Automatic tilt adjustment: The Wanderer ETA M54 arrives

The Wanderer ETA M54 Electronic Tilt and Back Focus Adjuster is a highly advanced device designed for astrophotographers who require precise control over tilt and back focus adjustments. One of the most challenging aspects of astrophotography is maintaining a perfectly aligned optical train, especially when dealing with fast focal ratio systems and large-format cameras. Manual adjustments can be not only time-consuming but also imprecise, especially when performed in the dark or under remote operation. The Wanderer ETA M54 solves these issues by offering a motorized, electronically controlled solution that is both highly accurate and user-friendly.

Automatic tilt adjustment: The Wanderer ETA M54 arrives

The ETA M54 was engineered to streamline this process. It uses electronic control to adjust tilt and back focus, allowing astrophotographers to make precise changes without physically handling the equipment. This electronic control is especially valuable when conditions make manual adjustments impractical, such as when the equipment is mounted on a tall pier or housed in a remote observatory. The ability to make fine adjustments from a distance reduces the risk of disturbing the setup and ensures that image quality remains consistent throughout the session.

What sets the ETA M54 apart is its unique structural design. The unit is only 5mm thick when mounted directly to the camera-side device using screws, such as an Off-Axis Guider (OAG). This slim profile minimizes the amount of back focus consumed, which is crucial when working with optical systems that have tight back focus requirements. Despite its compact size, the unit is sturdy and designed to prevent any light leakage. The total weight of 470 grams means it adds little to the overall load, which is important for maintaining balance in portable or automated setups.

Precision is at the core of the ETA M54's design. It features three independent adjustment motors, each equipped with high-precision encoders. This setup allows for fine adjustments with a resolution of 0.3 microns per step and an adjustment range of 1.2mm. The positioning accuracy of up to 2 microns is more precise than traditional manual tilters, making the device suitable for systems where accuracy is critical. These features are particularly important when working with fast telescopes, where even small deviations in tilt can introduce noticeable image distortions.

One of the practical aspects of the ETA M54 is its adaptability. It can be directly mounted to an OAG or camera using screws, which allows it to maintain a 55mm back focus in most configurations. For users who need a threaded connection, an optional adapter is available. This flexibility means that the ETA M54 can be integrated into a variety of astrophotography setups without requiring custom parts or modifications.

The device also performs well in cold environments. Tested to function reliably at temperatures as low as -20°C (-4°F), it is suitable for use in winter conditions or at high-altitude observatories where temperatures can drop significantly during the night. This low-temperature resistance ensures that the electronic components remain operational, reducing the risk of failure during critical imaging sessions.

Wanderer ETA M54 specifications

• Power Source: USB (5V 0.5A)
• USB Type: USB 2.0 Type-B (cable included)
• Weight: 1.04 lbs (470 grams)
• Telescope Side Connection: M54 Female Threads
• Camera Side Connection: Screws (default) or threaded (adapter required)
• Payload Capacity: 6.6 lbs (3 kg)
• Back Focus Usage: 0.2 inches (5 mm) when directly mounted to camera-side devices using screws
• Tilt Adjustment Range: 0.05 inches (1.2 mm)
• Motor Resolution: 0.000012 inches per step (0.3 microns)
• Positioning Accuracy: 0.00008 inches (2 microns)
• Operating Temperature Range: -13°F to 122°F (-25°C to 50°C)
• Construction: Dual-layer nested structure, light-leak prevention
• Compatible Accessories:
• M54 female adapter for camera/OAG/filter wheel connection
• M54 male to male adapter (0.05 inches extension), suitable for Takahashi Epsilon 130/160/180
   

How Wanderer ETA Automatically Solved a 3-Year Tilt Problem on a Takahashi 180ED in Just 10 Minutes

5mm thickness M54 electronic tilt and back focus adjuster

The ETA M54's build quality reflects careful engineering. It consists of nearly a thousand curved surfaces and over fifty components, each selected and arranged to ensure stability and durability. The design is optimized to maintain structural integrity even under continuous use, which is essential for astrophotographers who rely on consistent performance over long periods. The device also incorporates design elements that help it blend seamlessly into professional imaging setups, avoiding any unnecessary visual distractions.

Software control is another important aspect of the ETA M54. The device integrates with WandererEmpire software, which provides an intuitive interface for controlling tilt adjustments. This software allows users to make fine adjustments remotely, with visual feedback on the current tilt configuration. This capability not only saves time but also reduces the risk of errors caused by manual intervention.

The device is powered via USB, requiring a 5V input with a current of 0.5A. It uses a USB 2.0 Type-B connection, and the package includes a one-meter cable, providing ample reach for most setups. The low power requirements make it compatible with common power sources used in field setups, and its efficient power consumption minimizes the risk of battery drain during extended sessions.

To accommodate various telescope and camera combinations, the ETA M54 comes with a range of accessories. These include an M54 female adapter for camera-side connections and an M54 male to male adapter for extending the connection by 1.2mm, which is particularly useful for Takahashi Epsilon telescopes. The package also contains mounting screws of different lengths, ensuring compatibility with different setups without the need for additional hardware.

In practice, using the ETA M54 can significantly reduce the time needed to achieve optimal focus and alignment. By allowing for remote adjustments, it eliminates the need to physically manipulate the setup, which can disturb calibration or lead to misalignments. This feature is particularly useful during automated imaging sessions where consistency is key.

Overall, the Wanderer ETA M54 Electronic Tilt and Back Focus Adjuster offers a practical solution for maintaining precise alignment in astrophotography setups. Its combination of electronic control, compact design, and robust construction makes it a valuable tool for both amateur and professional astrophotographers. The ability to integrate seamlessly into existing configurations without requiring significant modifications makes it a versatile addition to any imaging system. Whether used in a permanent observatory or a portable setup, the ETA M54 helps maintain image quality by allowing precise, controlled adjustments without the challenges associated with manual tilt correction.

World's first automatic tilt adjuster: Wanderer ETA, another milestone for amateur astrophotography?

Buy the Wanderer ETA M54