Doublet Refractor

Long Perng SKU: S400G-A
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Long Perng ED f/6 66mm Doublet Refractor

Long Perng SKU: S400G-A
Regular price $575.00
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Features:

* Advanced 2-element objective lens system minimizes color aberration
* Fully multi-coated optics ensure utmost light transmission
* Finely CNC machining aluminum body and focuser
* Carbon Fiber Tube
* Retractable sunshade
* Accept all 1.25” universal telescope eyepieces

*Free Shipping to USA



Perfect All-Rounder - Long Perng ED f/6 66mm Doublet Refractor

Long Perng ED f/6 66mm Doublet Refractor is a perfect first-time imaging scope capable of capture any celestial target. A quality import from Taiwan that has been tested and approved by Farpoint.

The 500mm focal length yields an f-ratio of 6, faster than standard APO’s. So the ED APO Apochromatic Refractor Doublet Telescope gives you brighter images, a wider field of view, and allows shorter exposures of deep-sky objects. The 80mm air-spaced doublet lens is crafted with one element of FPL-53 extra-low dispersion, "ED", optical glass, which virtually eliminates the effects of chromatic aberration. All air-to-glass lens surfaces are fully multi-coated for maximum light throughput. Baffles inside the optical tube, glare threads in the focuser drawtube, and a retracting lens shade/dew shield eliminate unwanted glare to deliver crisp, high-contrast images. The extremely portable Long Perng 80mm ED APO measures just 15.5" long with the lens shade retracted, making it nice and easy to transport to your favorite dark-sky site for imaging sessions.

Like all EON telescopes, the Long Perng 66mm ED APO Extra-Low Dispersion Apochromatic Refractor Telescope has a beautifully machined Crayford-type which accepts all 1.25” universal telescope eyepieces accessories. The gearless Crayford design provides smooth, zero image-shift focusing. The dual-speed focusing knobs have an 11:1 micro-focusing ratio to ensure you achieve the critical focus you need for your images. The focuser is rotatable 360 degrees, allowing comfortable eyepiece positioning or easy image framing when you're taking pictures.


Specs

    • Optical Design: Refractor

    • Aperture: 66mm

    • Focal Length: 400mm

    • Focal Ratio: f/6

    • Lens: Doublet, ED APO, Fully Multi-Coated

    • Material of Tube: Aluminum Alloy

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