https://www.millertripods.com/wp-content/uploads/2024/01/D7412-2_OPM_Sprinter_II_Tripod_Series.pdf
我查了查三脚架可以支持55磅
液压云台可以支持22磅
The specifications for the Miller DS series 2-stage tripod systems vary slightly depending on whether you are using the Alloy (Aluminum) or Carbon Fiber version and which fluid head (DS10 or DS20) is paired with it.
The most common professional configuration is the Miller DS20 2-Stage System.
Core Specifications (DS20 2-Stage Alloy System)
Fluid Head Details (DS20)
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Pan/Tilt Drag: Adjustable fluid drag system (temperature resistant).
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Counterbalance: 2 selectable positions to match different camera weights.
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Tilt Range: +90° / -75°.
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Pan Range: 360°.
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Camera Plate: Sliding quick-release plate with 60mm travel for balancing.
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Operating Temp: -40°C to +65°C (-40°F to +149°F).
Variations & Components
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Solo-Q 75 2-Stage (Carbon Fiber): If you have the Carbon Fiber version, the system weight drops to approximately 4.5 kg (10.2 lbs) and typically uses concentric rapid locks instead of toggles. It can also achieve a lower minimum height (around 9.5 inches) because it lacks a central spreader.
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Spreader Options: Professional 2-stage alloy systems often include either an Above Ground (Telescopic) spreader for uneven terrain or an On-Ground spreader for studio/flat surfaces.
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Standard Accessories: Typically includes a pan handle, padded shoulder strap, and a soft carry case.
The supporting weight (payload) for the Miller DS 2-stage tripod systems depends on which fluid head is mounted on the legs. In professional video systems, the "load capacity" is determined by the fluid head’s ability to counterbalance the camera, while the legs themselves usually have a much higher structural capacity.
Here are the weight specifications for the most common DS series configurations:
1. System Load Capacities
| System Model | Payload Range (Metric) | Payload Range (Imperial) |
| Miller DS10 System | 2.5 – 5.0 kg | 5.5 – 11.0 lbs |
| Miller DS20 System | 5.0 – 10.0 kg | 11.0 – 22.0 lbs |
2. Component Capacities
If you are mixing and matching components, it is important to know the individual limits:
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Fluid Heads:
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DS10 Head: Best for mirrorless cameras or small rigs up to 11 lbs.1
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DS20 Head: Designed for larger ENG-style cameras or accessorized rigs up to 22 lbs.2
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Tripod Legs (The "Supports"):
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2-Stage Alloy (Aluminum): Structural capacity is typically around 25 kg (55 lbs).
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2-Stage Solo-Q (Carbon Fiber): Structural capacity is typically 20 kg (44 lbs).
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Important Note on "Counterbalance"
The DS series uses a 2-step selectable counterbalance system.3 This means the head is designed to "push back" against the weight of your camera to prevent it from flopping forward or backward when you let go of the handle.
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If your camera is under 5.5 lbs, the DS20 might feel "too springy," making it hard to tilt smoothly.
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If your camera is over 22 lbs, the head will not be able to hold its position, and you may risk damaging the fluid drag units.
The Manfrotto 509HD is a heavy-duty professional fluid video head designed for larger camera rigs, such as fully accessorized ENG cameras or cinema setups (RED, ARRI, Sony Venice).1 It utilizes Manfrotto's "Bridging Technology" and is known for its robust 100mm ball base.2
Core Specifications
| Feature | Specification |
| Safety Payload | 13.5 kg (29.76 lbs) |
| Counterbalance Range | 4 steps: 0, 4.3kg, 8.6kg, 13kg (up to 28.6 lbs) |
| Mounting Base | 100mm Half Ball |
| Head Weight | 3.9 kg (8.6 lbs) |
| Tilt Range | -60° / +90° |
| Panoramic Rotation | 360° |
| Operating Temperature | -20°C to 60°C (-4°F to 140°F) |
Key Features
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ABR (Advance Balancing Recorder):3 An electronic sensor that "remembers" the perfect balancing position for your specific camera rig. When you remount the camera, LED lights guide you back to that exact spot.
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Variable Fluid Drag: Both pan and tilt axes feature a continuously adjustable fluid drag system, allowing you to fine-tune the resistance based on your shot's speed.4
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Illuminated Bubble Level: A battery-powered (CR1220) backlit spirit level makes leveling the head easy in low-light environments.5
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Easy Link Connectors: Two 3/8'' threads on the side of the head allow you to attach accessories like external monitors, lights, or friction arms directly to the head rather than the camera.6
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Sliding Plate: Uses the 509PLONG quick-release plate, which provides a long travel distance (83mm) to help balance front-heavy or back-heavy rigs.7
Comparison Note
Compared to the Miller DS20 (which supports up to 22 lbs), the Manfrotto 509HD offers a higher payload capacity (~30 lbs) and a wider 100mm bowl, which provides significantly more stability for top-heavy cinema configurations.
