I purchased a faster SD card for the camera and find it has a big impact on the number of exposures I can take during totality is it shortens the time to save the burst mode images. Also, I find that the time to save is shortest when the SD card is empty. As the card fills, the number of images I can save during a given time decreases so I need to be sure to clear the memory as part of the setup.
What card speeds do you mean? Right now, I have a 16 GB card rated at 60 MB/s. Do you think I would see a significant improvement by investing in a 90 MB/s card? Is it faster to put 15 GB on a 64 GB card than on a 16 GB card?