{"id":23938,"date":"2019-02-05T08:45:31","date_gmt":"2019-02-05T07:45:31","guid":{"rendered":"https:\/\/www.fotolab.cz\/blog\/?p=23938"},"modified":"2019-02-05T17:49:33","modified_gmt":"2019-02-05T16:49:33","slug":"pentax-da-11-18mm","status":"publish","type":"post","link":"https:\/\/www.fotolab.cz\/blog\/pentax-da-11-18mm\/","title":{"rendered":"HD PENTAX-DA 11-18mm F2.8 ED DC AW: p\u0159edstaven\u00ed novinky"},"content":{"rendered":"<p><strong>Objektiv HD PENTAX-DA 11-18mm F2.8 ED DC AW p\u0159in\u00e1\u0161\u00ed \u00fa\u010dinn\u00fd n\u00e1stroj pro tvrobu zejm\u00e9na krajin\u00e1\u0159\u016f a&nbsp;fotograf\u016f architektury, \u010di interi\u00e9r\u016f. Jak\u00e9 jsou jeho siln\u00e9 str\u00e1nky a&nbsp;jak\u00e1 je podrobn\u011bj\u0161\u00ed technick\u00e1 specifikace se dozv\u00edte v<\/strong><strong> p\u0159\u00edsp\u011bvku. <\/strong><\/p>\n<p><!--more--><\/p>\n<p><strong>HD PENTAX-DA 11-18mm F2.8 ED DC AW <\/strong>je nejnov\u011bj\u0161\u00edm p\u0159\u00edr\u016fstkem v&nbsp;nov\u00e9 generaci objektiv\u016f s\u00e9rie Star. Objektiv vynik\u00e1 v\u00fdjime\u010dnou kvalitou obrazu i&nbsp;p\u0159i pln\u011b otev\u0159en\u00e9 clon\u011b. Mezi hlavn\u00ed p\u0159ednosti tohoto objektivu tak\u00e9 pat\u0159\u00ed fok\u00e1ln\u00ed rozsah se zachov\u00e1n\u00edm konstantn\u00ed sv\u011btelnosti f\/2.8. Objektiv je exkluzivn\u011b zkonstruov\u00e1n pro pou\u017e\u00edv\u00e1n\u00ed s&nbsp;digit\u00e1ln\u00edmi fotoapar\u00e1ty PENTAX APS-C.<\/p>\n<p><strong>Odhadovan\u00e1 dostupnost:<\/strong> po 22.&nbsp;2.&nbsp;2019<br \/>\n<strong>P\u0159edpokl\u00e1dan\u00e1 cena:<\/strong> 35&nbsp;590&nbsp;K\u010d<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-23942\" src=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2019\/02\/Pentax-11-18mm.jpg\" alt=\"\" width=\"410\" height=\"305\" srcset=\"https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2019\/02\/Pentax-11-18mm.jpg 610w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2019\/02\/Pentax-11-18mm-300x223.jpg 300w, https:\/\/www.fotolab.cz\/blog\/wp-content\/uploads\/2019\/02\/Pentax-11-18mm-50x37.jpg 50w\" sizes=\"(max-width: 410px) 100vw, 410px\" \/>Fotografov\u00e9 se mohou spolehnout na zv\u00fd\u0161enou odolnost v\u016f\u010di vnik\u00e1n\u00ed prachu a&nbsp;nep\u0159\u00edzni po\u010das\u00ed. <\/strong>V konstrukci jsou za\u010dlen\u011bny kovov\u00e9 prvky kolem barelu objektivu, kter\u00e9 br\u00e1n\u00ed kondenzaci vlhkosti na vnit\u0159n\u00edm mechanismu, a&nbsp;to bez vlivu na \u010dinnost zaost\u0159ovac\u00edho krou\u017eku. Kovov\u00fd r\u00e1m konstrukce efektivn\u011b sni\u017euje p\u0159enos tepla na objektiv.<\/p>\n<p><strong>Unik\u00e1tn\u00ed konstrukce aretace zaost\u0159en\u00ed Focus Clamp Mechanism<\/strong> dovoluje fotografovi aretaci zaost\u0159en\u00e9 roviny, i&nbsp;p\u0159es ot\u00e1\u010den\u00ed zaost\u0159ovac\u00edho krou\u017eku. To zlep\u0161uje ovl\u00e1d\u00e1n\u00ed p\u0159i sn\u00edm\u00e1n\u00ed subjekt\u016f jako jsou krajiny a&nbsp;scen\u00e9rie s&nbsp;hv\u011bzdnou oblohou, kdy je vy\u017eadov\u00e1no velmi p\u0159esn\u00e9 zaost\u0159en\u00ed b\u011bhem dlouh\u00fdch expozi\u010dn\u00edch \u010das\u016f.<\/p>\n<p><strong>Objektiv m\u00e1 prvot\u0159\u00eddn\u00ed, n\u011bkolikan\u00e1sobn\u00e9 vrstvy HD Coating<\/strong>,* kter\u00e9 sni\u017euj\u00ed pr\u016fm\u011brnou odrazivost ve viditeln\u00e9m spektru na m\u00e9n\u011b jak 50% ve srovn\u00e1n\u00ed s&nbsp;konven\u010dn\u00edmi n\u011bkolikan\u00e1sobn\u00fdmi vrstvami. \u00a0Efektivn\u011b je sn\u00ed\u017een v\u00fdskyt duch\u016f i&nbsp;v&nbsp;nep\u0159\u00edzniv\u00fdch podm\u00ednk\u00e1ch protisv\u011btla.<br \/>\n* HD = High Definition.<\/p>\n<p><strong>Dal\u0161\u00ed vlastnosti<\/strong><\/p>\n<ul>\n<li><strong>Tich\u00fd a&nbsp;jemn\u00fd chod AF<\/strong> motorem DC<\/li>\n<li><strong>Kulat\u00e9 lamely clony<\/strong>, 9 lamel vytv\u00e1\u0159\u00ed p\u0159irozen\u00fd a&nbsp;n\u00e1dhern\u00fd bokeh (rozost\u0159en\u00ed) s&nbsp;minim\u00e1ln\u00edm efektem pruhov\u00e1n\u00ed bodov\u00fdch sv\u011bteln\u00fdch zdroj\u016f<\/li>\n<li><strong>Quick-Shift Focus System <\/strong>s okam\u017eitou zm\u011bnou na manu\u00e1ln\u00ed ost\u0159en\u00ed potom co je subjekt zaost\u0159en pomoc\u00ed AF stisknut\u00edm spou\u0161t\u011b do poloviny; manu\u00e1ln\u00ed nastaven\u00ed zaost\u0159en\u00ed je mo\u017eno pou\u017e\u00edt kdykoliv b\u011bhem \u010dinnosti AF<\/li>\n<li><strong>SP (Super Protect) vrstva<\/strong>, kter\u00e1 chr\u00e1n\u00ed p\u0159edn\u00ed \u010d\u00e1st objektivu p\u0159ed prachem a&nbsp;mastn\u00fdmi otisky<\/li>\n<\/ul>\n<p><strong>Fok\u00e1ln\u00ed d\u00e9lka: <\/strong>11-18mm<br \/>\n<strong>(ekvivalent form\u00e1tu 35mm): <\/strong>17-27.5mm<br \/>\n<strong>Maxim\u00e1ln\u00ed sv\u011btelnost: <\/strong>F2.8<br \/>\n<strong>Nejvy\u0161\u0161\u00ed hodnota clony: <\/strong>F22<br \/>\n<strong>Konstrukce: <\/strong>16 element\u016f ve 11 skupin\u00e1ch<br \/>\n<strong>\u00dahel z\u00e1b\u011bru: <\/strong>104-76\u00b0<br \/>\n<strong>Typ bajonetu: <\/strong>KAF3<br \/>\n<strong>Minim\u00e1ln\u00ed zaost\u0159ovac\u00ed vzd\u00e1lenost: <\/strong>0.3m (0.98 ft.)<br \/>\n<strong>Maxim\u00e1ln\u00ed zv\u011bt\u0161en\u00ed: <\/strong>0.10x<br \/>\n<strong>Pr\u016fm\u011br filtru: <\/strong>82mm<br \/>\n<strong>Ovl\u00e1d\u00e1n\u00ed clony: <\/strong>Pln\u011b automatick\u00e9<br \/>\n<strong>Po\u010det lamel: <\/strong>9 kulat\u00e1<br \/>\n<strong>Maxim\u00e1ln\u00ed pr\u016fm\u011br x&nbsp;d\u00e9lka <\/strong>cca.90mm x&nbsp;100mm<br \/>\n<strong>Hmotnost <\/strong>cca 704g (se sl. clonou cca 739g)<br \/>\n<strong>V balen\u00ed <\/strong>Slune\u010dn\u00ed clona, p\u0159edn\u00ed krytka, zadn\u00ed krytka, m\u011bkk\u00e9 pouzdro<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Objektiv HD PENTAX-DA 11-18mm F2.8 ED DC AW p\u0159in\u00e1\u0161\u00ed \u00fa\u010dinn\u00fd n\u00e1stroj pro tvrobu zejm\u00e9na krajin\u00e1\u0159\u016f a&nbsp;fotograf\u016f architektury, \u010di interi\u00e9r\u016f. Jak\u00e9 jsou jeho siln\u00e9 str\u00e1nky a&nbsp;jak\u00e1 je podrobn\u011bj\u0161\u00ed technick\u00e1 specifikace se dozv\u00edte v&nbsp;p\u0159\u00edsp\u011bvku.<\/p>\n","protected":false},"author":12,"featured_media":23942,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[18,407,610],"tags":[611,1275,434,1278,1276],"class_list":["post-23938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novinky","category-objektivy","category-pentax","tag-pentax","tag-novinka-2019","tag-objektiv","tag-pentax-11-18mm","tag-specifikace"],"wppr_data":{"cwp_meta_box_check":"No"},"_links":{"self":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts\/23938"}],"collection":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/comments?post=23938"}],"version-history":[{"count":6,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts\/23938\/revisions"}],"predecessor-version":[{"id":23946,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/posts\/23938\/revisions\/23946"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/media\/23942"}],"wp:attachment":[{"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/media?parent=23938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/categories?post=23938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fotolab.cz\/blog\/wp-json\/wp\/v2\/tags?post=23938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}