Why is the Fuji RAW file bigger than Sony and Olympus?

BillyInya wrote:

I am not sure myself but dpreview say in their review of the X-Pro1 :

"There are several points to be made here. Firstly, the X-Pro1 shows visibly higher resolution in this chart test than a conventional 16MP Bayer-type camera such as the Nikon D7000, or even the Sony NEX-5N (which has a particularly weak AA filter). In fact, in terms of resolution it's very close indeed to the 24MP Sony NEX-7 or the Sigma SD1"...

I am not sure whether file sizes are in relation to this, I can't see how they can be, but there's no doubt the X-Trans sensor has superior apparent resolution than the cams you mention, and in controlled lab test dpreview have conducted also have found this.

Embedding stills for TVC work X-Trans images need the least prep than most other cams with the exception of the monster Canon and Nikon full frame cams. This might have something to do with it too.:-D

Whatever the reason I am sure glad I have an X-E1, it has blown me away in every respect.