The Ball Mount Adapter with 1/4-20 Threads from Beneath the Surface is a bolt that attaches to an arm adapter or bridge bar on an underwater video lighting system. It connects the arm system to the tray system, giving you more options for your underwater photography and videography. This adapter contains 1/4-20 threads for mounting.
Arms and Adaptors

BTS 8'' SINGLE BALL ARM w/YS
BTS 8'' SINGLE BALL ARM w/YS
Mounting this black 1" Ball Arm from Beneath the Surface to a grip or base on your underwater camera tray enables the connection of a YS-style strobe or video light. At one end, the arm features a standard 1" ball mount for a clamp; at the other, it has a YS connector for various strobes and lights from Sea & Sea, Olympus, Fantasea, and other brands. The arm is on the shorter side at 8" in length, which makes it useful for lighting close-up shots, but it can also be extended via the addition of another arm section and clamp.

BTS 8'' TRIPLE BALL ARM
Beneath the Surface Triple Ball Arm 8-3
Strobe arm with three ball joints for adding additional accessories. This is a 8" arm.

BTS ARM CLAM BUYONCY
BTS-ACB - BTS - Clamp for Buoyancy Arms
Top Product Features:
- A wider clamp designed to allow more space between the two arms attached. Perfect for use with Buoyancy arms to allow better positioning for macro shots and more.

BTS ARM CLAMP STANDARD
BTS-ACS - BTS - Standard Clamp
Top Product Features:
- Standard clamp for attaching arms and gear with ball mount.

BTS ARM CLAMP TRIPLE
BTS-ACT - BTS - Triple Joint Clamp
Top Product Features:
- Triple clamp for attaching arms and gear with ball mount. Allows more options for mounting gear on your arm system.

BTS BOUYNCY FLOAT FOR BRIDGE BARS
Beneath the Surface Bridge Buoyancy Float
part# BTS-BF-Bridge
Beneath the Surface Products is proud to announce our newest creation, the bridge buoyancy float. Designed specifically for Beneath the Surface Bridge Bar.
Float segment yields 2.25 oz of buoyancy, this will help make the underwater camera system lighter. Aside from that, since it location is at the bridge arm, the "lift" it provides is balanced.Our floats are manufactured from a new high-tech, high density foam and have been thoroughly tested to well beyond sport diving depths.

BTS FLEX ARM 12'' QD
Beneath the Surface 12" Flex Arm with Quick-Disconnect Base for Light & Motion's Sola Dive Lights

BTS YS-BALL 3'' ARM
BTS YS-BALL 3'' ARM
The 3" Strobe Adapter f/Sea & Sea/Olympus/Epoque/Fantasea Strobes from Beneath the Surface is a tool that allows you to connect a strobe of this type to a strobe arm on your underwater camera tray system. Now you can use a strobe with your camera to enhance your underwater photography lighting.

BTS YS-BALL 4.5'' ARM
BTS YS-BALL 4.5'' ARM
The 4.5" Strobe Adapter f/Sea & Sea/Olympus/Epoque/Fantasea Strobes from Beneath the Surface is a tool that allows you to connect a strobe of this type to a strobe arm on your underwater camera tray system. Now you can use a strobe with your camera to enhance your underwater photography lighting.

GOPRO BALL ADAPTOR
BTS GOPRO BALL ADAPTOR
- This adapter is used to fit your GoPro / Action cam on a standard ball mount, for mounting on all types of ball & joint systems.

GOPRO QD FLAT FEMALE-BRIDGE ADAPTOR
Beneath the Surface GPQRF90
Overview
Improve underwater handling and expand creative possibilities with your action camera via this GoPro Female Quick Release Adapter from Beneath the Surface. It allows you to use the optional GoPro or BtS GoPro Camera Quick Release (BTSGPCQR) on the bridgebar of a BtS underwater camera/housing tray system. Alternatively, you could use the optional BtS Universal Quick Disconnect (BTSUNIQRC), to which you can attach any camera or underwater housing with a 1/4"-20 tripod mount. Insert any one of these quick-releases into this female QR adapter.

GOPRO QUICK RELEASE FEMALE
Beneath the Surface GPQRF
Overview
Improve underwater handling and expand creative possibilities with your action camera via this GoPro Female Quick Release Adapter from Beneath the Surface. It allows you to use the optional GoPro or BtS GoPro Camera Quick Release (BTSGPCQR) on an underwater camera/housing tray with a standard 1/4"-20 threaded hole. Alternatively, you could use the optional BtS Universal Quick Disconnect (BTSUNIQRC), to which you can attach any camera or underwater housing with a 1/4"-20 tripod mount. Insert any one of these quick-releases into this female QR adapter.

Long Arm Clamp for 1" Ball Mounts
BTS-ACS-LONG - BTS - Extra Long Clamp for Buoyancy Arms
Top Product Features:
A much wider clamp designed to allow more space between the two arms attached. Perfect for use with Large Buoyancy arms to allow better positioning for macro shots and more.
- For Balls with 1" Diameters
- Enables Connection of Arm Components
Using this Beneath the Surface Long Arm Clamp, you can connect two underwater lighting arm components that have 1" ball mounts. Whether you want to attach an arm to a grip handle's ball base or join two arm sections for greater reach and versatility, this clamp is the simple but effective tool for the job. Measuring 4.0" in length from the center of one ball to the other, it was made for situations where you need a little more reach than the average clamp allows. The accessory is constructed from a 6061 T6 aluminum alloy, which has been anodized to resist corrosion. Additionally, it features a beveled cut that increases the contact area between the ball and clamp, enabling a strong hold without a lot of tension. Thus, you'll be able to tighten the clamp fully using just your fingers.