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AOI Accessory Float Arm
Price on Option List
AOI categorizes its float arms by diameter and buoyancy: diameters (D) are classified into three sizes—S (55mm), M (75mm), and L (95mm)—with varying positive buoyancy options extending from there based on the length (L).
Description
AOI Accessory Float Arm
The core structural design, specification mapping, and buying guide for this high-buoyancy, hollow, hard-sealed Float Arm are fully detailed below:
Core Materials & Pressure-Resistant Structure
- Structural Materials: The main body is constructed from a combination of high-strength hard-anodized aluminum alloy and glass-fiber reinforced polycarbonate (PC+GF).
- Depth Rating: The entire series features a professional depth rating of up to 100 meters (330 feet). Unlike traditional high-density foam (such as buoyancy blocks), this rigid hollow design will not compress under intense water pressure in deep water, preventing any critical loss of buoyancy.
- Ball Joints: Equipped with standard 1-inch (25mm) integrated aluminum alloy ball joints featuring non-slip rubber O-rings, ensuring an exceptionally secure lock when paired with standard ball clamps.
AOI categorizes its float arms by diameter and buoyancy: diameters (D) are classified into three sizes—S (55mm), M (75mm), and L (95mm)—with varying positive buoyancy options extending from there based on the length (L).
| Model | SIZE | Diameters | Length | Weight in Air | Buoyancy in Water (pc) |
| AOI AMF-S70 | S | Φ55 mm | 6″ / 152.3 mm | 160.8 g | 70 g |
| AOI AMF-S140 | S | Φ55 mm | 8″ / 203.1 mm | 190.5 g | 142 g |
| AOI AMF-S215 | S | Φ55 mm | 10″ / 253.9 mm | 236.4 g | 216 g |
| AOI AMF-S165 | S | Φ55 mm | 12″ / 305 mm | 285 g | 165 g |
| AOI AMF-M205 | M | Φ75 mm | 6″ / 152.3 mm | 201.6 g | 206 g |
| AOI AMF-M350 | M | Φ75 mm | 8″ / 203.1 mm | 262.3 g | 350 g |
| AOI AMF-M500 | M | Φ75 mm | 10″ / 253.9 mm | 313.6 g | 504 g |
| AOI AMF-L370 | L | Φ95 mm | 6″ / 152.3 mm | 258.9 g | 374 g |
| AOI AMF-L640 | L | Φ95 mm | 8″ / 203.1 mm | 331.6 g | 644 g |
Practical Buying Guide & Rigging Tips: Choosing the Right Diameter Based on Water Current and Drag
- S Series (55mm): Minimal Water Drag
- Ideal for high-current environments and macro photography requiring maximum agility to chase fast fish or tiny nudibranchs.
- Perfect for lightweight travel setups using compact mirrorless systems (e.g., Canon R50) to keep the overall rig less bulky.
- M Series (75mm): Optimal Balance
- The ultimate all-rounder and most versatile option.
- Strikes the perfect balance between high buoyancy and manageable water drag.
- L Series (95mm): Maximum Buoyancy
- Higher water drag but delivers massive, heavy-duty flotation.
- Specifically engineered to neutralize the weight of heavy DSLR/professional cinema systems loaded with massive conversion wide-angle lenses and heavy video lights.
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Additional information
| Weight | 0.5 kg |
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