Recently went to Taiwan and brought along my XT-1, 18-55, 23 & 35. End up I use 18-55 most of the time. Have 4 spare batteries and one 2 tb external harddisk for backup. Took almost 3k of photos in mostly raw format. I have 3 SD cards. Backup my photos to my hdd using wifi card reader.
In order not to carry my laptop along to backup my photos, what I have done is get a wifi sd card reader with USB port. I insert my sdcard and backup all my files to my USB external hdd drive. This option is cheaper than getting those wifi hdd.
You can get this brand RavPower Filehub wireless sd card reader for $39.99usd from Amazon. It is also a battery power bank with 3000mah. It can be access using ios or android file manager unlike those wifi hdd must use in-build apps to run.
Can also consider bringing a Western Digital My Passport Wireless Harddisk which allows you to back up on the go without a computer.
See link http://m.wdc.com/en/product/1330
Can also consider bringing a Western Digital My Passport Wireless Harddisk which allows you to back up on the go without a computer.
See link http://m.wdc.com/en/product/1330
I considered this, but I decided against it because SD card readers on external HDDs is still newish tech. Check out the mixed reviews on Amazon and B&H. Seems buggy.
What I did was to backup on my iPad mini 128GB. Since I'd have the iPad with me on the trip anyway, all I needed was the dongle. No laptop, no HDDs. The photos I deemed important I also backed up to my iPhone, in case my hotel room/safe gets broken into. At least the phone is always in my pocket.
This is another option but iPad/iphone can only backup jpeg files but not raw extensions. So if you are shooting in raw you will need bigger disk size. Not forgetting that apple don't allow saving in raw mode. The reason i chose RavPower is becos the review for it is the best of most wifi card.
i've used the xe1, then the black x-t1, now im a user of the GS x-t1. always carry a minimum of 3 batteries with me, memory cards, lenspen, handheld tripod and usually a portable photo printer. used to carry 18-55, 35 around but now i've sold those two and went for the 23mm. amazing glass.