Adapters

Adds 1 inch of focuser back travel Designed for Explore Scientific 2-inch Rack & Pinion Focusers Compatible with Explore Scientific ED APO tel...

Adds Critical Outward Focuser Travel 2-inch Barrel Diameter Designed for Explore Scientific ED APO Telescopes Compatible with 2-inch Rack and Pini...

Adds 2 inches of extension Designed for Explore Scientific 2.5-inch Hexagonal Focusers Maintains rigidity of the optical train Enables focus with ...

Lumicon 2 Inch Thread-in Extension Tube – 2 Inch Eyepiece Push Back threads into 2" telescope eyepieces for small focus extension. Provides an exte...

Adapts 2" focusers and diagonals to use 1.25" accessories Specifically designed for Lunt Solar Systems 2" Blocking Filters Features a non-marring ...

Enables the use of 2" eyepieces on compatible Lunt solar telescopes Threads directly onto the T2 interface of Lunt blocking filters Internal brass...

Rich Simons of Deep Sky Instruments and Optec have jointly developed a new, larger diameter standard spacer for large aperture telescopes. Like th...

Optec-DSI 3.5x24tpi male thread to M72x1mm (male) Takahashi thread. Outside Diameter: 3.82" (97.0mm) Overall Height: 0.74" (18.8mm) Clear Aperture...

The #19830 OPTEC-4300 to female Optec/DSI 3.5" threaded receiver allows any combination of our DSI 3.5-inch spacers to be easily installed on the c...

Connects M54 female and M42 female threaded accessories Adds only 2.0mm of back focus to the optical path M54 side features an internal M48 x 0.75...

Connects M54 Male Threads to M48 Female Threads Adds Only 2.0mm of Backfocus to Your Imaging Train Standard 0.75mm Thread Pitch for Astro-Co...

Connects M54 female threads to M48 female threads Adds only 2.0mm of back focus to your imaging train Standard 0.75mm thread pitch for wide compat...

M54 Male to M54 Male Threading Internal M48 Female Thread for 2" Filters Adds a precise 2.0mm of optical path length CNC machined for rigidity and...

Converts M68x1 Male Threads to M42x0.75 Female T-Threads Standard 0.75mm Pitch for Universal T-Ring Compatibility Maintains a Secure, Non-Flexing ...

Connects M68x1 accessories to M42x0.75 T-threads Adds only 4mm of optical length to the imaging train Male-to-male thread configuration for direct...

Connects M48 (2-inch filter) accessories to M68 focusers M68x1 Male Thread M48x0.75 Female Thread Maintains a rigid, non-flexing connection Des...

Connects M68x1.0 accessories to M48x0.75 components M68 male thread with 1.0mm pitch and 4mm length M48 male thread with 0.75mm pitch and 4mm leng...

Connects M68 Male threads to M54 Female threads Maintains a rigid, flex-free connection Standard 0.75mm thread pitch on the M54 side Black anodize...

Connects M68x1.0 accessories to M54x0.75 components Male-to-male thread design for direct coupling 4mm thread length on both M68 and M54 sides Int...

Connects Pegasus Falcon 2 Rotator to M54 accessories Adds exactly 20mm of backfocus to the imaging train M68x1 Male thread on one side M54x0.75 Ma...

Adds 1.4 mm of back focus M68 x 1.0mm male threads on both sides 4 mm thread length for secure connection Internal M54 x 0.75mm female thr...

Adds critical focus travel for guide cameras Standard 1.25" barrel diameter Male M28.5 x 0.6 filter threads Female M28.5 x 0.6 filter threads D...