{"id":15001,"date":"2017-10-11T09:38:07","date_gmt":"2017-10-11T07:38:07","guid":{"rendered":"https:\/\/www.fotolab.cz\/blog\/?p=15001"},"modified":"2017-11-09T11:34:07","modified_gmt":"2017-11-09T10:34:07","slug":"novy-sony-rx10-mark-iv-prinasi-vylepseny-autofokus-a-svetelny-objektiv-se-25x-zoomem","status":"publish","type":"post","link":"https:\/\/www.fotolab.cz\/blog\/novy-sony-rx10-mark-iv-prinasi-vylepseny-autofokus-a-svetelny-objektiv-se-25x-zoomem\/","title":{"rendered":"Nov\u00fd Sony RX10 Mark IV p\u0159in\u00e1\u0161\u00ed vylep\u0161en\u00fd autofokus a sv\u011bteln\u00fd objektiv s 25x zoomem"},"content":{"rendered":"

Spole\u010dnost Sony p\u0159edstavila nov\u00fd model z obl\u00edben\u00e9 \u0159ady Bridge fotoapar\u00e1t\u016f s univerz\u00e1ln\u00edm rozsahem zoomu<\/a>. Samoz\u0159ejm\u011b nechyb\u00ed pro \u0159adu RX10 tradi\u010dn\u00ed sv\u011bteln\u00fd objektiv s univerz\u00e1ln\u00edm rozsahem zoomu. Sony RX10 Mark IV nav\u00edc nov\u011b p\u0159inese nap\u0159\u00edklad vy\u0161\u0161\u00ed rychlost automatick\u00e9ho ost\u0159en\u00ed nebo rychlej\u0161\u00ed s\u00e9riov\u00e9 sn\u00edm\u00e1n\u00ed.<\/strong>\"Novinka<\/a><\/p>\n

P\u016fsobiv\u00fd fotoapar\u00e1t RX10 IV<\/strong> je vybaven nejnov\u011bj\u0161\u00edm typem jednopalcov\u00e9ho vrstven\u00e9ho obrazov\u00e9ho sn\u00edma\u010de Exmor RS CMOS s rozli\u0161en\u00edm 20,1 Mpx<\/strong> a DRAM \u010dipem<\/strong>, kter\u00fd doprov\u00e1z\u00ed v\u00fdkonn\u00fd obrazov\u00fd procesor BIONZ X\u2122<\/strong> s\u00a0pomocn\u00fdm \u010dipem LSI. V\u0161echny tyto kl\u00ed\u010dov\u00e9 komponenty funguj\u00ed spole\u010dn\u011b tak, aby maximalizovaly celkovou rychlost fungov\u00e1n\u00ed a v\u00fdkonu, dokonale zaji\u0161\u0165uj\u00ed nejvy\u0161\u0161\u00ed mo\u017enou kvalitu sn\u00edmk\u016f a videa<\/strong> v\u00a0cel\u00e9m rozsahu ohniskov\u00fdch vzd\u00e1lenost\u00ed objektivu 24-600 mm (p\u0159epo\u010d\u00edt\u00e1no na ekvivalent Full Frame)<\/strong>.<\/p>\n

Rychl\u00e9 ost\u0159en\u00ed, rychl\u00e9 sn\u00edm\u00e1n\u00ed<\/h2>\n

Jako v\u016fbec prvn\u00ed ze s\u00e9rie fotoapar\u00e1t\u016f Sony RX10 je nov\u00fd model RX10 IV<\/strong> vybaven rychl\u00fdm hybridn\u00edm syst\u00e9mem automatick\u00e9ho ost\u0159en\u00ed<\/strong> (Fast Hybrid AF), kter\u00fd kombinuje v\u00fdhody 315 bod\u016f AF f\u00e1zov\u00e9 detekce<\/strong>, kter\u00e9 pokr\u00fdvaj\u00ed p\u0159ibli\u017en\u011b 65 % plochy sn\u00edma\u010de<\/strong>, s\u00a0v\u00fdhodami autofokusu na b\u00e1zi detekce kontrastu. To umo\u017e\u0148uje fotoapar\u00e1tu zaost\u0159it b\u011bhem pouh\u00fdch 0,03 sekundy<\/strong>ii<\/sup>. Toto vysokorychlostn\u00ed ost\u0159en\u00ed dopl\u0148uje velk\u00fd rozsah ohniskov\u00fdch vzd\u00e1lenost\u00ed objektivu 24-600 mm<\/strong>iv<\/sup> a spole\u010dn\u011b zaji\u0161\u0165uj\u00ed, aby byly v\u0161echny objekty zachyceny ost\u0159e a s\u00a0p\u0159esn\u00fdmi detaily<\/strong>.<\/p>\n

\"Novinka<\/a><\/p>\n

Krom\u011b toho vyu\u017e\u00edv\u00e1 model RX10 IV<\/strong> jako v\u016fbec prvn\u00ed mezi fotoapar\u00e1ty \u0159ady Cyber-shot technologii High-density Tracking AF. Tato vysp\u011bl\u00e1 technologie, kter\u00e1 byla d\u0159\u00edve k\u00a0dispozici pouze u n\u011bkolika vybran\u00fdch uzn\u00e1van\u00fdch \u0159ad fotoapar\u00e1t\u016f Sony s\u00a0v\u00fdm\u011bnn\u00fdmi objektivy, soust\u0159ed\u00ed ost\u0159\u00edc\u00ed body okolo objektu, kter\u00fd chce zaost\u0159it, aby tak zv\u00fd\u0161ila p\u0159esnost sledov\u00e1n\u00ed a ost\u0159en\u00ed. Umo\u017e\u0148uje tak snadn\u00e9 zachycen\u00ed i t\u011bch nejm\u00e9n\u011b p\u0159edv\u00eddateln\u00fdch objekt\u016f, v\u010detn\u011b rychle se pohybuj\u00edc\u00edch atlet\u016f \u010di ptactva v\u00a0letu.<\/p>\n

\n
\"Novinka<\/a><\/div>\n
\"Novinka<\/a><\/div>\n<\/div>\n

K\u00a0dal\u0161\u00edm vylep\u0161en\u00edm autofokusu, kter\u00e9 p\u0159in\u00e1\u0161\u00ed nov\u00fd fotoapar\u00e1t RX10 IV<\/strong>, pat\u0159\u00ed zdokonalen\u00e1 verze funkc\u00ed Eye AF<\/strong>, Touch Focus<\/strong> a limit\u00e9r vzd\u00e1lenosti ost\u0159en\u00ed<\/strong>[ii]. Nastaven\u00ed AF-ON je programovateln\u00e9, stejn\u011b je tomu tak\u00e9 u mno\u017estv\u00ed ost\u0159\u00edc\u00edch re\u017eim\u016f v\u010detn\u011b AF-S, AF-C a AF-A, jejich\u017e nastaven\u00ed je jednodu\u0161e mo\u017en\u00e9 upravit podle u\u017eivatelov\u00fdch preferenc\u00ed a situace, v\u00a0n\u00ed\u017e se fotografuje.\"Novinka<\/a><\/p>\n

Ide\u00e1ln\u00edm dopl\u0148kem syst\u00e9mu autofokusu je u RX10 IV s\u00e9riov\u00e9 vysokorychlostn\u00ed sn\u00edm\u00e1n\u00ed<\/strong>, kter\u00e9 dosahuje rychlosti a\u017e 24 sn.\/s<\/strong>iii<\/sup> s\u00a0\u00fapln\u00fdm sledov\u00e1n\u00edm AF\/AE a p\u016fsobivou kapacitou vyrovn\u00e1vac\u00ed pam\u011bti a\u017e 249 sn\u00edmk\u016f<\/strong>[iii].\u00a0 D\u00edky z\u00e1sadn\u00edmu vylep\u0161en\u00ed v\u00fdkonu zpracov\u00e1n\u00ed do\u0161lo u tohoto nov\u00e9ho fotoapar\u00e1tu k\u00a0podstatn\u00e9mu zkr\u00e1cen\u00ed zpo\u017ed\u011bn\u00ed elektronick\u00e9ho hled\u00e1\u010dku<\/strong> b\u011bhem s\u00e9riov\u00e9ho sn\u00edm\u00e1n\u00ed. Fotografov\u00e9 tak mohou s absolutn\u00ed jistotou zachytit ten nejd\u016fle\u017eit\u011bj\u0161\u00ed okam\u017eik. P\u0159i prohl\u00ed\u017een\u00ed vyfocen\u00fdch sn\u00edmk\u016f je tak\u00e9 mo\u017en\u00e9 pro v\u011bt\u0161\u00ed p\u0159ehlednost zobrazovat sn\u00edmky po\u0159\u00edzen\u00e9 v\u00a0s\u00e9ri\u00edch po skupin\u00e1ch, ne jen jako individu\u00e1ln\u00ed sn\u00edmky.<\/p>\n

\"\"<\/a>
Sony RX10 Mark IV, 600mm, 1\/2000s, f\/6.3, ISO250<\/figcaption><\/figure>\n

Model RX10 IV<\/strong> tak\u00e9 disponuje vysokorychlostn\u00ed z\u00e1v\u011brkou eliminuj\u00edc\u00ed zkreslen\u00ed<\/strong> (maxim\u00e1ln\u00ed rychlost z\u00e1v\u011brky dosahuje a\u017e 1\/32000 sekundy<\/strong>), kter\u00e1 omezuje vznik \u201erolling shutter\u201d efektu, k\u00a0n\u011bmu\u017e obvykle doch\u00e1z\u00ed p\u0159i sn\u00edm\u00e1n\u00ed rychle se pohybuj\u00edc\u00edch objekt\u016f. Ve v\u0161ech re\u017eimech je tak\u00e9 schopna fungovat jako zcela tich\u00e1 z\u00e1v\u011brka<\/strong>, a to v\u010detn\u011b s\u00e9riov\u00e9ho vysokorychlostn\u00edho sn\u00edm\u00e1n\u00ed<\/strong>. K\u00a0dispozici je samoz\u0159ejm\u011b tak\u00e9 re\u017eim mechanick\u00e9 z\u00e1v\u011brky<\/strong>, pokud j\u00ed u\u017eivatel d\u00e1v\u00e1 p\u0159ednost.<\/p>\n

\"Novinka<\/a><\/p>\n

Objektiv ZEISS\u00ae<\/sup> Vario-Sonnar T* 24-600 mm F2,4-F4<\/h2>\n

Objektiv 24-600 mmiv<\/sup> ZEISS\u00ae<\/sup> Vario-Sonnar T*<\/strong> fotoapar\u00e1tu Cyber-shot RX10 IV<\/strong> nab\u00edz\u00ed na zoom \u00factyhodnou sv\u011btelnost f\/2,4-f\/4,0<\/strong>. Pom\u00e1h\u00e1 tak dos\u00e1hnout v\u00fdjime\u010dn\u00e9 kvality sn\u00edmk\u016f<\/strong> v\u00a0cel\u00e9m rozsahu ohniskov\u00fdch vzd\u00e1lenost\u00ed<\/strong>, a to i u nejdel\u0161\u00edch ohniskov\u00fdch vzd\u00e1lenost\u00ed<\/strong>. Sou\u010d\u00e1st\u00ed objektivu je tak\u00e9 \u010do\u010dka s\u00a0extr\u00e9mn\u011b n\u00edzkou disperz\u00ed sv\u011btla<\/strong> (super ED, extra-low dispersion) a asf\u00e9rick\u00fd \u010dlen s\u00a0n\u00edzkou disperz\u00ed sv\u011btla<\/strong>, kter\u00e9 minimalizuj\u00ed chromatickou aberaci<\/strong>, a povrchov\u00e1 \u00faprava ZEISS\u00ae<\/sup> T*<\/strong> omezuj\u00edc\u00ed ne\u017e\u00e1douc\u00ed odlesky<\/strong> v\u00a0objektivu (tzv. flare) a \u201eghosting\u201c.<\/p>\n

\n
\"Novinka<\/a><\/div>\n
\"Novinka<\/a><\/div>\n<\/div>\n

Objektiv je tak\u00e9 vybaven vestav\u011bnou optickou stabilizac\u00ed obrazu<\/strong> Optical SteadyShot\u2122, kter\u00e1 pom\u00e1h\u00e1 redukovat rozt\u0159esen\u00ed fotoapar\u00e1tu a rozmaz\u00e1n\u00ed sn\u00edmk\u016f<\/strong>. Efekt aktivov\u00e1n\u00ed t\u00e9to funkce je ekvivalentn\u00ed p\u0159ibli\u017en\u011b zrychlen\u00ed z\u00e1v\u011brky o 4,5 expozi\u010dn\u00edho kroku<\/strong>.<\/p>\n

\"Novinka<\/a><\/p>\n

Objektiv nav\u00edc dok\u00e1\u017ee zaost\u0159it ji\u017e od minim\u00e1ln\u00ed zaost\u0159ovac\u00ed vzd\u00e1lenost\u00ed 72 cm (2,36 stopy) a maxim\u00e1ln\u00edm zv\u011bt\u0161en\u00edm 0.49x p\u0159i maxim\u00e1ln\u00ed ohniskov\u00e9 vzd\u00e1lenosti 600 mm vykouzlit makro sn\u00edmky s\u00a0\u00fachvatn\u00fdmi detaily.<\/p>\n

Video v\u00a0profesion\u00e1ln\u00ed kvalit\u011b<\/h2>\n

Model RX10 IV<\/strong> se stal nejnov\u011bj\u0161\u00edm fotoapar\u00e1tem Cyber-shot RX, jen\u017e nab\u00edz\u00ed v\u00fdhody nahr\u00e1v\u00e1n\u00ed videa v rozli\u0161en\u00ed 4K<\/strong> (QFHD 3840 x 2160) se syst\u00e9mem Fast Hybrid AF<\/strong>, kter\u00fd m\u00e1 p\u0159ibli\u017en\u011b 2x vy\u0161\u0161\u00ed rychlost ost\u0159en\u00ed<\/strong> ve srovn\u00e1n\u00ed s RX10 III.<\/p>\n

\n
\n
\"\"<\/a>
Sony RX10 Mark IV, 600mm, 1\/125s, f\/4, ISO100<\/figcaption><\/figure>\n<\/div>\n
\n
\"\"<\/a>
Sony RX10 Mark IV, 600mm, 1\/2500s, f\/4, ISO160<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

V\u00a0re\u017eimu 4K vyu\u017e\u00edv\u00e1 nov\u00fd model RX10 IV<\/strong> technologii full pixel readout<\/strong> bez slu\u010dov\u00e1n\u00ed pixel\u016f a zaznamen\u00e1v\u00e1 p\u0159ibli\u017en\u011b 1.7x v\u00edce informac\u00ed<\/strong>, ne\u017e je pro v\u00fdstup videa ve 4K t\u0159eba. Zaji\u0161\u0165uje tak, aby byly i ty nejjemn\u011bj\u0161\u00ed detaily zachyceny p\u0159esn\u011b<\/strong>. Fotoapar\u00e1t pou\u017e\u00edv\u00e1 kodek XAVC S\u2122<\/strong> [iv] a nahr\u00e1v\u00e1 videa s\u00a0vysok\u00fdm datov\u00fdm tokem a\u017e do 100 Mbps<\/strong> (v\u00a0z\u00e1vislosti na re\u017eimu nahr\u00e1v\u00e1n\u00ed). U\u017eivatel\u00e9 mohou volit mezi nat\u00e1\u010den\u00edm ve 24fps nebo 30fps v\u00a0re\u017eimu 4K (100 Mbps), nebo sn\u00edmkovou frekvenci a\u017e 120fps v\u00a0re\u017eimu Full HD<\/strong>, co\u017e dovoluje tvorbu plynule zpomalen\u00fdch z\u00e1b\u011br\u016f<\/strong> ve vysok\u00e9m rozli\u0161en\u00ed.
\nNov\u00fd fotoapar\u00e1t nab\u00edz\u00ed tak\u00e9 mno\u017estv\u00ed dal\u0161\u00edch profesion\u00e1ln\u00edch funkc\u00ed pro nahr\u00e1v\u00e1n\u00ed videa v\u010d. obrazov\u00fdch profil\u016f S-Log3\/S-Gamut3<\/strong>, Gamma Display Assist<\/strong>, Proxy recording<\/strong>, Time Code \/ User Bit<\/strong> a dal\u0161\u00ed, stejn\u011b jako vstup pro extern\u00ed mikrofon a v\u00fdstup pro kontrolu pomoc\u00ed sluch\u00e1tek.<\/p>\n

\n
\n
\"\"<\/a>
Sony RX10 Mark IV, 600mm, 1\/2500s, f\/4, ISO320<\/figcaption><\/figure>\n<\/div>\n
\n
\"\"<\/a>
Sony RX10 Mark IV, 600mm, 1\/2000s, f\/4, ISO400<\/figcaption><\/figure>\n<\/div>\n<\/div>\n

K\u00a0dispozici je tak\u00e9 super zpomalen\u00e9 nahr\u00e1v\u00e1n\u00ed videa<\/strong> (Super slow motion<\/strong>[v]) s\u00a0prodlou\u017eenou dobou z\u00e1znamu p\u0159ibli\u017en\u011b na 4 sekundy (v re\u017eimu priority kvality) a na 7 sekund (v re\u017eimu priority \u010dasu). Tato unik\u00e1tn\u00ed funkce d\u00e1v\u00e1 u\u017eivateli mo\u017enost volit mezi sn\u00edmkov\u00fdmi frekvencemi 1000fps, 500fps a 250fps a vybrat bu\u010f 50fps, 25fps nebo 24fps form\u00e1t p\u0159ehr\u00e1v\u00e1n\u00ed[vi].<\/p>\n