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When using an Orion Collimating Eyepiece, if the reflection of the
secondary mirror is completely centered in the crosshairs, but the reflection of the secondary mirror is not totally centered in the reflection of the secondary mirror holder, is this an issue? When I look at the secondary mirror holder reflection, I see a glassy reflection of light on its edge, which makes the reflection of the secondary mirror look like it is not centered in the reflection of the secondary mirror holder. When I cover the secondary mirror holder with my hand, the glassy reflection of the secondary mirror is obscured and the secondary mirror looks centered, Should I ignore the reflection of the secondary mirror holder? Also, when I put a piece of white paper in the tube covering blocking the reflection of the primary mirror, the secondary mirror looks more or less centered in the focusing tube. It is difficult to see if it is totally centered due to viewing angles. Comments? Bruce |
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