In reply to malk:
> i do love my omd but not sure the weenie 4/3 16Mp sensor would take much cropping?
> i'm pretty sure my smaller sony alpha outperforms the oly in image quality- important for landscapes..
> will prob keep but not upgrade to mk 2 versions- APS-C for me..
> ps wonder if Ken Rockwell/Blue Straggler ever upgraded from 6Mp -they always argued it was more than enough..
Only you will know what you do with your prints. But I get plenty of cropping on a 12mp D90 and a 20Mp RX100. Although the RX100 doesn't necessarily have more resolution
My 6Mp did really great 18 by 12 inch prints. I have yet to print that large from my newer cameras but feel sure that even cropped from 28mm FOV to 35mm I'd still get a really good 18 by 12 inch print
In reality most of my photos go online or in an 8 by 10 photo book. So except for high iso shots IQ is never an issue.
Out of interest what do you do with your shots?
PS Imaging resource do a handy print size estimator in their reviews. They recon that the sensor you have is good for 36 by 24 inch at base iso. That leaves room for cropping unless you have alot of wall space to fill
http://www.imaging-resource.com/PRODS/omd-em5/omd-em5A5.HTM