User:Macumba/Sandbox

User:Macumba/Sandbox/V-A-Theory

User:Macumba/Sandbox/Mott_scattering

User:Macumba/Sandbox/Astronomical filter

possibly some overlap with Filter_(optics) and Photographic filter, nonetheless there are tons of material out there and, I think, a good overview of filters in astronomical use would be a worthy, encyclopaedic new entry