After completing this test, I finally decided to switch from my Canon 60D to the mirrorless Sony NEX-6 camera indefinitely for several reasons.
1) 1080p60: This frame rate is such an asset. This entire video was shot in 60p which worked great with the steadicam. The camera just floats seamlessly through the environment.
2) Size: The size is great for run and gun. The steadicam merlin is weighted at max 6 pounds. The 60D plus a wide lens weighs about 4-5 pounds, which is fine but can be a strain on your arm after a while. The NEX-6 weighs only 2 pounds with a wide lens, which is comfortable and easy to balance. The NEX-6 is way less clunky than the 60D and is much less invasive if you're trying to take candid shots.
3) Adaptability: The Metabones speedbooster is not designed for EF mounts. The NEX-EA50 and NEX-6 both accept the speedbooster. The flange distance of the NEX series has allowed me to adapt any lens to it and now with the speedbooster, you can get the full frame look on a variety of lenses from new Canon EF glass to Tamron SP lenses from the 70s.
4) Peaking: I know this isn't a massive feature but when trying to manual focus on a small LCD screen, peaking is your best friend. Canon DSLRs do not have this feature. I've been using it non stop since I purchased the NEX-6.
The list goes on but all in all, the NEX-6 is a great partner to the EA50 as a B-cam. It does suffer from the same aliasing problems as the EA50 but this only occurs when you shoot busy scenes with lots of detail. Leave that to your main camera and use the NEX-6 as the detail capturing device such as macro shots or close ups. Although it does very well with busy shots if you need it.
If you do purchase this camera, I recommend looking up different ways to optimize the video. Unlike the EA50, there isn't really a picture profile menu. You can change a few settings to achieve a flat look like I did in this video but it's not nearly as extensive as it is on the FS100 or EA50.
One other important thing I've noticed is that the LCD and histogram lie to you. Shoot everything underexposed with this camera, especially in daylight. It may look dark on the viewfinder but I assure you, it isn't on every other screen. If you're on manual exposure and use the histogram to achieve that ideal 'hump' in the middle, your shots will be bright and ugly in post. I've been exposing with the 'hump' mostly on the left (dark) side of the histogram and have gotten great results.
Sony NEX-6 Body
Metabones Speedbooster + BigIS Tamron Adaptall Adapter
Tamron 30-80mm f2.8-3.8
Sony 16mm Pancake f2.8
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