I used to travel with a laptop and and external drive. If I had internet access, I would upload photos to the cloud; otherwise, I backed them up to the external drive. I'd prefer not to travel with my laptop. I will likely bring my iPad Pro.
I've also used the Sanho drive in the past - plug in an SD card, press a button and the images get backed up. I've checked out the WD Wireless Passport Pro. This might be a possibility.
Obviously I can buy a few more SD cards. I will be suing my Fuji XT-2, shooting both jpg and RAW.
How do you back up your photos while on the road for 3-4 weeks, and for the sake of argument, let's say you won't have access to the internet for the duration?
I don't.
I was just on the road for six weeks and made a couple thousand photos with my Leica CL and another thousand or so with iPad Pro and iPhone 8 Plus. They were all fine just sitting there in the various device's storage.
I've never lost a digital capture on the road anyway, all my cards and cameras over the past twenty years since I started working with digital capture have been 100% reliable. When I was out shooting on paid jobs for extended times, I'd often make backups before getting home, but that was just a matter of business practice, not necessity.
The requirement of backup for your travel shooting is one of those silly myths that's come down from when digital capture was new and film users didn't trust the new technology, it wasn't what they were used to. In those days, cameras weren't necessarily quite as reliable and cards did occasionally fail.
That was a long time ago. No quality cards or cameras made in the last decade are so unreliable, in fact I'd wager I lost far more film exposures to mishap and circumstance in my film only years travel than I've ever lost with digital capture.
Just go take photos and handle your cards carefully when you take them out of the camera. Whatever you roll over from camera into iPad Pro for quick look and processing is automatically double protected, of course. (And of course, if doing photography is your reason for buying an iPad Pro, buy the one with the largest storage capacity so it has plenty of space to work with. Mine is 256G capacity, if I were buying today I'd buy 512G. It's worth it.)
The iPad Pro has become my most used computer, and the only computer I carry when traveling. It does a terrific job for that.
G
