Mini 4 Pro ND Filter

[NightFlightAlright]

What are the DJI ND filters like?
They seem to be decent value at £40 UK

DJI Mini 4 Pro ND Filters Set (ND8/16/32/64/CPL/UV) 6PCS

The STARTRC Camera Lens CPL UV ND Filters Set For DJI Mini 4 Pro are specially designed to reduce the amount of light allowing the camera to select the correct exposure value. The UV Filter will eliminate ultraviolet rays, whilst the CPL filter will eliminate any harmful reflected light to...

dji-retail.co.uk

And when would you use the CPL filter? All the time except when using a 16 or 32 on sunny days?

Literally all of my NDs are also CPLs. I can not think of a time when I needed an ND that I did not also need or want a CPL.

I suppose an exception might be when stopping down for very long exposures like for hyperlapse at night… otherwise it’s a matter of rotating the CPL for the “most desired” reflections.