Before the KK update I could use ES File Explorer to "see" what was on the USB stick attached to the OTG cable and do stuff with the files on there etc.
Now I can no longer see it to do anything with the files. But I use Nexus Media Importer on my Nexus 7 to do a similar thing so I installed that on my G and that DOES allow me to see the USB. Not sure whether you will see the same effect with your camera but I suspect you will.
I can't understand why this has been changed, just seems like another way to try to force people to use the cloud. I use cloud storage but there are certain things I just want to store locally no matter what Google thinks is best for me!
Sent from my Nexus 7 using Tapatalk
True, perhaps they want us to use cloud storage but sometimes, as in my case, in case my desktop pc breaks, I would like to use my phone to access my external HD.