Is this as good of a scan as I should expect? Is the roughness a result of noise? Can I avoid or reduce that before, during or after the scan?
Hello @RikB.Film
For such object the result is kind of expected, as it is basically featureless. Photogrammetry needs to have some features around the object to be reconstructed properly. On some parts it is also shiny, which is not ideal for photogrammetry, too.
In such cases you need to provide some texture over the scanned object. Like in this example: Using Scanning Spray to Scan Shiny Objects | Tutorial
If you can’s use the spray, you can also project some texture over the object.