Starizona

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Availabl...

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Availabl...

Extra stepper motor for the MicroTouch Autofocuser. This motor fits the standard Stellarvue focusers that have a 25mm mounting diameter. A larger s...

This version of the Counterweight Set will not work with the CPC-1100. For the correct version, click here. Accurate balance is necessary for the b...

Made of anodized aluminum with female threads.

This bracket allows easy mounting of the ZWO EAF autofocus motor to an Airy Disk triplet refractor.  Tested to work with 85, 96, 106 and 140mm mode...

Extra stepper motor for the MicroTouch Autofocuser. This motor fits Takahashi FSQ-106 and FSQ-85 models with 2-speed focuser. The stepper drives th...

Note that this version of the counterweight set will not work with the CPC-1100 telescopeTo achieve true dynamic balance with a fork-mounted SCT, b...

Designed exclusively for the Askar 131F, this 0.74× reducer reduces the 131F focal ratio to F5.6, unlocking more potential for your imaging possibi...

Self-flattened quadruplet Astrograph which can be used for visual observing and astrophotography. The Askar 131F is a large-aperture telescope des...

Common T-rings use M42 threads and are not compatible with equipment that uses larger M48 threads.  Use this anodized aluminum T-ring to connect a ...

Made of anodized aluminum.

Made of anodized aluminum.

This adapter ring will convert a standard HyperStar C14 into an HD version to work on an EdgeHD telescope.  It simply threads into the existing...

M42 female to M42 male 4.5mm spacer.

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Availabl...

Extra stepper motor for the MicroTouch Autofocuser. This motor fits all current model Sky-Watcher USA refractors using 2", 2.7" or 3" focusers, inc...

Second-generation design optimized for new-style Hyperion 12.5" and 16" models. Available now. The optical design of the Hyperion focal reducer has...

Note that this version of the counterweight set will not work with the CPC-800 telescopeTo achieve true dynamic balance with a fork-mounted SCT, bo...

Use this adapter to connect a camera with female T-threads to a device with male C-threads. Ideal for using T-thread autoguiders such as the Orion ...

The popular Sky-Watcher SolarQuest mount is an awesome little sun tracking mount that works perfectly with many solar telescopes, but some telescop...

Product Description This precision-machined 15 mm M48 Extension Tube is designed to provide an exact increase in optical path length for fine-tunin...

Our extremely popular Filter Slider is now available for the Celestron Origin!  The Filter Slider allows easy swapping of standard 2" filters.  The...

This double ring set offers improved stability over single camera body mounting rings for using a ZWO camera with a DSLR camera lens.  The ring set...

This double ring set offers improved stability over single camera body mounting rings for using a ZWO camera with a DSLR camera lens.  The ring set...

This is a replacement for the secondary mirror mounting plate that is included with the HyperStar 6.

All Starizona motors come with the correct gears and tools to attach them. This product is only intended to be used as a replacement.

Use this female T-thread to male T-thread spacer to extend standard T-thread adapters to achieve the correct backfocus for your telescope. Many acc...

The Starizona SCT Corrector requires the proper camera adapter to achieve the correct lens-to-CCD distance. This ensures the best optical performan...

Extra stepper motor for the MicroTouch Autofocuser. This motor fits the newer Stellarvue focusers (including the 2.5") that have a 33mm mounting di...

Vixen's newer refractors have a fine-focus mechanism that is attached to the existing focuser pinion by a thin metal plate. This plate is a weak po...

This is the top half of the Celestron 11" SCT counterweight set. Use this if you already have a bottom slidebar kit from Celestron or Losmandy. Inc...

This is the top half of the Celestron CPC-925 counterweight set. Use this if you already have a bottom slidebar kit from Celestron or Losmandy. Inc...

To achieve true dynamic balance with a fork-mounted SCT, both top and bottom weights are required. See stock number CWCPC8-CS for the complete top ...

A high-performance sextuplet, air-spaced Petzval astrograph featuring SD glass elements. Specifications Parameters Aperture s...

The Askar 0.74× reducer, specially optimized for the Askar 111F, is designed to unlock a broader and more efficient deep-sky astrophotography exper...

Self-flattened quadruplet astrograph which can be used for visual observing and astrophotography. The Askar 111F has 111mm aperture, 766mm focal l...

Calcium K Module Calcium K (Ca-K) telescopes and filters are used to study the wavelength of 393.4 nm. This emission line is one of two that are pr...

LFPT — Internal Double Stack Module For Lunt LS130MT & LS152 Telescopes. Now with new-generation etalons — every unit individually tested on Lu...

LFPT — Internal Double Stack Module For Lunt LS130MT & LS152 Telescopes. Now with new-generation etalons — every unit individually tested on Lu...

SFPT — Internal Double Stack Module For Lunt LS80MT & LS100MT Universal Day and Night Telescopes. Now with new-generation etalons — every unit ...

LS100FHa — 100mm Front-Mount H-Alpha Solar Filter A 0.45Å tilt-tuned etalon for two purposes: double-stack upgrade for existing Lunt 100mm systems,...

LS60FHa — 60mm Front-Mount H-Alpha Solar Filter A 0.35Å tilt-tuned etalon for two purposes: double-stack upgrade for compatible Lunt systems, or st...

LS50FHa — 50mm Front-Mount H-Alpha Solar Filter A 0.35Å tilt-tuned etalon for two purposes: double-stack upgrade for the Lunt LS60MT, or standalone...

LS50C — Compact Double Stack Filter The double-stack upgrade designed specifically for the Lunt LS50THa 50mm solar telescope series. Now with new-g...

LS40FHa — 40mm Front-Mount Double Stack Solar Filter The double-stack upgrade for the Lunt LS40THa series. Two 0.35Å etalons in series — the tighte...

The finest solar telescope Lunt makes. The finest portable solar telescope commercially available. Nothing else comes close. New-generation etalons...