![]() Since I currently have lots of spare memory I just copy everything from the SD cards into LumaFusion files before starting to edit and haven’t bothered working off an SD again. I make frequent journal type videos of travel and events in my life using clips copied via SD from iPhone, or off the SD from my Osmo action camera or a Nikon P950 for long zoom wildlife shots. I don’t really need to do it this way because I bought the new iPad Pro to have enough memory to store another five years of my own videos on device. Editing short 4K clips from the SD card reader was useable but not exactly smooth. How does your Apple USB C SD card reader respond? I use it for iPad Pro game capture as it seems to fully support DP Alt Mode and gives a full height 4K/60 output. That hub is definitely the best I've used so far. I have tried many hubs and cables with the iPad Pros and the performance varies quite a bit. The SD card interface on that hub just happens to be a good one. Aside from external USB SSD and USB C access, that hub is just as good as a Thunderbolt one. That USB C hub that I use is quite an odd one. I have to be careful about how much time I spend on videos that don't get many views but I do have a list of things I'd like to show with LumaFusion. I'll do a video at some point that does a basic explanation about the video buffer and specifically why LumaFusion does that pause after hitting play, it's on my list of things to do about LumaFusion. I assume this buffering latency is just what LumaFusion does and it isn't being caused by iOS as the same happens on MacOS with LumaFusion and that's regardless of inter-frame or intra-frame sources. Once any movements or changes have occurred it has to rebuild the buffer after the next play command and the latency once again increases. Once in play and you pause the next play command from the same paused position will have a lot less latency, as LumaFusion has already built a video buffer from the previous play but it's not as instant as other NLEs. This is evident with the latency with playing after moving the play head. Interestingly, LumaFusion doesn't seem to pre-buffer where the play head is, only once you hit play. and how good/fast the storage medium and readers/drives are. If it's the pause/latency you're talking about, without testing more I'd guess that LumaFusion will vary that latency depending on the resolution and frame rate of the project and media and where the media is being edited from, internal storage, external SSD, external SD etc. I’m a bit surprised it doesn’t work as smoothly for me using an Apple USB-C SD card reader
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