I just brought a helix. But when I try to use the parallax knob, I find some issues.
When I turn the knob to the minimum distance, the scale cannot be aligned with 10m, but when I turn the knob to the maximum distance, I may turn the knob beyond infinity.
I tried removing the knob and repositioning it, but I found that it is not removable and there is no information on the Internet about removing it.
When I turn the knob to the minimum distance, the scale cannot be aligned with 10m, but when I turn the knob to the maximum distance, I may turn the knob beyond infinity.
I tried removing the knob and repositioning it, but I found that it is not removable and there is no information on the Internet about removing it.