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ZWO M68 Sensor Tilt Adapter for 6200MC/MM Pro Cameras
The ZWO M68 Sensor Tilt Adapter is the definitive solution for achieving a perfectly flat field with full-frame cameras, providing an M68x1 threaded connection for ASI6200 series imaging trains. This plate adds only 5 mm of optical path length, providing the fine adjustment needed to eliminate elongated stars in the corners of your images without disrupting critical back focus spacing.
Achieve Perfect Corners with 5 mm of Adjustment
Sensor tilt, a slight misalignment of the sensor plane relative to the telescope's optical axis, is a common issue with fast optical systems, resulting in misshapen stars in one or more corners. This 5 mm thick adapter allows you to make precise, independent adjustments to the sensor's orientation, ensuring the entire focal plane is perfectly perpendicular to incoming light. The result is a uniformly sharp field from edge to edge, a critical step for professional-grade astrophotography.
M68x1 Connection for ZWO Full-Frame Systems
Engineered for the ZWO ecosystem, this adapter provides a robust M68x1 thread. This specific configuration is designed to integrate seamlessly with the ZWO ASI6200MC Pro and ASI6200MM Pro cameras, mounting on the telescope side of the ZWO M68 OAG and 2" EFW so the whole train connects to an M68-threaded telescope.
Complete Your 55 mm Back Focus Imaging Train
For many flatteners and reducers, achieving the standard 55 mm back focus distance is essential for optimal correction. The ZWO M68 Sensor Tilt Adapter's precise 5 mm thickness is designed to be the final component in a common ZWO full-frame imaging train. When combined with other ZWO M68 accessories, this adapter completes the optical path to 55 mm, satisfying the requirements of your corrector while also providing the necessary tilt adjustment.
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What cameras is the ZWO M68 Sensor Tilt Adapter designed for?
This adapter is specifically designed for ZWO's full-frame cooled camera imaging trains, primarily the ZWO ASI6200MC Pro and ASI6200MM Pro models.
How do I know if I need the ZWO M68 Sensor Tilt Adapter?
If your astrophotos show sharp stars in the center but elongated or out-of-focus stars in one or more corners, you likely have sensor tilt. This issue is most prominent in "fast" optical systems (f/5 or lower) and with large full-frame sensors. This adapter provides the physical adjustment mechanism to correct that tilt.
My stars are sharp on one side but stretched on the other with my ASI6200 and f/4 Newtonian. Will the ZWO M68 plate fix this?
Yes, that is a classic symptom of sensor tilt. An f/4 system has a very shallow depth of focus, making even minor tilt obvious. The ZWO M68 Sensor Tilt Adapter is the correct tool to resolve this by allowing you to make micro-adjustments to square the ASI6200's sensor to the focal plane of your Newtonian.
How much back focus does the ZWO M68 Sensor Tilt Adapter use?
The adapter itself consumes exactly 5 mm of back focus or optical path length. Its slim profile allows it to be inserted into most imaging trains without preventing you from reaching your target back focus distance.
How do I integrate the ZWO M68 tilt plate to achieve 55mm of back focus?
The plate's 5 mm thickness is designed to be the final component in a standard 55 mm imaging train. A typical ZWO full-frame setup would be arranged as follows:
Telescope Side → M68 Tilt Plate (5 mm) → M68 OAG (17.5 mm) → 2" EFW (20 mm) → ASI6200 Camera (12.5 mm) → Camera Side.
This combination correctly spaces the camera sensor for most field flatteners and reducers.
What are the thread sizes on the ZWO M68 Sensor Tilt Adapter?
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| SKU |
ZWO-M68-PLATE |
| Thread |
M68x1 |
| Optical Path Length |
5 mm |
| Compatibility |
ZWO ASI6200MC/MM Pro |
| Kind |
Tilt adjuster |
| Motorized |
No |
| Camera-side connection |
Screw holes for ZWO 2" EFW / M68 OAG |
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M68 Sensor Tilt Adapter for 6200MC/MM Pro Cameras
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ZWO 2-Year Limited Warranty
