
The AOI Quick Release System (QRS) allows you to quickly and easily switch between compatible wide-angle and macro wet lenses underwater, whether you use a compact camera, mirrorless camera or action camera. With so many different AOI mount bases, lens adapters and lens holders available, it can be difficult to know exactly which components you need. That is why UWCamerastore.com has developed this AOI QRS Compatibility Guide. Simply select your underwater housing, lens and optional lens holder. We will help you identify the right components for your underwater photography setup.
What Is the AOI Quick Release System (QRS)?
The AOI Quick Release System (QRS) is a quick-release mounting system (bayonet) that allows underwater photographers to easily switch between compatible wide-angle and macro wet lenses, without having to screw and unscrew the lenses each time. The system consists of a mount base attached to the underwater housing and a matching connection or adapter on the wet lens. Optional lens holders allow you to securely store unused lenses on the arm of your underwater strobe or video light.
AOI QRS-01 is designed for compatible compact and mirrorless camera underwater housings, while AOI QRS-02 is developed for compatible action camera underwater housings.
AOI Quick Release System (QRS) Compatibility Guide
Step 1 Which camera system do you use?
Which lens port does your underwater housing have?
We cannot automatically determine which AOI QRS mount base will fit your setup. Even if your port has an M52 or M67 thread, this does not guarantee compatibility with an AOI QRS mount base.
Please contact UWCamerastore.com through our live chat or contact form. We will be happy to help you choose the right accessories.
Open contact form →Which underwater housing do you use?
Please select the exact underwater housing, not just the action camera model.
Step 2 Which wet lens do you use?
These lenses already feature an integrated QRS-02 connection. No additional adapter is required on the lens side.
Step 3 Do you need a lens holder?
A lens holder allows you to securely store your wet lens during a dive by attaching it to the arm of your underwater strobe or video light.
How many lenses would you like to store?
What type of arm do you use for your strobe or video light?
A standard ball arm typically has an open-frame construction with a ball joint at both ends, or a YS connection at one end. It is attached using arm clamps. We recommend an arm of at least 8 inches. On shorter arms, the clamps may interfere with the lens holder.
How would you like to mount your lens holder?
Your AOI QRS Parts List
Find out which AOI Quick Release System components match your selection below.
You have selected a different lens port or an underwater housing from another brand. We therefore cannot provide an automatic product recommendation.
Please contact UWCamerastore.com through our live chat or contact form. We will be happy to help you choose the right accessories.
Contact our customer service →1. Mount base for your underwater housing
View QRS-01-MB3P in our store →
Limited remaining stock of the aluminium QRS-01-MB3 version may still be available. The newer QRS-01-MB3P version combines polycarbonate and aluminium.
View QRS-01-MB1 in our store →
View QRS-01-MB1P in our store →
The QRS-01-MB1 is the aluminium version, available while stocks last. The newer QRS-01-MB1P combines polycarbonate and aluminium.
2. Adapter for your wet lens
The AOI UWL-400A has an M52 threaded connection. This lens is intended for use with a suitable 52mm lens port.
You have selected a 67mm lens port. We do not recommend combining the UWL-400A with this port. A larger wide-angle lens would be a better option for your setup.
Ask us for advice →Please choose a different lens and port combination. If you have any questions, please contact our customer service team.
Contact us →1. Mount base for your underwater housing
Available in black or white. Black: QRS-02-MB7-BLK. White: QRS-02-MB7-WHT.
ActionPro offers its own range of adapters for attaching wet lenses, including adapters designed for certain INON wet lenses.
Explore our ActionPro accessories to find a suitable solution for your underwater camera setup.
View ActionPro lens adapters and accessories →If you have an action camera housing from another manufacturer, please contact our customer service team via live chat or our contact form.
We will be happy to help you choose the right accessories for your underwater camera.
Contact our customer service →2. Lens and QRS connection
This lens already has an integrated QRS-02 connection. No additional adapter is required on the lens side.
This lens already has an integrated QRS-02 connection. No additional adapter is required on the lens side.
This lens already has an integrated QRS-02 connection. No additional adapter is required on the lens side.
3. Lens holder for your strobe or video light arm
QRS-01-MBP Single lens holder.
View QRS-01-MBP in our store →QRS-01-MB4TP Double lens holder.
View QRS-01-MB4TP in our store →Before ordering, make sure there is enough space on your strobe or video light arm to accommodate both lenses.
QRS-02-MBP Lens holder for QRS-02 lenses.
View QRS-02-MBP in our store →Please check the mounting requirements for your arm.
2 x QRS-02-MBP Two storage positions for QRS-02 lenses.
View QRS-02-MBP in our store →Adjust the quantity on the product page. Check whether the required mounting hardware fits your setup.
For side mounting a compatible QRS-02 lens holder to the arm of your underwater strobe or video light.
We recommend using a ball arm of at least 8 inches. With shorter arms, the clamps may interfere with the lens holder and limit movement.
An AOI float arm is compatible with a single QRS lens holder only. A double lens holder cannot be mounted on this type of arm.
Would you like to store two lenses during your dive? Please contact our customer service team. We will be happy to help you find a suitable alternative.
Ask us for advice →For this type of arm, we cannot automatically determine which lens holder or mounting method will be suitable.
Please contact our customer service team. We will be happy to help you find the right solution.
Contact our customer service →Not sure which AOI QRS components you need for your underwater camera? Contact us through our live chat or contact form.
AOI QRS Compatibility Charts
For a quick and easy reference, we've also put together a complete overview of AOI QRS compatibility, including the corresponding mount bases and lens adapters. We strongly recommend completing the step-by-step compatibility guide above first. This helps you verify that all components are compatible with your specific underwater housing and lens, and shows you which lens holder is suitable for your strobe or video light arm.
AOI QRS-01 Compatibility Chart
| AOI Lens | Lens Adapter | Mount Base |
|---|---|---|
| UWL-09 | QRS-01-AD1 | QRS-01-MB1P |
| UWL-09 PRO | QRS-01-AD2 | QRS-01-MB1P |
| UWL-400A | QRS-01-AD3 | QRS-01-MB3P |
| AOI M67 Macro Lenses | QRS-01-M67 | QRS-01-MB1P |
QRS-01-MB1P is designed for compatible AOI M67 ports. QRS-01-MB3P is designed for compatible AOI M52 ports. The UWL-400A has an M52 connection and is not recommended for M67 ports.
AOI QRS-02 Compatibility Chart
| Underwater Housing | Mount Base | Compatible QRS-02 Lenses |
|---|---|---|
| GoPro HERO 5-13 Dive Housing | QRS-02-MB1P | UWL-03 (II), UWL-03 PRO (II), UCL-03 |
| GoPro MISSION 1 / MISSION 1 PRO | QRS-02-MB7-BLK QRS-02-MB7-WHT |
UWL-03 (II), UWL-03 PRO (II), UCL-03 |
| DJI Osmo Action 3 / 4 / 5 Pro | QRS-02-MB3 | UWL-03 (II), UWL-03 PRO (II), UCL-03 |
| DJI Osmo Action 6 | QRS-02-MB6 | UWL-03 (II), UWL-03 PRO (II), UCL-03 |
| Insta360 Ace Pro | QRS-02-MB4 | UWL-03 (II), UWL-03 PRO (II), UCL-03 |
| Insta360 Ace Pro 2 | QRS-02-MB5 | UWL-03 (II), UWL-03 PRO (II), UCL-03 |
| AOI UH-ACT | Integrated QRS-02 mount | UWL-03 (II), UWL-03 PRO (II), UCL-03 |
QRS-02 lenses have an integrated quick release connection, so no separate lens adapter is required. Compatibility depends on the exact underwater housing model.
Using another underwater housing brand? Please contact UWCamerastore customer service for assistance.







![AOI Quick Release System 01 Twin Mount Base for arms [QRS-01-MB4T]](https://www.uwcamerastore.com/media/catalog/product/cache/b259e133e77f806edbd06b06fe3d0826/a/o/aoqrs01mb4t.jpg)


















