ASToptics 1.25″ Helical Focuser (M36)
Professional Precision Focusing for Astronomical Applications
The ASToptics helical focuser represents an ideal solution for precise focusing of astronomical instruments. This high-quality focuser features M36x1 threading and offers output connections for both 1.25″ eyepieces and T2 attachments. Manufactured from black anodized aluminum, it guarantees long-lasting durability and excellent weather resistance.
The focuser provides a 10mm focusing range, enabling extremely fine and precise focus adjustment. Its compact construction weighing only 93 grams doesn't burden your telescope while providing stable and reliable focusing for the most demanding observations.
Key Applications and Uses
The helical focuser finds application in numerous areas of astronomy. It's particularly suitable for precise focusing when your telescope's original focuser lacks sufficient quality or precision. It excels in lunar and planetary imaging with compact cameras, where image stability is crucial. The focuser also serves as an essential component in amateur telescope construction.
Primary Benefits
- Eyepiece or camera doesn't rotate during focusing - critical for planetary photography
- Locking screw allows precise position fixation without unwanted movement
- Universal T2 and 1.25″ connections ensure compatibility with wide range of equipment
- Smooth helical mechanism for ultra-fine focus control
- Lightweight yet robust aluminum construction
Technical Specifications
- Thread: M36x1
- Eyepiece connection: 1.25″
- Additional connection: T2
- Focus range: 10mm
- Weight: 93 grams
- Material: Black anodized aluminum
- Type: Helical focusing mechanism
Perfect for Demanding Observations
The ASToptics helical focuser is an ideal choice for astronomers who demand maximum focusing precision and image stability. Thanks to its quality construction and thoughtful design, it represents a reliable partner for years of astronomical observation. Whether you're engaged in lunar photography, planetary observation, or general deep-sky work, this focuser delivers the precision control you need.
Enhanced Stability and Control
The helical design ensures smooth, backlash-free focusing without the image rotation common in standard rack-and-pinion focusers. This makes it particularly valuable for astrophotography applications where maintaining precise framing is essential. The locking mechanism allows you to secure your perfect focus position, preventing drift during extended observation sessions.
