We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black anodized metal cylinder with threaded ends and brass compression ring

Celestron

Celestron SCT to 2 inch Adapter

SKU CH-9503-1QB9H

Connects Schmidt-Cassegrain telescopes to 2" eyepieces and accessories with a secure brass compression ring

  • Adapts SCT telescopes to accept 2" eyepieces for wider viewing options
  • Precision-machined aluminium construction with black anodized finish for durability and corrosion resistance
  • Brass compression ring with set screw grips accessories securely without marring surfaces
  • Threaded connection attaches directly to Schmidt-Cassegrain or Maksutov-Cassegrain telescopes
  • Compatible with standard 2" diagonals, eyepieces and photo adapters for astroimaging

Telescope Adapter for 2" Eyepieces

The Celestron SCT to 2" Adapter connects a Schmidt-Cassegrain or Maksutov-Cassegrain telescope rear cell to standard 2" diagonals, eyepieces and photo adapters. It is machined from aluminium with a black anodised finish and uses a brass compression ring secured by a set screw to hold accessories without marring them. The threaded connection attaches directly to the telescope's rear thread.

For Owners of Compatible SCT and Mak-Cass Telescopes

Astronomers who want to use larger 2" eyepieces for wider fields of view and brighter images, or who wish to attach a camera for astroimaging, will find this adapter essential. It is not intended for telescopes that do not have the standard SCT rear thread, for focusers that accept only smaller barrel sizes, or for setups requiring an integrated focal reducer or field flattener.

Threaded SCT Rear-Cell Connection

The adapter mates to the telescope via the standard SCT rear thread, providing a secure, tool-free attachment point for any 2" accessory. This single interface determines whether the part fits your optical tube; verify that your telescope presents the matching external thread before purchasing.

How it compares

Measured against everything we stock in Binoculars, Scopes & Sights, at today’s prices. Recalculated every night.

Price $31.99
Cheaper than about 76% of the 1,401 comparable items (median $93.99).

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box and do I need any extra parts to attach it to my Celestron SCT?

The adapter threads directly onto the rear cell of compatible Celestron Schmidt-Cassegrain or Maksutov-Cassegrain telescopes. No tools or additional couplers are required for that connection.

How do I know this adapter fits my specific Celestron SCT model?

It is designed for the standard rear-cell threads used on Celestron SCT and Maksutov-Cassegrain telescopes, providing a precise, secure fit on those models.

What does the 2" opening actually give me when I am at the telescope?

It accepts standard 2" diagonals, eyepieces and photo adapters, allowing wider true fields of view, brighter images and direct camera attachment for astroimaging.

More in Binoculars, Scopes & Sights

Similar items