I haven't used the Alexa XT and I'm debating internal vs external filters for an upcoming project. I would love to hear thoughts and opinions from ACs, Ops and DPs. Also if I have my facts right.
As far as I can tell:
- no reflections
- light weight
- more space in the matte box
- Hard to access
- have to take the lens off for each filter change
I tend to change ND filters fairly frequently as I prefer to maintain a consistent stop and I'm concerned that the extended time necessary to change a filter would outweigh the benefit of not having reflections.