{"id":14065,"date":"2026-03-11T12:35:07","date_gmt":"2026-03-11T11:35:07","guid":{"rendered":"https:\/\/fotografovanie.eu\/?p=14065"},"modified":"2026-04-08T17:16:08","modified_gmt":"2026-04-08T15:16:08","slug":"iso-vo-fotografii","status":"publish","type":"post","link":"https:\/\/fotografovanie.eu\/en\/iso-vo-fotografii\/","title":{"rendered":"ISO vo fotografii \u2013 \u010do znamen\u00e1 ISO 100, 400, 800 a viac a kedy ho naozaj meni\u0165"},"content":{"rendered":"<p><main class=\"content-wrapper\"><\/p>\n<section class=\"story-intro\">\n<h1>ISO vo fotografii \u2013 \u010do znamen\u00e1 ISO 100, 400, 800 a viac a kedy ho naozaj meni\u0165<\/h1>\n<figure>\n<img decoding=\"async\" src=\"https:\/\/fotografovanie.eu\/wp-content\/uploads\/2026\/02\/9f449c8d1f9c092dd8267f1218ef45813473a60ce88fd6ebf752c53d7a05de96.jpg.webp\" alt=\"nastavenie ISO vo fotografii na fotoapar\u00e1te\" loading=\"lazy\"><figcaption>ISO patr\u00ed medzi tri z\u00e1kladn\u00e9 nastavenia, ktor\u00e9 rozhoduj\u00fa o tom, ako bude fotografia vyzera\u0165.<\/figcaption><\/figure>\n<p>\nAk sa u\u010d\u00ed\u0161 fotografova\u0165, v\u00fdraz <strong>ISO vo fotografii<\/strong> na teba naraz\u00ed ve\u013emi r\u00fdchlo. A je to logick\u00e9. ISO patr\u00ed spolu s clonou a \u010dasom uz\u00e1vierky k absol\u00fatnym z\u00e1kladom, bez ktor\u00fdch sa ned\u00e1 rozumne nastavi\u0165 fotoapar\u00e1t ani pochopi\u0165 expoz\u00edcia. Napriek tomu je ISO pre ve\u013ea \u013eud\u00ed st\u00e1le trochu zahmlen\u00e1 t\u00e9ma. Vedia, \u017ee vy\u0161\u0161ie ISO rob\u00ed fotku svetlej\u0161ou, vedia, \u017ee sa pri \u0148om objavuje \u0161um, ale u\u017e si nie s\u00fa ist\u00ed, kedy je e\u0161te \u201ebezpe\u010dn\u00e9\u201c a kedy u\u017e zbyto\u010dne kaz\u00ed kvalitu obrazu.\n<\/p>\n<p>\nPr\u00e1ve preto vznik\u00e1 ve\u013ea zbyto\u010dn\u00fdch ch\u00fdb. Niektor\u00ed fotografi sa boja vy\u0161\u0161ieho ISO tak ve\u013emi, \u017ee rad\u0161ej nechaj\u00fa \u010das uz\u00e1vierky spadn\u00fa\u0165 pr\u00edli\u0161 n\u00edzko a skon\u010dia s rozmazanou fotografiou. In\u00ed naopak nastavuj\u00fa ISO zbyto\u010dne vysoko automaticky, aj ke\u010f by im sta\u010dilo trochu lep\u0161ie pracova\u0165 so svetlom, clonou alebo oporou fotoapar\u00e1tu. V\u00fdsledok je rovnak\u00fd \u2013 namiesto vedom\u00e9ho rozhodnutia vznik\u00e1 n\u00e1hoda. A vo fotografii pr\u00e1ve toto odde\u013euje za\u010diato\u010dn\u00edka od \u010dloveka, ktor\u00fd u\u017e za\u010d\u00edna ch\u00e1pa\u0165, \u010do rob\u00ed.\n<\/p>\n<p>\nDobr\u00e1 spr\u00e1va je, \u017ee ISO sa d\u00e1 pochopi\u0165 ve\u013emi jednoducho, ak ho prestane\u0161 vn\u00edma\u0165 ako stra\u0161iak a za\u010dne\u0161 ho bra\u0165 ako praktick\u00fd n\u00e1stroj. Nejde o to dr\u017ea\u0165 ISO st\u00e1le na hodnote 100. Ide o to vedie\u0165, kedy je rozumnej\u0161ie necha\u0165 ho n\u00edzko a kedy je lep\u0161ie ho zv\u00fd\u0161i\u0165, aby si z\u00edskal ostr\u00fa a pou\u017eite\u013en\u00fa fotografiu. Tento \u010dl\u00e1nok ti uk\u00e1\u017ee, \u010do ISO znamen\u00e1, \u010do rob\u00ed s obrazom, ako s\u00favis\u00ed so \u0161umom a ako sa rozhodova\u0165 v re\u00e1lnych situ\u00e1ci\u00e1ch pri portr\u00e9te, krajine, v interi\u00e9ri, pri pohybe aj v noci.\n<\/p>\n<p>\nTento \u010dl\u00e1nok prirodzene nadv\u00e4zuje na:<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/expozicny-trojuholnik\/\">expozi\u010dn\u00fd trojuholn\u00edk<\/a>,<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/ako-nastavit-fotoaparat\/\">ako nastavi\u0165 fotoapar\u00e1t<\/a>,<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/clona-vo-fotografii\/\">clonu vo fotografii<\/a>,<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/manualny-rezim-fotoaparatu\/\">manu\u00e1lny re\u017eim fotoapar\u00e1tu<\/a><br \/>\na<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/zaklady-fotografovania-kompletny-sprievodca-pre-zaciatocnikov\/\">z\u00e1klady fotografovania<\/a>.\n<\/p>\n<\/section>\n<nav class=\"toc\">\n<p><strong>Obsah \u010dl\u00e1nku<\/strong><\/p>\n<ul>\n<li><a href=\"#sec1\">R\u00fdchla odpove\u010f: \u010do je ISO vo fotografii<\/a><\/li>\n<li><a href=\"#sec2\">\u010co znamen\u00e1 ISO jednoducho a \u013eudsky<\/a><\/li>\n<li><a href=\"#sec3\">Ako ISO ovplyv\u0148uje svetlo, \u0161um a kvalitu fotografie<\/a><\/li>\n<li><a href=\"#sec4\">ISO 100, 400, 800, 1600 a viac \u2013 \u010do tieto \u010d\u00edsla znamenaj\u00fa<\/a><\/li>\n<li><a href=\"#sec5\">Kedy zv\u00fd\u0161i\u0165 ISO a kedy rad\u0161ej nie<\/a><\/li>\n<li><a href=\"#sec6\">ISO pod\u013ea situ\u00e1cie: portr\u00e9t, krajina, interi\u00e9r, \u0161port, noc<\/a><\/li>\n<li><a href=\"#sec7\">ISO vo fotoapar\u00e1te vs ISO v mobile<\/a><\/li>\n<li><a href=\"#sec8\">Interakt\u00edvny blok: ak\u00fa situ\u00e1ciu pr\u00e1ve fot\u00ed\u0161?<\/a><\/li>\n<li><a href=\"#sec9\">Naj\u010dastej\u0161ie chyby pri ISO<\/a><\/li>\n<li><a href=\"#sec10\">ISO a postproces: \u010do sa d\u00e1 zachr\u00e1ni\u0165 a \u010do u\u017e nie<\/a><\/li>\n<li><a href=\"#sec11\">S\u00favisiace \u010dl\u00e1nky<\/a><\/li>\n<li><a href=\"#sec12\">FAQ<\/a><\/li>\n<\/ul>\n<\/nav>\n<section class=\"solution-box\" id=\"sec1\">\n<h2>R\u00fdchla odpove\u010f: \u010do je ISO vo fotografii<\/h2>\n<p>\n<strong>ISO vo fotografii<\/strong> ur\u010duje citlivos\u0165 sn\u00edma\u010da na svetlo. Ni\u017e\u0161ie ISO, napr\u00edklad 100, d\u00e1va \u010distej\u0161\u00ed obraz a menej \u0161umu. Vy\u0161\u0161ie ISO, napr\u00edklad 800, 1600 alebo viac, pom\u00e1ha fotografova\u0165 v slab\u0161om svetle, ale m\u00f4\u017ee zn\u00ed\u017ei\u0165 kvalitu fotografie a prida\u0165 digit\u00e1lny \u0161um. Spr\u00e1vne ISO preto nie je v\u017edy najni\u017e\u0161ie mo\u017en\u00e9, ale tak\u00e9, ktor\u00e9 ti dovol\u00ed spravi\u0165 ostr\u00fa a dobre exponovan\u00fa fotku.\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec2\">\n<h2>\u010co znamen\u00e1 ISO jednoducho a \u013eudsky<\/h2>\n<p>\nAk by sme ISO vysvetlili \u00faplne jednoducho, ide o to, ako silno fotoapar\u00e1t reaguje na dostupn\u00e9 svetlo. Ke\u010f je ISO n\u00edzke, fotoapar\u00e1t potrebuje viac svetla, ale odmen\u00ed sa \u010distej\u0161\u00edm obrazom. Ke\u010f je ISO vy\u0161\u0161ie, fotoapar\u00e1t dok\u00e1\u017ee pracova\u0165 aj pri slab\u0161om svetle, ale za cenu vy\u0161\u0161ieho \u0161umu a niekedy aj ni\u017e\u0161ieho dynamick\u00e9ho rozsahu. In\u00fdmi slovami, ISO nie je \u201ezlep\u0161ova\u010d fotografie\u201c. Je to kompromisn\u00fd n\u00e1stroj, ktor\u00fd ti pom\u00e1ha vtedy, ke\u010f nem\u00e1\u0161 ide\u00e1lne sveteln\u00e9 podmienky.\n<\/p>\n<p>\nPreto sa na ISO neoplat\u00ed pozera\u0165 \u0161t\u00fdlom \u201evysok\u00e9 ISO je zl\u00e9\u201c. Nie je. Zl\u00e9 je len vtedy, ke\u010f ho pou\u017eije\u0161 zbyto\u010dne alebo bez pochopenia s\u00favislost\u00ed. V re\u00e1lnej praxi je \u010dasto ove\u013ea lep\u0161ie ma\u0165 ostr\u00fa fotografiu na ISO 1600 ne\u017e rozmazan\u00fa fotografiu na ISO 100. Toto je jedna z najd\u00f4le\u017eitej\u0161\u00edch vec\u00ed, ktor\u00fa si ve\u013ea za\u010diato\u010dn\u00edkov uvedom\u00ed a\u017e po \u010dase. Kvalita fotografie nestoj\u00ed len na tom, ko\u013eko m\u00e1 \u0161umu. Stoj\u00ed aj na ostrosti, spr\u00e1vnom \u010dase, svetle a pou\u017eitom momente.\n<\/p>\n<p>\nKe\u010f za\u010dne\u0161 ISO vn\u00edma\u0165 t\u00fdmto sp\u00f4sobom, prestane\u0161 sa ho b\u00e1\u0165 a za\u010dne\u0161 ho pou\u017e\u00edva\u0165 rozumnej\u0161ie. To je v praxi omnoho d\u00f4le\u017eitej\u0161ie ne\u017e zapam\u00e4ta\u0165 si pou\u010dku, \u017ee ISO m\u00e1 by\u0165 v\u017edy \u010do najni\u017e\u0161ie.\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec3\">\n<h2>Ako ISO ovplyv\u0148uje svetlo, \u0161um a kvalitu fotografie<\/h2>\n<p>\nISO priamo ovplyv\u0148uje tri veci naraz. Po prv\u00e9 svetlos\u0165 v\u00fdslednej fotografie. Vy\u0161\u0161ie ISO ti pom\u00f4\u017ee spravi\u0165 svetlej\u0161\u00ed z\u00e1ber v situ\u00e1cii, kde je m\u00e1lo svetla. Po druh\u00e9 \u0161um. \u010c\u00edm viac ISO zvy\u0161uje\u0161, t\u00fdm v\u00e4\u010d\u0161ia je \u0161anca, \u017ee sa v obraze objav\u00ed zrno, farebn\u00fd \u0161um alebo strata jemn\u00fdch detailov. A po tretie celkov\u00fd charakter obrazu. Fotografia s pr\u00edli\u0161 vysok\u00fdm ISO m\u00f4\u017ee p\u00f4sobi\u0165 menej \u010disto, menej plasticky a pri agres\u00edvnej\u0161om postprocese sa tieto chyby e\u0161te viac zv\u00fdraznia.\n<\/p>\n<p>\nTo v\u0161ak neznamen\u00e1, \u017ee vy\u0161\u0161ie ISO automaticky zni\u010d\u00ed ka\u017ed\u00fa fotografiu. Modern\u00e9 fotoapar\u00e1ty zvl\u00e1daj\u00fa vy\u0161\u0161ie hodnoty ove\u013ea lep\u0161ie ne\u017e star\u0161ie modely a v mnoh\u00fdch situ\u00e1ci\u00e1ch je ISO 800, 1600 alebo aj viac \u00faplne pou\u017eite\u013en\u00e9. Rozhoduj\u00face je, \u010do fotografuje\u0161, na akom zariaden\u00ed, ako spr\u00e1vne exponuje\u0161 a \u010do bude\u0161 s fotkou robi\u0165 \u010falej. Inak bude\u0161 hodnoti\u0165 ISO pri malej webovej fotke a inak pri ve\u013ekej tla\u010di.\n<\/p>\n<figure>\n<img decoding=\"async\" src=\"https:\/\/fotografovanie.eu\/wp-content\/uploads\/2026\/02\/31ab5e7b74e1d3330e0325200b0568f84130f430d4852e71b3641c46dbad4bf3.jpg.webp\" alt=\"ISO a \u0161um vo fotografii pri vy\u0161\u0161ej citlivosti\" loading=\"lazy\"><figcaption>Vy\u0161\u0161ie ISO pom\u00e1ha vo svetelne n\u00e1ro\u010dn\u00fdch situ\u00e1ci\u00e1ch, ale zvy\u010dajne prin\u00e1\u0161a viac \u0161umu a menej \u010dist\u00fd obraz.<\/figcaption><\/figure>\n<p>\nDobr\u00fd fotograf preto nerie\u0161i ISO izolovane. V\u017edy ho vn\u00edma v s\u00favislosti s clonou, \u010dasom uz\u00e1vierky a t\u00fdm, \u010di je d\u00f4le\u017eitej\u0161ie udr\u017ea\u0165 \u010do naj\u010distej\u0161\u00ed obraz alebo zachr\u00e1ni\u0165 ostr\u00fa fotografiu v n\u00e1ro\u010dn\u00fdch podmienkach.\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec4\">\n<h2>ISO 100, 400, 800, 1600 a viac \u2013 \u010do tieto \u010d\u00edsla znamenaj\u00fa<\/h2>\n<p>\nNaj\u010dastej\u0161ie b\u00fdvaj\u00fa \u013eudia zm\u00e4ten\u00ed z konkr\u00e9tnych \u010d\u00edsiel. \u010co vlastne znamen\u00e1 ISO 100, 400 alebo 1600? V z\u00e1sade ide o r\u00f4zne \u00farovne citlivosti sn\u00edma\u010da. ISO 100 sa pova\u017euje za n\u00edzku, z\u00e1kladn\u00fa hodnotu, ktor\u00e1 zvy\u010dajne pon\u00faka naj\u010distej\u0161\u00ed obraz. ISO 400 je st\u00e1le ve\u013emi bezpe\u010dn\u00e9 a be\u017ene pou\u017eite\u013en\u00e9. ISO 800 je u\u017e hodnota, ktor\u00fa ve\u013ea fotografov pou\u017e\u00edva pri slab\u0161om svetle bez paniky. ISO 1600 a vy\u0161\u0161ie sa \u010dasto pou\u017e\u00edvaj\u00fa v interi\u00e9ri, pri report\u00e1\u017ei, ve\u010der alebo pri pohybe, kde je d\u00f4le\u017eitej\u0161\u00ed kr\u00e1tky \u010das uz\u00e1vierky ne\u017e maxim\u00e1lne \u010dist\u00fd obraz.\n<\/p>\n<div class=\"solution-box\">\n<strong>Jednoduch\u00e1 orient\u00e1cia v ISO hodnot\u00e1ch<\/strong><\/p>\n<ul>\n<li>ISO 100 \u2013 slnko, krajina, maximum kvality<\/li>\n<li>ISO 200 a\u017e 400 \u2013 tie\u0148, be\u017en\u00fd exteri\u00e9r, univerz\u00e1lne fotenie<\/li>\n<li>ISO 800 \u2013 slab\u0161ie svetlo, interi\u00e9r, pohyb<\/li>\n<li>ISO 1600 a viac \u2013 ve\u010der, noc, report\u00e1\u017e, \u0161port v hale<\/li>\n<\/ul>\n<\/div>\n<p>\nTieto \u010d\u00edsla v\u0161ak nikdy neber ako pevn\u00fa pravdu. S\u00fa to orienta\u010dn\u00e9 hodnoty. V skuto\u010dnosti v\u017edy rozhoduje konkr\u00e9tna sc\u00e9na, svetlo, kvalita tvojho fotoapar\u00e1tu a to, \u010do chce\u0161 dosiahnu\u0165. V tom je fotografia \u017eiv\u00e1 \u2013 nefunguje na jeden predpis pre ka\u017ed\u00fa situ\u00e1ciu.\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec5\">\n<h2>Kedy zv\u00fd\u0161i\u0165 ISO a kedy rad\u0161ej nie<\/h2>\n<p>\nISO m\u00e1 zmysel zv\u00fd\u0161i\u0165 vtedy, ke\u010f ti u\u017e clona a \u010das uz\u00e1vierky ned\u00e1vaj\u00fa dostatok priestoru. Napr\u00edklad fot\u00ed\u0161 \u010dloveka v interi\u00e9ri, nechce\u0161 pr\u00edli\u0161 pomal\u00fd \u010das a clonu u\u017e m\u00e1\u0161 otvoren\u00fa tak, ako potrebuje\u0161. Vtedy je zv\u00fd\u0161enie ISO \u00faplne logick\u00e9 a spr\u00e1vne rozhodnutie. Rovnako pri pohybe, pri \u0161portovej fotografii, detoch, koncertoch alebo ve\u010dernom foten\u00ed z ruky. Tam je vy\u0161\u0161ie ISO \u010dasto men\u0161ie zlo ne\u017e rozmazan\u00e1 fotografia.\n<\/p>\n<p>\nNaopak, ISO netreba zvy\u0161ova\u0165 len zo zvyku alebo prevent\u00edvne. Ak fot\u00ed\u0161 krajinu na stat\u00edve, produkt v kontrolovanom svetle alebo sc\u00e9nu, kde sa ni\u010d neh\u00fdbe, je rozumnej\u0161ie dr\u017ea\u0165 ISO ni\u017e\u0161ie a pracova\u0165 s dlh\u0161\u00edm \u010dasom. Ve\u013ea \u013eud\u00ed pou\u017e\u00edva zbyto\u010dne vysok\u00e9 ISO len preto, \u017ee sa nechc\u00fa zamyslie\u0165 nad t\u00fdm, \u010di je pohyb v sc\u00e9ne naozaj probl\u00e9m. A pr\u00e1ve tu sa d\u00e1 u\u0161etri\u0165 ve\u013ea kvality.\n<\/p>\n<p>\nNajd\u00f4le\u017eitej\u0161ie pravidlo teda znie takto: ISO zvy\u0161uj vtedy, ke\u010f ti pom\u00e1ha z\u00edska\u0165 pou\u017eite\u013en\u00fa fotografiu. Nezvy\u0161uj ho len preto, \u017ee je to pohodln\u00e9.\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec6\">\n<h2>ISO pod\u013ea situ\u00e1cie: portr\u00e9t, krajina, interi\u00e9r, \u0161port, noc<\/h2>\n<p>\nISO je omnoho jednoduch\u0161ie pochopi\u0165, ke\u010f ho zasad\u00ed\u0161 do konkr\u00e9tnych situ\u00e1ci\u00ed. Pri portr\u00e9te vonku za denn\u00e9ho svetla si \u010dasto vysta\u010d\u00ed\u0161 s ISO 100 alebo 200, preto\u017ee m\u00e1\u0161 dostatok svetla a vie\u0161 si pom\u00f4c\u0165 aj otvorenou clonou. Pri krajine ide\u0161 zv\u00e4\u010d\u0161a \u010do najni\u017e\u0161ie, lebo cie\u013eom je maxim\u00e1lna kvalita a \u010dasto m\u00f4\u017ee\u0161 pou\u017ei\u0165 stat\u00edv. Pri interi\u00e9ri sa u\u017e veci menia. Svetla b\u00fdva menej, \u013eudia sa h\u00fdbu a ty potrebuje\u0161 udr\u017ea\u0165 rozumn\u00fd \u010das, tak\u017ee ISO 400, 800 alebo 1600 m\u00f4\u017ee by\u0165 \u00faplne norm\u00e1lne.\n<\/p>\n<p>\nPri \u0161porte a pohybe je ISO ve\u013emi \u010dasto tvoj z\u00e1chrann\u00fd mechanizmus. Kr\u00e1tky \u010das uz\u00e1vierky je tu d\u00f4le\u017eitej\u0161\u00ed ne\u017e ide\u00e1lne n\u00edzka citlivos\u0165. A pri no\u010dnej fotografii z\u00e1le\u017e\u00ed na tom, \u010di m\u00e1\u0161 stat\u00edv. Ak \u00e1no, m\u00f4\u017ee\u0161 dr\u017ea\u0165 ISO n\u00edzko. Ak nie, ISO sa st\u00e1va d\u00f4le\u017eitou s\u00fa\u010das\u0165ou kompromisu medzi svetlom a ostros\u0165ou.\n<\/p>\n<div class=\"solution-box\">\n<strong>R\u00fdchly preh\u013ead ISO pod\u013ea typu fotenia<\/strong><\/p>\n<ul>\n<li>portr\u00e9t vonku \u2013 ISO 100 a\u017e 400<\/li>\n<li>krajina \u2013 ISO 100<\/li>\n<li>interi\u00e9r \u2013 ISO 400 a\u017e 1600<\/li>\n<li>\u0161port a pohyb \u2013 ISO pod\u013ea svetla, \u010dasto vy\u0161\u0161ie<\/li>\n<li>noc z ruky \u2013 ISO \u010dasto 800 a\u017e 3200 a viac pod\u013ea techniky<\/li>\n<\/ul>\n<\/div>\n<figure>\n<img decoding=\"async\" src=\"https:\/\/fotografovanie.eu\/wp-content\/uploads\/2026\/02\/eab9d429b457e2a0e9a13ea8e5803df3e6adbb1c84838fce181fdb6294c9d9d5.jpg.webp\" alt=\"no\u010dn\u00e1 fotografia a vysok\u00e9 ISO vo fotografii\" loading=\"lazy\"><figcaption>No\u010dn\u00e9 fotenie je typick\u00e1 situ\u00e1cia, kde vy\u0161\u0161ie ISO \u010dasto d\u00e1va zmysel, ak potrebuje\u0161 foti\u0165 z ruky.<\/figcaption><\/figure>\n<\/section>\n<section class=\"explanation-box\" id=\"sec7\">\n<h2>ISO vo fotoapar\u00e1te vs ISO v mobile<\/h2>\n<p>\nToto je d\u00f4le\u017eit\u00e1 t\u00e9ma, preto\u017ee ve\u013ea \u013eud\u00ed dnes fot\u00ed mobilom a fotoapar\u00e1tom naraz. Hoci princ\u00edp ISO je rovnak\u00fd, v\u00fdsledok sa m\u00f4\u017ee l\u00ed\u0161i\u0165 v\u00fdrazne. Mobiln\u00e9 sn\u00edma\u010de s\u00fa men\u0161ie a na vy\u0161\u0161ie ISO reaguj\u00fa citlivej\u0161ie, \u010do znamen\u00e1, \u017ee \u0161um, strata detailu alebo agres\u00edvne softv\u00e9rov\u00e9 od\u0161umenie sa objavia sk\u00f4r. Pri fotoapar\u00e1te, najm\u00e4 s v\u00e4\u010d\u0161\u00edm sn\u00edma\u010dom, m\u00e1\u0161 v\u00e4\u010d\u0161iu rezervu a vy\u0161\u0161ie ISO b\u00fdva pou\u017eite\u013en\u00e9 vo v\u00e4\u010d\u0161om rozsahu.\n<\/p>\n<p>\nTo v\u0161ak neznamen\u00e1, \u017ee mobil je nepou\u017eite\u013en\u00fd. Len treba vedie\u0165, \u017ee pri mobile zohr\u00e1va ve\u013ek\u00fa \u00falohu aj softv\u00e9r, ktor\u00fd fotku automaticky spracuje. Preto mobiln\u00e9 ISO \u010dasto nevn\u00edma\u0161 tak priamo ako na fotoapar\u00e1te, ale d\u00f4sledky tam s\u00fa \u2013 viac m\u00e4kkosti, menej detailu a niekedy neprirodzen\u00e9 od\u0161umenie. Ak chce\u0161 mobiln\u00e9 fotky zlep\u0161i\u0165, pom\u00f4\u017eu ti aj \u010dl\u00e1nky<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/ako-fotit-v-noci-mobilom\/\">ako foti\u0165 v noci mobilom<\/a><br \/>\na<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/ako-upravit-fotky-v-snapseede-rychly-postproces-v-mobile-ktory-dava-zmysel-aj-pred-tlacou\/\">ako upravi\u0165 fotky v Snapseede<\/a>.\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec8\">\n<h2>Interakt\u00edvny blok: ak\u00fa situ\u00e1ciu pr\u00e1ve fot\u00ed\u0161?<\/h2>\n<p>\nToto je najpraktickej\u0161ia \u010das\u0165 \u010dl\u00e1nku. Rozklikni si situ\u00e1ciu, ktor\u00e1 je ti najbli\u017e\u0161ia, a r\u00fdchlo zist\u00ed\u0161, ako nad ISO rozm\u00fd\u0161\u013ea\u0165 v konkr\u00e9tnom type fotenia.\n<\/p>\n<details>\n<summary>Fot\u00edm vonku cez de\u0148<\/summary>\n<p>\nAk je dostatok svetla, za\u010dni na ISO 100. Vy\u0161\u0161ie ISO m\u00e1 zmysel len vtedy, ak potrebuje\u0161 v\u00fdrazne krat\u0161\u00ed \u010das pri pohybe alebo ak fot\u00ed\u0161 v tieni a nechce\u0161 pr\u00edli\u0161 otv\u00e1ra\u0165 clonu.\n<\/p>\n<\/details>\n<details>\n<summary>Fot\u00edm portr\u00e9t<\/summary>\n<p>\nPri portr\u00e9te je v\u00e4\u010d\u0161inou cie\u013e dr\u017ea\u0165 ISO \u010do najni\u017e\u0161ie, ale nie za cenu pr\u00edli\u0161 pomal\u00e9ho \u010dasu. Ak fot\u00ed\u0161 \u010dloveka z ruky, rad\u0161ej zv\u00fd\u0161 ISO trochu vy\u0161\u0161ie, ne\u017e aby si riskoval rozmazan\u00fa tv\u00e1r.\n<\/p>\n<\/details>\n<details>\n<summary>Fot\u00edm v interi\u00e9ri<\/summary>\n<p>\nV interi\u00e9ri sa vy\u0161\u0161iemu ISO \u010dasto nevyhne\u0161. Za\u010dni pribli\u017ene na ISO 400 a pod\u013ea svetla cho\u010f vy\u0161\u0161ie. D\u00f4le\u017eit\u00e9 je udr\u017ea\u0165 rozumn\u00fd \u010das uz\u00e1vierky a nestrati\u0165 ostros\u0165.\n<\/p>\n<\/details>\n<details>\n<summary>Fot\u00edm \u0161port alebo pohyb<\/summary>\n<p>\nTu je prioritou \u010das uz\u00e1vierky, nie n\u00edzke ISO. Ak potrebuje\u0161 1\/500 alebo 1\/1000 sekundy, ISO mus\u00ed \u00eds\u0165 hore pod\u013ea svetla. Je to \u00faplne spr\u00e1vne rozhodnutie.\n<\/p>\n<\/details>\n<details>\n<summary>Fot\u00edm v noci<\/summary>\n<p>\nAk m\u00e1\u0161 stat\u00edv, nechaj ISO n\u00edzko. Ak fot\u00ed\u0161 z ruky, ISO je \u010dasto nevyhnutn\u00e9 zv\u00fd\u0161i\u0165. D\u00f4le\u017eit\u00e9 je vedie\u0165, \u017ee mierny \u0161um je \u010dasto prijate\u013enej\u0161\u00ed ne\u017e roztrasen\u00e1 a nepou\u017eite\u013en\u00e1 fotka.\n<\/p>\n<\/details>\n<\/section>\n<section class=\"warning-box\" id=\"sec9\">\n<h2>Naj\u010dastej\u0161ie chyby pri ISO<\/h2>\n<p>\nNaj\u010dastej\u0161ie chyby pri ISO s\u00fa dve a s\u00fa \u00faplne opa\u010dn\u00e9. Prv\u00e1 je zbyto\u010dne vysok\u00e9 ISO, ke\u010f na to nie je d\u00f4vod. Druh\u00e1 je panick\u00fd strach zv\u00fd\u0161i\u0165 ISO aj vtedy, ke\u010f to situ\u00e1cia jasne vy\u017eaduje. Obe ved\u00fa k hor\u0161iemu v\u00fdsledku. Bu\u010f dostane\u0161 zbyto\u010dne za\u0161umen\u00fa fotku, alebo naopak tmav\u00fa a rozmazan\u00fa.\n<\/p>\n<div class=\"mistake-box\">\n<strong>Chyba \u010d.1 \u2013 dr\u017ea\u0165 ISO n\u00edzko za ka\u017ed\u00fa cenu<\/strong><\/p>\n<p>\nRozmazan\u00e1 fotografia je ve\u013emi \u010dasto hor\u0161\u00ed probl\u00e9m ne\u017e mierny \u0161um. Ak sa objekt h\u00fdbe alebo fot\u00ed\u0161 z ruky v slabom svetle, vy\u0161\u0161ie ISO m\u00f4\u017ee by\u0165 spr\u00e1vne rie\u0161enie.\n<\/p>\n<\/div>\n<div class=\"mistake-box\">\n<strong>Chyba \u010d.2 \u2013 zvy\u0161ova\u0165 ISO automaticky<\/strong><\/p>\n<p>\nAk sa ni\u010d neh\u00fdbe a m\u00e1\u0161 oporu alebo stat\u00edv, zbyto\u010dne sa pripravuje\u0161 o kvalitu. Vtedy je rozumnej\u0161ie necha\u0165 ISO ni\u017e\u0161ie a pracova\u0165 s \u010dasom.\n<\/p>\n<\/div>\n<div class=\"mistake-box\">\n<strong>Chyba \u010d.3 \u2013 hodnoti\u0165 ISO bez kontextu<\/strong><\/p>\n<p>\nTo, \u010do je prijate\u013en\u00e9 ISO pre web, nemus\u00ed by\u0165 ide\u00e1lne pre ve\u013ek\u00fa tla\u010d. Z\u00e1le\u017e\u00ed na tom, kde a ako bude\u0161 fotku pou\u017e\u00edva\u0165.\n<\/p>\n<\/div>\n<div class=\"fc-highlight\">\nNajlep\u0161ia fotografia nevznik\u00e1 vtedy, ke\u010f je ISO za ka\u017ed\u00fa cenu najni\u017e\u0161ie. Vznik\u00e1 vtedy, ke\u010f je ISO zvolen\u00e9 rozumne vzh\u013eadom na svetlo, pohyb a cie\u013e fotografie.\n<\/div>\n<\/section>\n<section class=\"explanation-box\" id=\"sec10\">\n<h2>ISO a postproces: \u010do sa d\u00e1 zachr\u00e1ni\u0165 a \u010do u\u017e nie<\/h2>\n<p>\nVe\u013ea \u013eud\u00ed d\u00fafa, \u017ee ak je fotka trochu za\u0161umen\u00e1, v\u0161etko nesk\u00f4r vyrie\u0161i \u00faprava. Pravda je tak\u00e1, \u017ee postproces vie pom\u00f4c\u0165, ale nie z\u00e1zra\u010dne. Modern\u00e9 editory dok\u00e1\u017eu \u0161um pekne stiahnu\u0165, no \u010dasto za cenu detailu a text\u00fary. \u010c\u00edm hor\u0161\u00ed je zdrojov\u00fd s\u00fabor, t\u00fdm vidite\u013enej\u0161\u00ed kompromis pr\u00edde pri \u00faprave. Preto je v\u017edy lep\u0161ie spravi\u0165 \u010do najlep\u0161iu fotografiu u\u017e pri foten\u00ed, ne\u017e sa spolieha\u0165 na z\u00e1chranu v po\u010d\u00edta\u010di.\n<\/p>\n<p>\nAk chce\u0161 vedie\u0165 viac o \u00faprave fotografi\u00ed po nafoten\u00ed, pokra\u010duj cez<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/ako-upravit-fotky-v-lightroome-zaklady-postprocesu-ktore-menia-priemerny-zaber-na-dobru-fotografiu\/\">Lightroom workflow<\/a>,<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/ako-pracovat-s-expoziciou-pri-uprave-fotiek-highlights-shadows-whites-a-blacks-konecne-jednoducho\/\">pr\u00e1cu s expoz\u00edciou pri \u00faprave<\/a><br \/>\na<br \/>\n<a href=\"https:\/\/fotografovanie.eu\/ako-upravit-farby-na-fotke-saturacia-vibrance-white-balance-a-farebna-harmonia-bez-chaosu\/\">\u00fapravu farieb na fotke<\/a>.\n<\/p>\n<\/section>\n<section class=\"cta-box\">\n<h2>Zlep\u0161ite svoje fotografick\u00e9 zru\u010dnosti<\/h2>\n<p>\nKe\u010f pochop\u00ed\u0161 ISO, prestane\u0161 nastavova\u0165 fotoapar\u00e1t naslepo. Bude\u0161 vedie\u0165, kedy sa oplat\u00ed dr\u017ea\u0165 citlivos\u0165 n\u00edzko a kedy je rozumnej\u0161ie ju zv\u00fd\u0161i\u0165, aby si z\u00edskal ostr\u00fa a pou\u017eite\u013en\u00fa fotografiu.\n<\/p>\n<p>\nObjav \u010fal\u0161ie praktick\u00e9 n\u00e1vody:\n<\/p>\n<p>\n<a href=\"https:\/\/fotografovanie.eu\/100-tipov-ako-fotit-lepsie\/\" class=\"btn\"><br \/>\nPozrie\u0165 fotografick\u00e9 tipy<br \/>\n<\/a>\n<\/p>\n<\/section>\n<section class=\"explanation-box\" id=\"sec11\">\n<h2>S\u00favisiace \u010dl\u00e1nky<\/h2>\n<div class=\"solution-box\">\n<ul>\n<li><a href=\"https:\/\/fotografovanie.eu\/expozicny-trojuholnik\/\">Expozi\u010dn\u00fd trojuholn\u00edk<\/a><\/li>\n<li><a href=\"https:\/\/fotografovanie.eu\/ako-nastavit-fotoaparat\/\">Ako nastavi\u0165 fotoapar\u00e1t<\/a><\/li>\n<li><a href=\"https:\/\/fotografovanie.eu\/clona-vo-fotografii\/\">Clona vo fotografii<\/a><\/li>\n<li><a href=\"https:\/\/fotografovanie.eu\/manualny-rezim-fotoaparatu\/\">Manu\u00e1lny re\u017eim fotoapar\u00e1tu<\/a><\/li>\n<li><a href=\"https:\/\/fotografovanie.eu\/zaklady-fotografovania-kompletny-sprievodca-pre-zaciatocnikov\/\">Z\u00e1klady fotografovania<\/a><\/li>\n<li><a href=\"https:\/\/fotografovanie.eu\/ako-fotit-v-noci-mobilom\/\">Ako foti\u0165 v noci mobilom<\/a><\/li>\n<\/ul>\n<\/div>\n<\/section>\n<section class=\"faq\" id=\"sec12\">\n<h2>\u010cast\u00e9 ot\u00e1zky<\/h2>\n<details>\n<summary>\u010co znamen\u00e1 ISO vo fotografii?<\/summary>\n<p>\nISO ur\u010duje citlivos\u0165 sn\u00edma\u010da fotoapar\u00e1tu na svetlo. Vy\u0161\u0161ie ISO pom\u00e1ha pri slab\u0161om svetle, ale m\u00f4\u017ee zv\u00fd\u0161i\u0165 \u0161um.\n<\/p>\n<\/details>\n<details>\n<summary>Ktor\u00e9 ISO je najlep\u0161ie?<\/summary>\n<p>\nNaj\u010distej\u0161\u00ed obraz b\u00fdva spravidla pri ISO 100, ale najlep\u0161ie ISO v praxi je tak\u00e9, ktor\u00e9 ti dovol\u00ed spravi\u0165 ostr\u00fa a spr\u00e1vne exponovan\u00fa fotku v danej situ\u00e1cii.\n<\/p>\n<\/details>\n<details>\n<summary>Kedy pou\u017ei\u0165 ISO 1600 alebo viac?<\/summary>\n<p>\nNaj\u010dastej\u0161ie pri slabom svetle, v interi\u00e9ri, ve\u010der, pri pohybe alebo v\u0161ade tam, kde potrebuje\u0161 krat\u0161\u00ed \u010das uz\u00e1vierky a nem\u00e1\u0161 dos\u0165 svetla.\n<\/p>\n<\/details>\n<details>\n<summary>Je vysok\u00e9 ISO v\u017edy zl\u00e9?<\/summary>\n<p>\nNie. Vysok\u00e9 ISO je kompromis. V mnoh\u00fdch situ\u00e1ci\u00e1ch je lep\u0161ie ne\u017e rozmazan\u00e1 alebo tmav\u00e1 fotografia.\n<\/p>\n<\/details>\n<details>\n<summary>Je ISO v mobile rovnak\u00e9 ako vo fotoapar\u00e1te?<\/summary>\n<p>\nPrinc\u00edp je rovnak\u00fd, ale mobily maj\u00fa men\u0161ie sn\u00edma\u010de, tak\u017ee pri vy\u0161\u0161om ISO b\u00fdva kvalita obrazu citlivej\u0161ia na \u0161um a od\u0161umenie.\n<\/p>\n<\/details>\n<\/section>\n<p><\/main><\/p>\n<p><script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Article\",\n \"headline\": \"ISO vo fotografii \u2013 \u010do znamen\u00e1 ISO 100, 400, 800 a viac a kedy ho naozaj meni\u0165\",\n \"description\": \"Zisti, \u010do je ISO vo fotografii, ako ovplyv\u0148uje \u0161um, svetlo a kvalitu z\u00e1beru a kedy sa oplat\u00ed ISO zv\u00fd\u0161i\u0165. Praktick\u00fd n\u00e1vod pre za\u010diato\u010dn\u00edkov aj pokro\u010dil\u00fdch s pr\u00edkladmi pod\u013ea situ\u00e1cie.\",\n \"inLanguage\": \"sk\",\n \"mainEntityOfPage\": {\n   \"@type\": \"WebPage\",\n   \"@id\": \"https:\/\/fotografovanie.eu\/iso-vo-fotografii\/\"\n },\n \"image\": \"https:\/\/fotografovanie.eu\/wp-content\/uploads\/2026\/02\/9f449c8d1f9c092dd8267f1218ef45813473a60ce88fd6ebf752c53d7a05de96.jpg.webp\",\n \"author\": {\n   \"@type\": \"Organization\",\n   \"name\": \"Fotografovanie.eu\"\n },\n \"publisher\": {\n   \"@type\": \"Organization\",\n   \"name\": \"Fotografovanie.eu\",\n   \"logo\": {\n     \"@type\": \"ImageObject\",\n     \"url\": \"https:\/\/fotografovanie.eu\/wp-content\/uploads\/2026\/01\/cropped-0aaf3e3322a519e411873510629b829197a60c1506f5632424da96c13ebeedf4-2.png\"\n   }\n }\n}\n<\/script><\/p>\n<p><script type=\"application\/ld+json\">\n{\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"FAQPage\",\n \"mainEntity\": [\n   {\n     \"@type\": \"Question\",\n     \"name\": \"\u010co znamen\u00e1 ISO vo fotografii?\",\n     \"acceptedAnswer\": {\n       \"@type\": \"Answer\",\n       \"text\": \"ISO ur\u010duje citlivos\u0165 sn\u00edma\u010da fotoapar\u00e1tu na svetlo. 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Vysok\u00e9 ISO je kompromis. V mnoh\u00fdch situ\u00e1ci\u00e1ch je lep\u0161ie ne\u017e rozmazan\u00e1 alebo tmav\u00e1 fotografia.\"\n     }\n   },\n   {\n     \"@type\": \"Question\",\n     \"name\": \"Je ISO v mobile rovnak\u00e9 ako vo fotoapar\u00e1te?\",\n     \"acceptedAnswer\": {\n       \"@type\": \"Answer\",\n       \"text\": \"Princ\u00edp je rovnak\u00fd, ale mobily maj\u00fa men\u0161ie sn\u00edma\u010de, tak\u017ee pri vy\u0161\u0161om ISO b\u00fdva kvalita obrazu citlivej\u0161ia na \u0161um a od\u0161umenie.\"\n     }\n   }\n ]\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>ISO vo fotografii \u2013 \u010do znamen\u00e1 ISO 100, 400, 800 a viac a kedy ho naozaj meni\u0165 ISO patr\u00ed medzi tri z\u00e1kladn\u00e9 nastavenia, ktor\u00e9 rozhoduj\u00fa o tom, ako bude fotografia vyzera\u0165. Ak sa u\u010d\u00ed\u0161 fotografova\u0165, v\u00fdraz ISO vo fotografii na teba naraz\u00ed ve\u013emi r\u00fdchlo. A je to logick\u00e9. ISO patr\u00ed spolu s clonou a \u010dasom [&#8230;]\n","protected":false},"author":4,"featured_media":12964,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,4],"tags":[129,94],"class_list":["post-14065","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fotografovanie","category-lifestyle","tag-pre-zaciiatocnikov","tag-techniky-fotenia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ISO vo fotografii \u2013 \u010do znamen\u00e1 ISO 100, 400, 800 a viac a kedy ho naozaj meni\u0165 \u2013 Fotografovanie.eu<\/title>\n<meta name=\"description\" content=\"ISO vo fotografii \u2013 \u010do znamen\u00e1 ISO 100, 400, 800 a viac a kedy ho naozaj meni\u0165 ISO patr\u00ed medzi tri z\u00e1kladn\u00e9 nastavenia, ktor\u00e9 rozhoduj\u00fa o tom, ako bude Praktick\u00e9 tipy, n\u00e1vody a trendy zo sveta fotografie. 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