{"id":2003,"date":"2017-06-30T07:46:15","date_gmt":"2017-06-30T06:46:15","guid":{"rendered":"http:\/\/www.yvesguenot.fr\/?p=2003"},"modified":"2018-04-07T12:30:29","modified_gmt":"2018-04-07T11:30:29","slug":"macro-photographie-plongee","status":"publish","type":"post","link":"https:\/\/www.yvesguenot.fr\/?p=2003","title":{"rendered":"La macro photographie en plong\u00e9e …."},"content":{"rendered":"

En photographie sous-marine il est int\u00e9ressant de commencer par la macro , pour plusieurs raisons : d\u00e9couvrir les \u00ab\u00a0petites choses\u00a0\u00bb qui peuplent l’oc\u00e9an et que l’on ne voit pas tout de suite ….r\u00e9aliser des clich\u00e9s de qualit\u00e9 car les sujets en g\u00e9n\u00e9ral sont fix\u00e9s donc les flous de boug\u00e9s sont moins fr\u00e9quents, on peut prendre son temps ….Techniquement , il y a moins d’eau entre le sujet et le capteur ( on est \u00e0 quelques centim\u00e8tres du sujet ) . Mais ce n’est pas pour autant que c’est facile !!!<\/p>\n

Il y a la photo proxy c’est \u00e0 dire \u00e0 50 cm voir 1 m du sujet et la macro ou l’hyper macro o\u00f9 l’on est coll\u00e9 au sujet , dans la limite de la capacit\u00e9 de son optique ( distance minimale de mise au point )<\/p>\n

Mat\u00e9riel utilis\u00e9 : en full frame j’utilise un 100 mm macro Canon ou un 150 mm macro Sigma , avec parfois en plus une lentille additionnelle qui vient se placer devant mon hublot ….Il est int\u00e9ressant d’avoir sur son caisson une lampe pour aider \u00e0 \u00ab\u00a0faire le point\u00a0\u00bb . L’orientation du ou des flash pose moins de probl\u00e8mes qu’en grand angle , du fait de la distance sujet\/capteur, on fait converger les faisceaux vers le sujet . je travaille en TTL avec mon mat\u00e9riel SEACAM et me pr\u00e9occupe donc uniquement de faire mon point et de mes r\u00e9glages en mode manuel . En g\u00e9n\u00e9ral je ferme mon diaphragme suffisamment pour avoir une profondeur de champ correcte . En vitesse , sur des sujet fixes je suis au 1\/80\u00e8, 1\/100\u00e8 \u00a0et pour avoir un bon piqu\u00e9 d’image je suis en 100 iso …. Il m’arrive aussi d’utiliser un tr\u00e9pied pour \u00eatre encore plus stable et pr\u00e9cis …<\/p>\n

Reste \u00e0 composer son image , laisser de la place devant des sujet , attendre une attitude ….tourner autour de son sujet , quand on le peut . ainsi on r\u00e9alisera des images sous marines surprenantes car les sujets nous r\u00e9v\u00e8lent parfois des d\u00e9tails que nous ne voyons pas au travers de notre masque ….Je pense aux hippocampes du Raja Ampat que les guides nous trouvent sur les gorgones …<\/p>\n

Quelques images ….ouvrez la premi\u00e8re image et utilisez le slideshow ( fl\u00e8che en haut \u00e0 gauche …)\u00a0<\/span><\/strong><\/em><\/p>\n

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Les crevettes du Raja Ampat<\/strong><\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

En photographie sous-marine il est int\u00e9ressant de commencer par la macro , pour plusieurs raisons : d\u00e9couvrir les \u00ab\u00a0petites choses\u00a0\u00bb qui peuplent l’oc\u00e9an et que l’on ne voit pas tout de suite ….r\u00e9aliser des clich\u00e9s de qualit\u00e9 car les sujets […]<\/p>\n","protected":false},"author":2,"featured_media":2060,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"footnotes":""},"categories":[82],"tags":[31,74,21,80,48,39],"class_list":["post-2003","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-conseils-photo-video","tag-appareil-photo","tag-croisiere-plongee-au-raja-ampat","tag-indonesie","tag-la-photo-dambiance-sub","tag-le-raja-ampat","tag-nouvelle-caledonie"],"_links":{"self":[{"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=\/wp\/v2\/posts\/2003","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2003"}],"version-history":[{"count":0,"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=\/wp\/v2\/posts\/2003\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=\/wp\/v2\/media\/2060"}],"wp:attachment":[{"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2003"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2003"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yvesguenot.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2003"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}