Explore FirstLight 127mm f/9.4 Doublet Refractor Telescope (OTA only)
SKU: 99306542242

Explore FirstLight 127mm f/9.4 Doublet Refractor Telescope (OTA only)

Sale price$238.50 Regular price$265.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Explore FirstLight 127mm f/9.4 Doublet Refractor Telescope (OTA only)A 127mm f 9. 4 achromatic doublet refractor with a 2. 5 inch hexagonal dual speed focuser the largest aperture in the FirstLight refractor lineup, sold as an optical tube assembly for observers who already own a mount. The 127mm objective gathers 55% more light than the 102mm model, resolving finer detail on planets and pulling fainter deep sky objects into view. The 1200mm focal length produces high magnifications with standard eyepieces a 10mm

A 127mm f/9.4 achromatic doublet refractor with a 2.5-inch hexagonal dual-speed focuser — the largest aperture in the FirstLight refractor lineup, sold as an optical tube assembly for observers who already own a mount.

The 127mm objective gathers 55% more light than the 102mm model, resolving finer detail on planets and pulling fainter deep-sky objects into view. The 1200mm focal length produces high magnifications with standard eyepieces — a 10mm eyepiece delivers 120x for splitting planetary detail, while the included 25mm Plossl provides a comfortable 48x for finding and framing targets.

The 2.5-inch hexagonal focuser with 10:1 dual-speed reduction is a significant upgrade over the rack-and-pinion focusers found on smaller FirstLight scopes. The fine-focus knob makes precise adjustments at high magnification smooth and repeatable — important for planetary observation and astrophotography. The 2-inch 90° diagonal accepts both 2-inch and 1.25-inch eyepieces via the included adapter.


Key Features
  • 127mm (5") achromatic doublet objective, fully multi-coated
  • 1200mm focal length, f/9.4
  • 2.5" hexagonal focuser with 10:1 dual-speed fine focus
  • 2" 90° diagonal with 1.25" adapter
  • Includes 25mm Plossl eyepiece, red-dot finder
  • Vixen-style dovetail for universal mount compatibility

Ideal For
  • Observers upgrading from a smaller scope — 127mm resolves significantly more detail than 80–102mm refractors
  • Planetary enthusiasts — the long focal ratio and dual-speed focuser extract fine detail at high magnification
  • Mount owners wanting a big refractor — drops onto any Vixen-compatible equatorial or alt-az mount
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99306542242

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 397 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
clutz
Lowell, US
★★★★★ 1
Better than Honda Cabin Filter for Allergies -
Size: 8.3" x 9.3" x 1.3"
Installation took all of 3 minutes. Noticeable improvement in air quality (less allergy response) since installation. Others mentioned a reduction in air flow but have not noticed a change. ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Update (9/2020) Noticeable reduction in air flow. I have needed to increase the fan speed to make the cabin comfortable. I may be switching brands soon. I will pull the filter at 6 weeks and see if it is getting plugged (yikes). //////////// Update (10/2020) I pulled the Bosch filter expecting it to be plugged due to the lack of air flow. I was surprised to see it was clean. There were are few small pieces of stuff in the folds of the filter but only about 10 of them. I held the filter up to the light and then tapped it on white paper to see what would fall out. There was nothing present to explain the extreme loss of air flow. I have used Bosch cabin filters in my other vehicles (not HEPA) with great success. I was hoping to help the allergies of my family but having to run the fan on high to receive any airflow was more annoying than helpful. The noise was irritating and the air flow was still less than the Honda filter I removed. I purchased a new Honda cabin filter and our van is back to normal. I did not realize how much I missed the auto temperature setting. I was setting the temperature about 5 degrees below "normal" to try and keep the temperature consistent, and it was not during the hotter summer months. Unfortunately I am beyond the 30 day Amazon return window so I am not able to return the cabin air filter. :-( This is my first Amazon review that moved from 5 to 1.....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2020
J
Verified Purchase
Jim Russell
Draper, US
★★★★★ 5
Starter
Why did you pick this product vs others?: Good replacement. 
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 20, 2025
W
Verified Purchase
william
Omaha, US
★★★★★ 5
Starter works great
Fits and works great 2005 Mercury mariner 3.0
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
J
Verified Purchase
J G.
Lake Worth, US
★★★★★ 5
Reliable part
The price of this item was a bit of a shock. A good one though. I gave it to my mechanic, he installed it with no problems. Runs just fine. Would buy again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
J
Verified Purchase
Joel sulbaran
New York, US
★★★★★ 4
Entrega a tiempo
Exelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 3, 2025

recommand products