


The new Pro Max has the highest power output of the new Retra Flash Series, a new OLED back panel display and is the ultimate lighting tool for any underwater photographer.
Featuring the same lamp and reflector design as the Pro Max but with 50% less power output and without the back panel display. The Retra Flash Prime + provides smooth lighting in any condition.
The Pure is our entry level strobe with a smaller lamp and reflector that will satisfy the needs of every beginner or a serious macro photographer.
TECH-SPEC
Retra Flash Pro Max
Retra Flash Prime +
Retra Flash Pure
140 Ws
90 Ws
70 Ws
4x / 8x AA Batt.
4x / 8x AA Batt.
4x / 8x AA Batt.
Monolithic Aluminium Alloy
Monolithic Aluminium Alloy
Monolithic Aluminium Alloy
878g / 995g
838g / 958g
838g / 958g
102,5 mm
102,5 mm
102,5 mm
148 mm
148 mm
148 mm
173 mm
173 mm
173 mm
~4900 K
~4900 K
~4900 K
0-3s
0-3s
0-3s
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Classic A1
Classic A1
Classic A1
(1) Weight on land with mounting ball and 4x AA Eneloop PRO Batteries / 8x AA Eneloop PRO Batteries respectively
(2) Recycle time varies depending on state of batteries, chosen power setting and if using the Booster
Read more about our 4th generation Retra Flash Series by clicking the button below.
PRO MAX FEATURES


Bayonet Mount
The front of the Retra Flash features the classic bayonet mount with a lock mechanism for safely attaching all existing Retra accessories
Sturdy & Elegant design
The monolithic aluminium alloy casing is made to withstand depths up to 100 meters and offers superior cooling and is more resistant to vibration
Circular Flash-tube
The circular flash-tube offers high quality of light output with softer and more evenly distributed illumination


Optical Connector
The new optical triggering system is even more reliable than before, able to read optical input even from sub optimal fiber optic cables.
Seamlessly compatible with the Inon threaded connector and the Sea&Sea plug connector
Backlit OLED display
The backlit OLED display shows you all necessary information in one spot - clearly visible in any lighting condition.
Info: current mode, power setting, battery life, recycle time
Leakage Detection
Leakage detection system warns you if water ever gets into the battery compartment
Mode Button
The Retra Flash has a variety of modes to choose from:
- BATT/TEST (battery level & test)
- M (manual mode)
- TTL (through the lens mode)
- HSS (high speed sync mode)
- U (user defined mode)
- SOS (emergency signal)

4th Generation of Underwater Strobe Technology
With our 4th generation series, we listened to all your comments and made changes to the Retra Flash to better suit your needs.
- Electronics were completely redesigned with efficiency and performance in mind
- 4th Gen. Retra Flash uses less power for the same light output
- Optical triggering system is more reliable and able to read optical input even from sub-optimal fiber optic cables

Intuitive Back Panel Controls
We've spent hundreds of hours analyzing feedback from photographers on the field and tweaking our designs to bring you a back panel you are immediately familiar with.
We're also introducing a brand new innovation that is the centerpiece of the new Retra Flash Pro Max. The OLED display shows relevant information based on selected mode.
The information is uncluttered and clearly displayed - even in sunny shallow waters!
Information that can be seen on the display:
- Current mode
- Power setting
- Battery life indicator
- Capacitor recycle indicator
- And more!
The control dials are more robust to allow easy operation and more control when using gloves.

A reliable power source is the key
Our 4th generation Retra Flash models have a completely redesigned battery compartment that can now hold 8x AA cells without the need for a separate battery compartment, when using the Booster.
The Retra Flash is also the only underwater strobe with a built-in leakage detection system that warns you if water gets into the battery compartment.

Cutting-edge signal processing system
Our 4th generation Retra Flash Series feature the most advanced optical signal processing unit ever fitted to an underwater strobe.
The new optical signal processing unit can filter and detect a signal in almost any condition. The signal is dissected with microsecond precision and analysed with laboratory grade algorithms that run seamlessly in the background at all times.

Photons that inspire
We made no compromise when it came to light output and power. The new Retra Flash triggering system is our most efficient design yet.
- New circular flash tube,
- New reflector design
- New frosted dome design
The Retra Flash offers soft and evenly distributed illumination of the subject, providing stunning results in a variety of conditions.
For more information on the quality of light, read the full article by clicking the button below.
Read More
Retra UWT App
The world's first underwater strobe with smartphone connectivity
We wanted our users to have as much control and information on the performance of their Retra Flash as possible. That's why we made the Retra UWT Application (for Android & iOS) that can be paired with your Retra Flash via bluetooth.
The Retra UWT App allows you to:
- Download firmware updates
- Create custom user modes
- See basic information (number of flashes, current version, serial number, etc)
- Read instruction manuals
Why choose Retra?
Retra UWT was established 2012 with the goal of designing the most advanced underwater strobe that can deliver top-tier performance in any condition and for all styles of underwater photography.
2,5 year Retra Warranty with Supercharger / Booster
We firmly believe in our products at Retra UWT. That's why we offer a 2 year warranty on our Retra Flash strobes, plus 6 months with a Supercharger / Booster, giving you a total of 2,5 years of guaranteed function.
Life-time Repair Service
The Retra Flash was designed to be your life-long companion. That's why if you ever run into any issues with any of your Retra products, please don't hesitate to contact us, as we want to help you resolve any problems and ensure you get the best out of your Retra products.
We stock repair parts for older models of the Retra Flash, so your strobe never becomes obsolete.
We understand our products inside and out, that's why we can assess the cost of repair before you send us the Retra Flash or LSD. Just contact us via e-mail with a description of the problem and pictures/videos and we'll let you know the estimates.
Fair Pricing
We're not fans of consumerism here at Retra, that's why we make products meant to last. All Retra products are made for long term use and are future proof (we service all Retra Flash and LSD products).
No blown up prices means no sales. Everyone pays the same price - everyone gets top quality products. That's because we don't sell discounts - we sell, develop, and produce high quality underwater photography equipment.
All Retra prices were calculated based on the material, technology, and development costs.
Fast Repair Times
We use Express Global Shipping for all our repairs to ensure fast delivery worldwide.
You send us the Retra product that needs repair, we fix it and get it back to you within 5 working days on average.
Express Worldwide Shipping
We do our best to get the items delivered to you as fast as possible - that's why we use Express Global Shipping.
If the items you are ordering are in stock, they will be sent within one to two working days, depending on the size of your order.
Delivery to EU takes 1 - 2 working days
Delivery to USA takes 2 - 3 working days
Delivery to Australia and Asia takes 2 - 5 working days
If you have an urgent order please let us know in the notes of your order. We will do our best to deliver the products to you in time.
REVIEWS

– Daniel Norwood, Dive Photo Guide
"After several months of constant use, I have nothing but good things to say about the Retra Flash PRO, and they have now become my go-to flashgun for the majority of my underwater photography work."

– Mike Bartick, Reflector review
"It is fun to use and perfectly suited for all-around use, including macro, wide angle, close focus wide angle, and oh yeah, blackwater!"

– Walt Stearns, Scuba Diver Destinations
"With the Retra Flash Prime, the quality and consistency of the light on subjects I was seeing was far more pleasing. The lighting from the Prime’s fully circular flash tube was impressively even..."

– Nicolas Remy, UWP Magazine
"I would buy them again if presented with the same choice."

The Bayonet Mount
We wanted to make a versatile underwater strobe that could perform in any condition and for any style of underwater photography.
The Retra Flash features a bayonet mount at the front of the strobe that allows you to attach a range of different accessories, transforming the Retra Flash into a truly customizable light source.
The bayonet is also designed to be future-proof, as the dimensions of the bayonet remain the same on all versions of the Retra Flash. This way any accessory you buy now, will never become obsolete.
All the Accessories
We offer a wide variety of accessories that unlock the full creative potential of the Retra Flash and help protect it from damage. So, whether you're a fan of wide angle shots or like to get up close and personal with your subjects, there's an accessory for every occassion.

Diffusers
The selection of Diffusers change the color temperature, softness and light output of the Retra Flash. We offer 4 different options to choose from.

Reduction Ring
The Reduction Ring narrows and focuses the light beam. It helps reduce backscatter for macro or low visibility photography.

Macro Rings
The Macro and Super Macro Rings reduce the angle of light for narrow angle photography. They are perfect for getting up close and personal with your subjects.

Reflector
The Reflector boosts the light output by +1 F-stop (in water) and narrows the angle of light for more precise light control.

Bumpers
The Bumpers are attached to the front and the back of the Retra Flash to protect the edges against damage during rough seas.

Protective Ring
The Protective Ring does not impact the size or quality of light. It's main task is to shield the dome from damage.
2.0x
Increase in Battery Life
With the Booster, you can use your Retra Flash for longer underwater photography sessions.
50%
Shorter Recycle Time
The Booster decreases the recycle time of the Retra Flash by half, enabling fast action shooting.

Light Shaping Device
An accessory worth a special mention is the Retra Light Shaping Device (LSD). Due to its modular design, the Light Shaping Device can be easily paired with other flash devices by simply changing the mounting module.
When paired with the Retra Flash, you can also turn on the guide or modeling light on the strobe to see exactly where you're aiming your snoot. This way, there's no guesswork involved when positioning your flash light.
And with the extra slot for inserting different masks, you can easily control the diameter and shape of your light, giving you endless creative potential.
To read the full article about the Light Shaping Device, click the button below.
Read Full ArticleThe Retra Vault
Dive deep into Retra's Vault to learn tips and tricks on how to make the best use of your Retra Flash and stay up to date with the latest news and firmware updates from the Retra team.

4th Generation Retra Flash Series
With our 4th generation Retra Flash Series, we wanted to push the limits of innovation and give our fans a user-friendly underwater strobe that could deliver top-tier performance in any situation.

Follow our social media accounts and keep in touch with the latest images produced with our products...

Celebrating 10 years of innovation with a new Retra Flash
Marking our 10th anniversary with the most advanced underwater flashgun we've ever made....
FEATURED RETRA PRODUCTS
Do you need any additional information?
If you have any additional questions or concerns, feel free to contact us by filling out the form and we'll answer as soon as possible. We usually answer within 24 hours.
You can also check out our FAQ page here.