1.25 inch filter adapter for Sky Quality Meter SQM-LU-DL | Unihedron

Want to know how much of the sky background above your house comes from a certain color or type of lighting? With this SQM-LU-DL filter adapter, you can attach a 1.25-inch filter to your meter lens, so you can measure not only across the entire range, but also through a filter.

The adapter is intended for the Sky Quality Meter SQM-LU-DL. You put a 1.25 inch filter in it, for example from the Color filters for the Moon and Planets or our light pollution filters.

First, check which model of Sky Quality Meter you have, because this adapter is for the SQM-LU-DL. When comparing, always measure once with and once without the filter, shortly after each other and under the same conditions; otherwise, the difference will be insignificant.

If you have an SQM-L, SQM-LE or SQM-LU, please check the filter adapter for those models.