Most people don’t use ultra-high ISOs like 25600 on their Fujifilm cameras. But maybe it’s underutilized? Perhaps it’s not appreciated nearly as much as it should be. While I have utilized ISO 25600 and higher on purpose in the past, a couple of recent accidental uses of this ultra-high ISO has made me pause and reconsider if I should be using it more often than I do.

So let’s take a look at some ultra-high ISOs!