Sony NEX EA50 test - depth of field with kit lens - YouTube

After adding a ND filter of course. Check this latest video out.

The nd filter used was not good enough, easiest is to get a quality variable nd filter so you can dial in the needed ND, she also says the Hoya 0.9 ND softened the image and gave a greenish tint, when I look on Amazon for the Hoya filters it seems they are very cheap so you get what you pay for. This is a nice example though about the image degradation when using a inferior filter.

Based on the variable ND filter tests in this video I went with the Genus GL GNDF-67 ND 67mm

Variable ND Filter Shootout - Polariod Genus Lightcraft Tiffen Singh-Ray Heliopan - YouTube

I bought a stepdown ring for my 50mm . Using the filter I was able to go at 0 DB 1/30 shutter and f1.8 outside in bright daylight using the 50mm lens.
http://www.dvinfo.net/forum/attachments/sony-nex-ea50-all-variants/28592d1357333334-sel50f18-test-50mm-genus-variable-nd.jpeg No one in the office that day so I had to do a self portrait. Could and can be a touch sharper in the focus.
The Genus filter is well built and priced. I think I paid $108 via Amazon and Adorama.

Thx for the link Lee, that was a very helpfull video.