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Astromania 66° 15mm

Astromania
81Very Good
Modified Kellner1.25"Wide Angle

$26.99

(82 reviews)
Amazon's ChoicePrime
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At a Glance

15mm

Focal Length

66°

Apparent FOV

15mm

Eye Relief

1.25"

Barrel Size

Score Breakdown

Value
95
Beginner
58
Planetary
51
Deep Sky
49
Portability
51
Astrophoto
19

Overview

The Astromania 66-degree 15mm eyepiece is a rebranded version of the widely respected "Gold Line" eyepiece, a design that has earned a strong reputation among amateur astronomers for punching well above its price class. At 15mm focal length, this eyepiece sits in a versatile sweet spot, useful for scanning star clusters, framing the full lunar disk, and picking out larger deep-sky objects like nebulae and galaxies. The 66-degree apparent field of view gives you a noticeably more immersive view than standard Plossl eyepieces, which typically offer around 50 degrees.

The four-element optical design with full multi-coatings delivers solid contrast and color accuracy for the price. Blackened lens edges help reduce internal scatter, which matters when you are viewing bright objects like the Moon or Jupiter. Eye relief of 13mm is comfortable for most observers, and the fold-down rubber eyecup makes it usable for eyeglass wearers without much fuss.

At under $27, this is one of the more honest values in entry-level eyepieces. It will not outperform premium options from brands like Explore Scientific or Pentax, but for beginners or as a backup eyepiece, it is a genuinely capable performer.

Key Features

  • 66-degree AFOV provides noticeably wider views than typical budget Plossl eyepieces
  • Based on the well-regarded Gold Line optical design with a proven track record among amateurs
  • Four-element fully multi-coated optics improve contrast and reduce chromatic fringing at this price point
  • 13mm eye relief and fold-down rubber eyecup accommodate eyeglass wearers reasonably well
  • Blackened lens edges reduce internal scatter when viewing bright targets like the Moon or planets
  • Standard 1.25-inch barrel fits virtually all beginner and mid-range telescopes, plus accepts filters
  • All-metal construction feels durable and solid compared to plastic-bodied alternatives in this price range

Specifications

Focal Length15mm
Apparent FOV66°
Eye Relief15mm
Barrel Size1.25"
DesignModified Kellner
Elements/Groups4/3
Series66°
CoatingFully Multi-Coated
WaterproofNo

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Amazon Reviews

5
69%
4
18%
3
7%
2
2%
1
4%
Expansive, Wide Field Views

Astromania sells a complete line of telescope accessories. All are accurately described and fairly priced. I love the 20mm, wide angle eyepiece. You get an expansive field of view and sharp image to the edge of the field of view.

Ron Smith·Jan 5, 2026·Verified
great price

Shipment and service was great

David W. Sherman·Jan 12, 2026·Verified
Decent eyepiece for the money

Pretty decent quality for the money!

Phil·Jan 24, 2025·Verified

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