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Explore Scientific 140 mm FPL-53 ED APO Triplet Refractor
The Explore Scientific 140 mm FPL-53 Apochromatic Triplet Refractor is an impressive scope and includes a Starlight Instruments 3" Feather Touch Focuser so you can explore the vast sky with ease.
Explore Scientific has modernized this refractor with high-quality Ohara optics. Using Ohara FPL-53 glass, the refractor gains similar characteristics to the Hoya FCD-100. High refractive index glass, along with the aforementioned optical quality, give Explore Scientific the ability to attain extraordinary advanced chromatic aberration correction. FPL-53 glass is thought to be the best glass ever produced by Ohara. This is a true diffraction-limited APO refractor that is also compact enough to be an ideal grab-and-go viewing instrument.
With an air-spaced triplet optical design that all but eradicates chromatic aberrations, this telescope produces stunning high contrast images using the combination of true Ohara FPL-53 extra-low dispersion (ED) glass and Explore Scientific's EMD enhanced multi-layer coatings on each optical surface.
- Explore Scientific 140 mm f/6.7 FPL-53 ED APO Triplet Refractor Telescope
- True 3" Starlight Instruments Feather Touch Focuser
- Deluxe Carrying Case
- 2" Diagonal with 99% Reflectivity
- Cradle Rings with Losmandy-Style Dovetail
- Finderscope Base
Dimensions & Specifications
Telescope Series: Explore ED Air-Spaced Triplets
Telescope Optical Design: Refractor
Refractor Design: Apochromat (APO)
Telescope Aperture: 5.5" (140mm)
Telescope Focal Ratio: f/6.7
Telescope Focal Length: 910mm
Limiting Stellar Magnitude: 13
Diagonal Included: Yes - 2" Star Diagonal
Telescope Eyepiece(s) Included: No Sold Separately
Finder Included: No Sold Separately
Includes Telescope Case: Yes
Focuser Style: Starlight Feathertouch
Focuser Size: 3"
Telescope Mount Type: No Mount - OTA Only
Telescope OTA Length - Extended: 39"
Telescope OTA Length - Retracted: 33.25"
Telescope Total Weight: 21"
We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.
Limited Warranty is one year, which converts to the Explore STAR Transferrable Extended Life of the Product Warranty when product is registered within 60 days of purchase.
Return & Exchange Policy
At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.
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