No, but sometimes yes. It mainly boils down to the default format the computer chooses, and whether that's supported by the camera. A card formatted in a camera will always work in a computer. Some computer formats aren't supported in all cameras. For example, SDXC cards are preformatted with exFAT, which hasn't been licensed by all manufacturers on all models. The cards will work in SDHC-capable devices if reformatted to a compatible format, but you lose the high speed modes.
So I'd tend to format in the camera, unless I know the body can support larger cards when formatted outside the camera.
Last edited by Bushfiva; 23rd September 2013 at 08:17.