Interceptor121 Blog

26/03/2025

Underwater shooter point of view on the Sony A1 II

I have been watching and reading lots of content about the new Sony A1 II. I own two A1 and I have been evaluating if an upgrade was worth it. My interest as an hybrid shooter taking photos and vid…

30/10/2024

Another day of cenotes at TajMa Ha

26/10/2024

If you go to Mexico with lots of camera gear better not check in anything as the local rules are farcical and designed to extort money from tourists. You can bring two cameras but I was told I had too many lenses and had to pay a tax. Shame for otherwise very hospitable country.

21/08/2024

Second part of the Panasonic GH7 review for underwater photography covering image quality and ergonomics

Second part of the GH7 review for underwater photography

16/08/2024

The new Panasonic GH7 features Phase Detection Autofocus how does this work underwater?...

The new Panasonic GH7 features Phase Detection Autofocus how does this work underwater?

11/08/2024

Images are not flat and depth of field is important as much as resolution. Here I go back to MFT with the Panasonic GH7 to prove the point...

Images are not flat and depth of field is important as much as resolution. Here I go back to MFT with the Panasonic GH7 to prove the point

28/07/2024

More or less pixels? This is the dilemma!

At present I own 4 cameras: 2 Sony A1, 1 Sony A7CM2 and 1 Panasonic GH7. With the exception of Fuji Xtrans I have practically shot any mirrorless and DSLR from MFT to Full Frame. The race to more m…

22/06/2024

Recently many DSLR user have been moving to Mirrorless, while some are still waiting. The entire world of photography has practically abandoned DSLR but underwater photography is traditionally lagging and this is due to a combination of factors one of the most important being availability of appropriate lenses to fit specific use cases. Unfortunately underwater use cases do not form part of the design criteria of lens manufacturers due to the tiny size of the market, so you need to hope something comes up that can fit that shooting situation you are trying to master....

Recently many DSLR user have been moving to Mirrorless, while some are still waiting. The entire world of photography has practically abandoned DSLR but underwater photography is traditionally lagg…

11/05/2024

This post illustrates how a wet lens works and what are the differences to a traditional dome port in terms of depth of field

Water contact optics have existed in various forms since film cameras however in the last 20 years with the advent of digital compact cameras the emphasis has been on wet lenses. A wet lens would b…

13/04/2024

The Tamron 17-28mm F/2.8 Di III RXD is without doubt one of the best options for wide angle underwater photography. As I wrote in a previous article this lens has several strengths Close minimum focus distance (19 cm wide - 26 cm tele) Lens does not extend when zooming Reasonably compact (99 mm and 420 grams) Good sharpness at the edges from f/4 onwards…...

The Tamron 17-28mm F/2.8 Di III RXD is without doubt one of the best options for wide angle underwater photography. As I wrote in a previous article this lens has several strengths Close minimum fo…

18/02/2024

Finally put together some footage of the lart trip to Malpelo with Colombia Dive Adventures FEROX - Malpelo
Crossing was rough but well worth it when we finally arrived
Not exactly an easy trip tor photos and videos with visibility around 10 meters and a thick green thermocline that the sharks and rays love to cruise by
Global warming is having an effect. In the past water would have been 24C in January instead it was 28C.
Really an adrenaline packed dive trip

Malpelo Expedition January 2024

Malpelo in its entire wilderness.Summary of a trip on the MY Ferox 21-30 January 2024Difficult conditions visibility 5-10 meters and a thick thermocline (the...

06/01/2024

Warning this is an extremely technical article that I have written on request. If you are not familiar with optics, geometry, housings do not attempt to perform a calculation by yourself and rely on expert advice. Background The physics of dome ports are not new to underwater practitioners although not many people understand the formulas, it is well accepted that there is a correct way to size and position a dome port in order to optimise optical performance of a lens inside an underwater housing....

Warning this is an extremely technical article that I have written on request. If you are not familiar with optics, geometry, housings do not attempt to perform a calculation by yourself and rely o…