Just bought an RX1. As do most, I went back and forth as to whether it made better sense to get the "R" version. Ultimately, opted for non-R as I found no visual evidence that it would produce noticeably sharper or otherwise higher-quality RAW images. So, the journey begins. I ordered a second battery and a 3rd party charger. Although, I'm wondering whether I should grab even a third battery, as I'll be traveling imminently. Also, is there a reasonable consensus on a ND filter, so as to be able to shoot wide open in daylight conditions? I may have already asked, but I forget. Thanks!