cicopo
Contributor
We all use our cameras differently & some try to use 1 card only while others own lots of cards. I happen to have lots but after an event or trip I usually re format them on my computer once all the back ups are done. 4 of my cameras (all considered old & mostly obsolete because of newer models) have dual card slots & I use them. At a radio control event I usually shoot 1200 to 1500 photos per day, and in both large fine jpg & RAW. I can't afford to buy new cards after every event . (it's volunteer work, not paid). I also own a lot of large (& filled) hard drives of back ups.