Canon RF 7-14mm F2.8-3.5L Fisheye Review for Underwater Photography
A new fisheye lens is always a big deal for the underwater photography community. Back in the early 2010s, Canon was first to modernise its…
How to Unlock 1/320s Flash Sync on the Canon R5 Mark II
For underwater photographers, maximum flash sync speed is one of the most important camera specifications, and I recently discovered that the Canon R5 Mark II…
Why 360 Camera Footage Looks Worse Underwater — and 5 Ways to Improve It
360-degree cameras are one of the best imaging tools to capture what you experienced during a dive. But if you’ve been using one, you may…
Why use a 360 camera underwater?
If you’ve been on a dive trip recently, you might have noticed some scuba divers carrying a ball-shaped housing on the end of a stick.…
Retra Pro Max II strobe: detailed field review
Over the past eight years, Retra Underwater Technology (“Retra” for short) has earned a solid reputation as a manufacturer of high-end underwater strobes. From their…
Review: e-Turtle Smart 3 Manual Flash Trigger for Canon cameras
Since switching to Canon in May 2025, I’ve had the opportunity to test four different flash triggers on the Canon R5 Mark II, which is…
Canon R5 Mark II Underwater Review
This review was first published on DivePhotoGuide.com in September 2025, then updated here in June 2026 with latest findings on flash synchronisation speed. The very…
Announcing the Ocean Geographic Photographer Recognition Program
A new horizon awaits for underwater photographers ready to be seen, celebrated, and supported. Ocean Geographic and The Underwater Club are proud to announce the launch…
Canon R5 Mark II Settings for Underwater Photography
Are you looking for the best way to configure your Canon R5 Mark II for underwater photography? When I first got this camera, I spent…
Backscatter TTL Flash Trigger Review
When Backscatter launched their impressive Hybrid Flash (HF-1) back in April 2024 (see my comprehensive review), they also announced a couple of forthcoming accessories. One of them…