Mes impressions photos

A l’époque de l'argentique j'utilisais majoritairement des pellicules négatif. J'étais assez raisonnable sur le nombre de pellicule que j'utilisais, car c'était toujours assez frustrant de constater qu'une partie des photos n'auraient pas mérité d'être tirées sur papier : mal exposées, mal cadrées, bougées,...
Pour les photos les plus réussies et que je faisais agrandir, je constatais, bien souvent, une dérive des couleurs par rapport au tirage original.

Ensuite est arrivé le numérique avec ses vertus pédagogiques et sa souplesse d'utilisation (visualisation immédiate des photos, multiplication des essais pour arriver au résultat escompté, mémorisation des données techniques, format RAW pour des traitements logiciel ultérieurs,...).

Et s'est à nouveau posé le (...)

«Expose to the right» in photography in RAW format

We often read in the photographic literature that it is very interesting to «expose to the right» when shooting in RAW format.

In other words, slightly over-expose his pictures during shooting, then adjust the correct exposure in post-processing (eg in Lightroom).

I would like to share with you an analogy that explains the reasons of this technique.

Capteur Canon 6D

A digital sensor is an analog-digital converter, that is converting image through the lens into digital information, usable by the electronic circuits of the camera, and more generally, compatible (...)

Zenphoto and Responsive Web Design

Until recently, the size of the screens of computers getting bigger every year. For web designers, it « enough » to expand the interfaces over time. Then came the iPhone and other Smartphones, the iPad, tablets and other Notebook, which are gradually revolutionizing the Internet and its uses.

A major challenge for web designers now is to build an interface readable on small screens, remain enjoyable on large one, taking into account the specific constraints to each medium (navigation with mouse or finger), in order to provide the best user experience as possible.


One answer is the (...)

ND 400 filter

It's amazing what you can do with a ND 400!

The ND 400 is a neutral density filter which reduces dramatically the intensity of light entering the camera (loss of 9 stops), which allows long exposures at any time of day.

So, during a sunny day on a beach, you can consider images with exposure time up to 30 seconds easily. Everything that moves during the long exposure time will blur or absent from the photo (clouds, water, waves, people,...)!

However, due to the very low light entering in the camera, most of DSLR's automatisms do not work (autofocus and light metering). The use of ND 400 is quite delicate and requires many manipulations to achieve his ends.

Cote Basque I

The basic technique (...)