SIGMA QUATTRO DP2 Resolutions : 2X VERSUS S-HI RESOLUTION

There have been times my fellow foveista, that I've pondered the quality losses of saving X3F files @ double resolution.

Now there is another choice, S-Hi.  Presumably this takes the data and produces as large an image as possible without quality loss.

The first image is @ double resolution 10.8K X 7.2K pixels!  Yes.  That's big.  

The second is @ S-Hi. 7.7k X 5.1k.  sooo 1.5X actual size, an also a fairly whopping size.

call me quazy but i think blogger resized them a little so here are full sized crops.  First 2x.  For this I used mac Preview, so that program may have messed with the files a little, too.

and now for S-hi:

clearly this source image has problems, but I think double and s-hi are fairly similar.  next time I'll do a still life.