Scratches on filters
Posted 25 January 2021 - 06:18 PM
Posted 25 January 2021 - 06:28 PM
Couple light scratches will usually have no effect. Typically the area in the scratch is microscopic compared to the OTA light cone footprint at the filter. I guess if you somehow got the focal plane right at the filter, you might notice something -- but that will be hard to do with most eyepieces and cameras.
Edited by ngc7319_20, 25 January 2021 - 06:28 PM.
Posted 25 January 2021 - 06:44 PM
Try using the filter.
If the scratch cuts through the 'vapor deposition' or metallic coating you will have issues.
Posted 25 January 2021 - 06:46 PM