We currently do not have a specified peak-to-peak periodic error value or periodic error period in seconds for Harmonic I.
Our engineering team has performed tracking accuracy tests to evaluate the unguided tracking performance. One of the tests was conducted with a Nikon D810a and a 300mm lens using a 15-minute exposure, showing the star trail deviation during tracking.
Test result explanation:
The red arrow indicates the reference tracking direction. The deviation of the star trail to either side of the red arrow represents the tracking deviation observed during the test.
Please note that this test result is provided as a practical reference for tracking performance and is not a specified periodic error value.
Sep 29, 2026