OM-D "changing" RAW files in Viewer 2?

Started Feb 21, 2013 | Questions thread
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OM-D "changing" RAW files in Viewer 2?
Feb 21, 2013

My understanding was that an RAW/ORF file was unaffected by camera settings, and that using a conversion program (in this case Viewer2) to convert and save as a TIFF without implementing any changes would act the same as running RAW files through ACR in Photoshop for Nikon/Canon/Sony etc ... you'd get all the data unmitigated in the conversion.

I just did, and lo and behold, here are two TIFF files converted that way but they are different.  I want the RAW/ORF files converted, but not changed. What am I doing wrong?

EXIF data shows these two center crops from the RAW/ORF > TIFF are the same for aperture/speed, WB and ISO... the only difference is in-camera JPEG settings.

 BHPhotog's gear list:BHPhotog's gear list
Olympus OM-D E-M5 Olympus M.Zuiko Digital ED 40-150mm 1:4-5.6 R Olympus M.Zuiko Digital ED 12-50mm 1:3.5-6.3 EZ Epson Stylus Photo R1900
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