I have no idea of weight limit, with very carefull balancing the GH3+12-40mm olympus+ arca swiss style QR plate combo works, but I don't think if would work well with more weight. probably well suited to a a6000/6300 and lightweight lens. Some results with 14-42 OIS kit lens :

after some more tuning and more importantly balancing i'm quite happy of the results, especially with the 14-42 II lens with IS. I had to unsolder the IMU to add some spacers to balance the pitch axis with a quick relase plate. The two control knobs work well but are quite sensitive, maybe some more tuning can solve that (ACC and angular velocity are programable on the controller)

Slow motion on the Beholder MS-1.

Wieldy gimbal

Beholder MS1 vs. Nebula 4000

Cons: Only two profiles for work, joystick works at both. Less space behind the camera, but ok for most autofocus lenses.

Pros. Works out from the box, no need calibrate, just 5-seconds gyro calibrating. I like its factory calibration more than my Nebula, where I made it with privet technician 5 times. About 4 hours netto working time. Brutto it's almost 10 hours. Cheap replaceable batteries, you always can use second set. Beholder branded standalone charger for batteries and same batteries you can buy from aliexpress. 17$/24$. Very strong motors!!! It holds weight much more than Nebula. You can now make some manipulations with a lens or camera's body and Beholder MS1 not go crazy. Real life experience with heavy lenses like Nokton 25 0.95, Olympus 75 1.8 (Nebula can hold it only with huge vibration, not for real shooting) Joystick. I found it very helps for some situations.

Its 8 bit system makes me feeling of 32 bit I tried with another gimbals. It's faster to take Beholder from the bag and start shooting. You even can put you balanced camera on Beholder to its bag or your backpack without disassembling. At that case beginning of shot will start after few moments (now I think it very useful at vocations too). It's very compact at bag. Calibration gyro (5 seconds on table) is only maintenance you need do if you put lenses with very different weight. Big USB on the handle used for small USB light (included) and as charger for mobile phone (you can use it instead the cameras LCD)

Tabulations of One-Handed 3-axis Gimbal Systems. Join anyone interested. http://www.personal-view.com/faqs/single-hand-gimbals

very similar

http://www.cinemountsystems.com/shop/proglide-3-axis-gimbal-stabilizer-ildc-brushless-gimbal-for-gh4-nex-sony-a7-bmpcc/

Is now $499 at http://www.owldolly.com/collections/gyro-stabilizers/products/beholder-ms1-3-axis-stabilizer

Pilotfly H1 with GH4 12-35mm (Portrait supertones setting)

Out of the box, quick balance, quite a windy and high-contrast day - some overexposed shots for sure. The 'dolly' shot with house in background has slight post stabilisation because of microjitters. PIDs from pilotfly seem to have sorted those out since then. Some of the shots are at 35mm and still look good. The shot in the barn is what I'm most excited about because you have that added level of polish and control - it lifts it from a home video to 'cinematic'. The tilt up/down button is going to be a useful tool, very smooth and with a bit of practice should be precise too. Can't wait to use it for a wedding. Critiques and feedback very welcome.

Hey Guys,

I am seriously considering pulling the trigger on the Beholder gimbal mentioned in previous posts. Almost bought the Nebula 4000 Lite, but then found Dave Dugdale's review and he mentioned the Beholder that was at NAB this year. He will be doing a review at some point of the Beholder, but I don't know when that will be. Attempts to get a response from Team Rebel Design who make the product have not been successful, which is obviously worrisome...

I just read an article from cinema5d introduced a brand new handheld gimbal for a7s and panasonic gh4-MOZA Lite:

http://www.cinema5d.com/5-affordable-gimbal-stabilizers-cheaper-dji-ronin/