I'm new to working with RAW images, and I'm capturing simultaneous RAW+JPGs with my new Lumix LX5, and using Bibble to view/process the results.

I'm very surprised that the RAW images taken at 24mm wide 16x9 seem to capture a different (and larger) sensor area compared to the JPGs. The RAW images seem to contain the equivalent of about 100 extra pixels on left and right sides, and a smaller number top and bottom. I say "equivalent", because the actual pixel counts of RAW and JPG are only slightly different, which implies some resizing must be going on...?

JPG: 3968 x 2232
RAW: 3976 x 2238

I guess this small difference is because JPG images must be 16x16 multiples>

The raw image displays noticeable vignetting in the extra pixels, and there's a fair bit of chromatic aberration. I can crop off the 'extra' pixels, but then my RAW image has fewer pixels in it than the JPG, which doesn't feel right. 

I'll try and add samples shortly.


Question: Does this statement make any sense?
Answer: If you FT from time domain, you end up in frequency domain, not in space domain. Of course you can use the relativistic interpretation by dividing a lightyear by a factor of c to end up with - oh, a year! But instead of that FT explanation one could of course just say "it's a figure of speech as a synonym to half an eternity"...