Existing set up: Telescope attaches to field flattener, and field flattener to black tube which fits as a sleeve over the 2"silver tube then to adapter, and finally to camera. I also have a 1.25" adapter (see below) but since the SA100 is desgned to fit onto an eyepiece, and there is no eyepiece, I have nothing to attach it to!
Should the grating fit here, where my light pollution filter normally goes? This has an internal thread so would require me getting a further adapter, or making my own
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