Originally posted by bronsono Using Pentax k-3. I recently purchased a flu card to allow me to share photos when I'm away from my desk top. I typically shoot in raw then process and export in jpeg via lightroom. I take a lot of "snapshots" at family functions and people are always saying "send me that picture". I often forget who wanted which pic. So I am still recording images in raw to my 1st card and saving jpeg to the flu. I'm now able to send pictures directly to other people's phones or share them on social media easier. My only question is "does saving to 2 separate cards effect how fast the camera is able to take pictures at all"?
JPEG processing takes basically no time - probably faster than saving RAW. Just make sure to switch of image enhancement filter that are applied to JPEG.
Saving to two cards can take longer than saving to a single card only, but first you have the in camera buffer and after several shots saving gets slower, but not incredibly slow. Just try it out and it will be fine.