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Merci de ton intérêt.Il ne faut pas oublier,en plus ,que en macro,la profondeur de champs est à 50% devant et derrière l’endroit de mise au point et pas un tiers avant et deux tiers arrière comme en photo normale.vu la faible profondeur de champs,cela peut être important de bien choisir sa mise au point .Je te souhaite de beaux clichés. J’ai commencé la macro vers les années 78 sans staking et autres gadgets bien utiles d’ailleurs…à ce moment on retournait les objectifs,on utilisait des tubes allonges ,des soufflets plus des bonnettes,on multipliait les flashes mais olympus avait un objectif micro 20 mm f2 qui sur bague donnait un grossissement de 5 à 10 perte de lumière de l’ordre de 100 fois moins d’où la multiplication de flashs.olympus a été la première firme à les piloter en automatisme TTL avec contax ensuite.om2n fut une révolution avec son pilotage durée du flash sur luminosité arrivant sur le film
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