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Sebastien Delautier Photographie

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Sebastien Delautier Photographie

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Professional photographer specialized in underwater photography

19/09/2026

Magic Ressel: only a week ago yet it seems so far away after a week of unexpected news...

Carpe diem

Team: Nicolas Monchaud
Lighting: BigBlue Dive Lights Europe
Shot on Sony A7iv and 28mm F/2 with a Nauticam WWL1

12/09/2026

Magic Ressel in clear view

Getting into new photography ideas in a very classic cave yields unexpected results.
Great conditions in spite of the autumn crowds underwater.

Team: Nicolas Monchaud
Lighting: BigBlue Dive Lights Europe
Camera: Sony A7iv with 28mm and WWL1

21/08/2026

It only lasted for 1min30 but will remain engraved in our minds for a lifetime.

Cosmic activity brings us to another scale in the grand scheme of things.

This series of pictures was captured through an Heliostar H76, a dedicated equipment for solar observation focusing on the H-alpha emission ray. This shows the top layer of the sun, the chromosphere. It’s possible to watch and to photograph solar prominences and enjoy beautiful details of the sun surface.

The totality phase was captured with standard photo gear, a A7r5 with a sony 100-400GM lens at 400mm. During the totality phase it’s possible to see solar prominences in the visible spectrum. Longer exposures highlight the solar corona which was beautiful that evening in all directions.

Both systems were set on tracking mounts to ensure framing stability over the path of the eclipse.
The totality path and sun position were planned with PhotoPills

Prints available, link in bio.

Sony .france

24/07/2026

Summer time...incredible viz in this spot, unlike during winter.

What a blast we had in Trou Madame...The winter 200m sump is completely different during summer. Extraordinary visibility (30m+), max depth 3m and mostly a lake (only a 30m-long overhead).

It was a great opportunity to cool off underground with Nicolas Monchaud and light big volumes with BigBlue Dive Lights Europe CB30000s and CB10000s.

Not really a "big dive" so to speak, but such a great photo shoot.
More to come on my website...
Link in bio

Shot on Sony A7iv with 28mm F/2 and Nauticam WWL1

24/07/2026

After two months of a more or less continuous heat wave, we decided to use natural air conditioning for today.
An old photo project coming to life....We'll see how it turns out.

19/07/2026

Petit tour dans les Pyrénées pour des photos un peu différentes de d'habitude

19/06/2026

After multiple failed attempts over the past 7 years, I finally made it to the "dry" section behind Cabouy sump 1. More than 2 kilometers from the entrance, this was quite a ride. But so rewarding nevertheless...The dry section is massive, the lake runs over a kilometer. Photographs do not give justice to this huge cave.

Many thanks to the big team: Florian Jai Nicolas Monchaud Mathieu Dichamp Hervé Vilatte giesen

Lighting from BigBlue Dive Lights Europe, CB30k x3, CB7200x1, CB1000x1

Camera: DJI mini 3 Pro carried in an ex NATO dry tube

29/05/2026

Ressel lointain. Une galerie disproportionnée dans ce conduit, peu avant le Y (800m de l'entrée). Nous allons retourner à plusieurs reprises prendre des photos dans ce secteur pour documenter certaines des parois très verticales.

28/05/2026

Ressel lointain. A partir de 400m de l'entrée, la galerie devient gigantesque et la visibilité est souvent meilleure. Cette photo est prise au niveau de l'arche, à environ 750m de l'entrée et à 50m de profondeur.

27/05/2026

Falaise éventrée ou érosion des millénaires? Les stigmates sur la roche sont toujours mystérieux.

Le shunt du Ressel, partie haute

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https://www.sebastiendelautier.com/

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