Cloud Break Optics

USED - Astro-Tech 4.8mm XWA FMC Eyepiece

USED - Astro-Tech 4.8mm XWA FMC Eyepiece - Main image
USED - Astro-Tech 4.8mm XWA FMC Eyepiece - View 2USED - Astro-Tech 4.8mm XWA FMC Eyepiece - View 3
$196 $280 In stock

Category: Used Gear

This is a used Astro-Tech 4.8mm XWA FMC eyepiece offered by Cloud Break Optics. It is a 100-degree field eyepiece that fits 1.25-inch and 2-inch focusers and is described as waterproof. The eyepiece is in good condition.

  • Brand: Astro-Tech
  • Focal length: 4.8mm
  • Apparent field of view: 100 degrees
  • Barrel compatibility: 1.25-inch and 2-inch
  • Waterproof construction
  • Condition: good, pre-owned
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Hannah F. ★★★★★

I was a little nervous buying used, but this eyepiece arrived in great shape and the 2-inch barrel fits my focuser without any adapters needed. The 100-degree field is a whole different experience — it feels like you're floating in space rather than looking through a tube. Waterproofing is a nice bo

Emily ★★★★★

The 100-degree field of view is genuinely immersive, even in this used copy. I popped it in my Dobsonian to check Jupiter and the edges stayed sharp, which surprised me. Only minor scuffs on the barrel, but the optics are flawless.

Timothy Y. ★★★★★

Even used, the coatings are pristine and the eye relief is surprisingly comfortable for a 4.8mm. It fits both my focusers perfectly and the view snaps right into focus.

Related Products