URSA Mini 4.6 w/ Letus Helix?

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Jeffrey Chance

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URSA Mini 4.6 w/ Letus Helix?

PostThu Oct 12, 2017 4:52 pm

Hey everyone!

I recently invested in a Letus Helix Standard for my ursa mini (I also purchased the XLR 2 pin). Deal came with a lot of goodies, extra batteries, etc.

but didn't come with any explaination on HOW to set it up. This is my first actual three axis gimbal setup as previously I only worked with a Glidecam rig. There's also only ONE tutorial online and the speaker, although helpful, skips steps and doesn't go into detail.

Anyone with a Helix mind helping me out?
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Dennis Sørensen

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Re: URSA Mini 4.6 w/ Letus Helix?

PostThu Oct 12, 2017 7:45 pm

If it was me, i would reach out to Letus directly for help. I think that is the fastest way.
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Tristan Pemberton

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Re: URSA Mini 4.6 w/ Letus Helix?

PostThu Oct 12, 2017 8:18 pm

There's some good YouTube tutorials and more than one Letus tute.

I even found a YouTube clip of a guy balancing his UM on the Helix. Keep looking, you'll find more info.

But just a couple of tips...
1. Get the long plate (if you haven't already)
2. Get it balanced on all three axis FIRST (for tilt you raise/lower the handles)
3. If you can use an external monitor do it - that way you'll have optical centre.
4. Use the Helix batteries to power the camera - get at least one extra
5. Spend time checking calibration using SimpleBG_GUI. It's worth it to get the gyro & accel sensors right.
6. Stick with it when things feel tricky - once you get it set up, it's magic!

I use the RedRock thumbwheel controller for remote focus. It's only single channel, but works great and is powered by the Helix. Definitely worth the investment. Also, consider removing one of the handles and replacing with the UM grip. With one LANC cable you've got more control at your fingertips. I haven't done this yet, but seen examples with C300 using the Sony grip.

Final tip, not sure if you have gears (or using remote focus), but if not consider getting the cool-lux gears. It's worth having gears installed to the lenses you'll be using for gimbal. The strap/screw on type gears are ok, but will frustrate you after a while.
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Tristan Pemberton

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Re: URSA Mini 4.6 w/ Letus Helix?

PostFri Oct 27, 2017 10:39 am

Here's a few shots of my Helix with the URSA Mini 4.6k PL installed.

In this configuration I'm using a GL Optics 11-16mm T3 lens, and the RedRockMicro remote focus gear with a thumbwheel controller. It's a powerful little motor and works great. Soon I'll have a Nikon 17-55mm T3 (it's being rehoused) as my second lens option. That should cover 95% of the situations I'll use the gimbal for. I've recently added a simple LANC stop/start button, which is REALLY useful.

Everything, apart from the VA 5" monitor is powered from the Helix. Once I make up another lemo cable, I'll be able to power that too.

I'm really happy with the performance. Once it's balance and calibrated, it's so easy to use. As and inexperienced gimbal operator, I've been able to capture great footage the first time on a job.

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Director
Australia
www.flywirefilms.com

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