SKU: 99154203855

Explore Scientific 52 Series 40mm Eyepiece (2")

Sale price$9378.00 Regular price$10420.00
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Description

Explore Scientific 52 Series 40mm Eyepiece (2")40mm Focal Length 52 Apparent Field of View 2" Diameter Barrel Fully EMD Multi Coated Optics Argon Filled, Water and Fogproof Slip Resistant Textured Surface Fold Down Eyecup Providing performance at a reasonable price for most beginners, the Explore Scientific 52 Series 40mm Eyepiece produces a very low power in most telescopes, and is a perfect addition to your observation arsenal. Outfitted with a generous 52 apparent field of view, it employs a

  • 40mm Focal Length
  • 52° Apparent Field of View
  • 2" Diameter Barrel
  • Fully EMD Multi-Coated Optics
  • Argon-Filled, Water and Fogproof
  • Slip-Resistant Textured Surface
  • Fold-Down Eyecup

Providing performance at a reasonable price for most beginners, the Explore Scientific 52° Series 40mm Eyepiece produces a very low power in most telescopes, and is a perfect addition to your observation arsenal.

Outfitted with a generous 52° apparent field of view, it employs a flat-field lens system that is treated with their proprietary Enhanced Multi-Layer Deposition (EMD) coatings to produce bright and clear views that are flat edge-to-edge. This lens design makes this eyepiece ideal for averted viewing techniques in which you view dim deep sky objects, such as wispy nebulae, indirectly using the portion of the eye that is most sensitive to light.

This model of the 52° series is offered here with a large 2" barrel that allows the maximum amount of light to pass through to the eye for a more comfortable observational experience with greatly reduced eyestrain and fatigue. The eyepiece is argon-filled and O-ring sealed to be waterproof against condensation and dew and resistant to fogging. A textured collar provides a slip-resistant grip, especially in cold weather or while wearing gloves. A fold down rubber eyecup makes it comfortable and easy to view through, with or without eyewear.

UPC: 811803030084
Focal Length 40mm
Barrel Diameter 2"
Eye Relief 27.1 mm
Field Stop Diameter 35 mm
Apparent Field of View 52°
Dimensions Not specified by manufacturer
Weight Not specified by manufacturer
In the Box
Explore Scientific 52° Series 40mm Eyepiece (2")
  • 2 x Caps
  • Limited 1-Year USA Warranty, Extendable to Transferrable Lifetime Warranty with Registration

All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
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: 99154203855

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Amazon Customer
Boise, US
★★★★★ 5
Looks amazing !
Size: 12, Color: British Tan/Dark Chocolate
Looks amazing. I received lots of compliments the first day I wore them.
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Reviewed in the United States on May 30, 2026
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tom chang
Lexington, US
★★★★★ 5
Good comfort, quality and classy
Size: 8.5, Color: Black/Ivory
’ve been wearing Cole Haan dress sneakers for work and travel, and they strike a really good balance between professional and comfortable. The biggest advantage is how lightweight they feel compared to traditional dress shoes. Most styles have sneaker-like cushioning, so you can walk or stand all day without your feet getting destroyed. The design is also versatile and look polished enough for business casual outfits but still casual enough to wear with jeans. They work especially well in office environments where a full formal shoe feels too stiff or outdated.
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Reviewed in the United States on May 10, 2026
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Daniel C
Omaha, US
★★★★★ 5
New Favorite Work Shoe
Size: 9.5, Color: Black/Ivory
These Cole Haan Grand Crosscourt Daily shoes have quickly become my new favorite work shoes. They’re incredibly comfortable right out of the box, with just the right amount of cushioning and support to get through long days on my feet. I love that they look sleek and professional while still feeling casual enough to wear anywhere. The build quality is top-notch—durable materials and solid construction that make them feel like they’ll last a long time. Overall, these shoes strike the perfect balance between comfort, style, and practicality. I can honestly say I look forward to wearing them every day. Highly recommend for anyone who spends a lot of time on their feet but doesn’t want to sacrifice style.
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Reviewed in the United States on February 9, 2026
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Edward Diaz
Charlottesville, US
★★★★★ 5
Well Made for price and style
Size: 10.5, Color: Black/Ivory
Great fit and very flexible. I also recommend buying shoe savers when purchasing this product. To help with toes wrinkles. The pair itself is stylish and very comfortable. Any purchase of this product will be greatly satisfied.
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Reviewed in the United States on April 16, 2026
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Pierre
Lake Worth, US
★★★★★ 5
Nice shoes
Size: 11.5, Color: Black/Ivory
The are very comfortable, and look great.
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Reviewed in the United States on April 8, 2026

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