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Explore Scientific FPL-53 Series 165mm f/7 Triplet Refractor

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  • Regular price $10,999.99

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  • Aperture: 165mm (6.5")
  • Focal Ratio: f/7
  • Focal Length: 1155mm
  • High-performance astrograph using excellent FPL-53 optics


Explore Scientific FPL-53 Series 165mm f/7 Triplet Refractor

The ED165 FPL-53 from Explore Scientific is a superb astrograph level apochromatic refractor, designed for astrophotography from the ground up. It operates at a fast f/7 focal ratio while at a 165mm aperture, and utilizes Ohara FPL-53 optical glass to ensure the utmost in optical quality and clarity. The apochromatic design ensures the total absence of all chromatic aberration, further clarifying the image for your enjoyment. Look up into space and capture clear, high-resolution images of the farthest reaches with the ED165 FPL-53! 

This superb telescope has been packaged with: 3 Inch Starlight 'True' Focuser; Cradle Ring with Handle and Vixen-Style Dovetail Plate; Deluxe Carrying Case; 99% Reflective 2-inch Diagonal; Explore Finder Scope Base installed on scope.


Aperture165 mm (6.5")
Camera/Eyepiece Connection2"
Dawes Limit0.7 arcseconds
Focal Length1155 mm
Focal Ratiof/7
Free ShippingYes
Glass Type53
Hightest Magnification330x
Light Gathering Power556x
Limiting Magnitude14.8
ManufacturerExplore Scientific
Optical DesignTriplet
Tube Diameter165mm
Tube Length1041mm
Tube Weight27.6 lbs
WarrantyLifetime Warranty


  • ED115mm FPL-53 OTA
  • Cradle Ring with Handle and Vixen-Style Dovetail Plate
  • Deluxe Carrying Case
  • 99% Reflective 2-inch Diagonal
  • Explore Finder Scope Base