You can do a frame grab, but it will only be at the resolution of your video.
What is your source media, and what are you using the tiff for?
Thanks for the reply: I take stills but I was curious about capturing 3840 x 2160 frames for further editing in LR. One reference suggested TIFFs to export more data. John
Elements does not export tiff's.
Png is the best you can get.
Who is John?
Is that not your middle name 😉
I don't have a middle name.