First test using ZWO 850 IR pass filter on Plato and Alpine valley.
The question was: is the DBK sensitive at infrared wavelengths that the filter allows through and so can image during daylight hours?
YES!

Skymax 180 7″ Maksutov-Cass at f15
Imaging Source DBK 21AU618.as 4x60s AVI 60fps (not always achieved)
Captured with FireCapture
Processed in AutoStakkert, Photoshop CC, Lightroom
19:38 – 19:42 UT Seeing: III but low altitude
9.41 days

ZWO 850 filter transmission characteristics