Tablet will not mount camera via USB

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http://androidforums.com – While on holiday I bought a generic Android 4.0.4 tablet. One thing I want to do is backup the photos from my camera (Fujifilm Finepix F70 EXR) to a USB flash drive via the tablet. However, while the tablet mounts the flash drive so I can copy files to/from it, it will not mount the camera even though the camera itself recognises that the tablet has been connected. Is there some way to make this work? I've seen suggestions to buy an Eye-fi or an SD (camera) to micro-SD (tablet) adapter but that's a bit difficult on the road. Anyway it seems to me that it should just work as is? T (General)