Ikhamera yePentax 645Z: iinkcukacha kunye nokuhlaziywa

Iikhamera eziphakathi kweefomera ziye zafikelela kwisigqibo esinomdla ngokwenene, esiye siphumo senkcitho edibeneyo kunye nezinye izinto zokusebenza. I-Pentax 645Z yakwazi ukunikezela ngokusebenzayo kuphela kwiikhamera eziphakathi. Indlu engenawo amanzi, ukucoca, ukukhishwa kwevidiyo, ukuba ungathethi uluhlu olubanzi kakhulu lobuninzi, inkqubo ye-phase-AF yemigangatho engu-27 kunye nokusebenza okuphezulu. Kwaye, eqinisweni, unenkcukacha ebalulekileyo kunye nesibonakaliso esikhulu esikhulu. Mhlawumbi lixesha lokutsala i-frame full?

I-Pentax 645Z, iPentax 645D: ukuthelekiswa

Ekuqaleni kuka-2010, i-Pentax yakhululwa ngo-645D, ikhamera ye-digital SLR ephakathi, ephuhlisiwe kwiminyaka emihlanu edlulileyo. Mhlawumbi bekude kakhulu, kodwa ke, ixesha lichithwe ngokuziwayo. Imodeli ye-645D yagqitha i-Nikon, i-Canon kunye ne-Sony kwindawo ene-sensor ye-2/3 yesakhelo esipheleleyo esipheleleyo, ukubonakala okubonakalayo kunye nobunzulu obunzulu bendawo. Ngexesha elifanayo, ikhamera ifaneleke ngakumbi kuneempawu ezivela kwabanye abenzi befomathi ephakathi, njengeSigaba esisodwa kunye neHasselblad, ngelixa lihlala linamandla ngokwaneleyo ukuba lisetyenziswe kwintsimi.

Isizathu sokuba iPentax, ngokokuqala ngqa emva kokuthengwa kwayo nguRicoh, yakwazi ukunikela ikhamera kwintengo ekhangayo kunabanye, ilula. Ininzi yentuthuko ye-645D ingasetyenziselwa ukuveliswa kwemveliso ye-APS-C DSLR, ngelixa iSigaba esisodwa kunye neHasselblad singathengiswa ngabathengi be-SLR - iindleko zendlela yokuyila ziwela kuphela kwimikhiqizo yazo.

Nangona i-Pentax isoloko ilahlekile (kwaye ingenakho) ikhamera yedijithali ye-digital SLR, i-645D iyanqweneleka kubaxhasi kunye neyayilungele ngokwaneleyo ukutsala amacebo, isisombululo kunye nefomathi zibaluleke ngaphezu kokubamba ngesivinini esiphezulu. Kwaye ngo-2010 imigangatho, isisombululo sasinkulu kakhulu. I-645D yenza utshintshi olungaphelekanga, iliso elingenakulinganiswa.

Njengama-khamera yefilimu ephakathi, ekuhambeni kwayo, i-645D ayilungiselelwe ukuthengiswa kwemarike. I-niche yayo yemakethe ukususela ngexesha leemifanekiso zefilimu liye linciphisa ngakumbi, kodwa, nangona kunjalo, lo mzekelo wawubaluleke kakhulu kwinkampani, njenge-Pentax 645Z.

Ikhamera ifana kakhulu kunye nezibuko ze-APS-C Ricoh, kunye nokubonga kwiminyaka emine yentuthuko ukususela ekuqalweni kwe-645D, kwakungekho nqongophala yempawu ezintsha.

Umveleli kunye neprojekthi

Into ebaluleke kakhulu yinto entsha ye-brand-megapixel ye-CMOS-matrix ebambisene neprojekthi ye-PRIME III, yokuqala eyavela kwi-K-3. I-645Z ibuye izuze i-27-point autofocus ye-SAFOX 11 kunye ne-86,000-pixel yomlinganiselo wendlela yokubala.

Inzwa entsha ye-Pentax 645Z inobanzi obubanzi kakhulu (ngobukhulu bekhamera ububanzi), ufikelela kwi-ISO 204,800. Ukucoca kunye nokudubula iividiyo ezipheleleyo zeHD ziye zalahleka kubakho ngaphambili. Ukusebenza kuye kwathatha inyathelo eliphambili, ubuncinane lifaniswe namanye amakhamera esayizi-middle. Oku akusekho ikhamera yezemidlalo, kodwa isantya sayo sinokukhawuleza kathathu ngaphezu kwe-645D. Kwaye ixesha lokuthunyelwa kwithuba emva kwexesha liye linciphisa ngaphezu kwesigamu.

Ukulungiswa kweLen

Njengaye ngaphambili, i-Pentax 645Z yokulungiswa kwemisebenzi yeLenses ilungisa ukuphazamiseka kunye necandelo lokuhlutha kwe-chromatic. Ukongezelela, uye wakwazi ukulungisa ukukhanya kwipheripha kunye neyantlukwano. Umsebenzi usebenza neelens DA645, D FA645 kunye ne FA645, kodwa kungekhona nge-A645 okanye i-lens ezingama-67.

Izinto ezintsha

Ikhamera ibonisa iphaneli yeLCD ekhudlwana, ekhunjulwayo kunye nesisombululo esiphezulu, yonke into ebalulekileyo, enikwe ukufumaneka komsebenzi omtsha wokubukela isikrini. Ubomi be-shutter buphindwe kabili ukuya kuma-100,000. Ngako oko, iifoto ezithathwe yiPentax 645Z zithengwa ngaphezu kwezo zandulela.

Umvelisi uxhobisa ikhamera yakhe, njenge-K-3, enechwephethi ephezulu ye-USB 3.0 kunye ne-UHS-I-ehambisanayo yokugcina imemori khadi yememori kunye ne-Pentax Flucard yamakhadi avumela i-remote control management, kubandakanywa kwi-screen-viewing. Kukho ithuba lokudubula i-4K-video, nangona kunjalo, ngaphandle kwesandi. Kodwa iVideo epheleleyo yeHD ihambelana nesandi se stereo esibhalwe nge-microphone ebhodini okanye yangaphandle, ngokulungelelanisa okanye ngokulungelelanisa.

Ngaphandle, ikhamera ibonakala i-squat, ngakumbi ubunzulu bayo. Kunokwenzeka ukuba ikhamera iya kutsala ingqalelo xa kuthungulwa, ngoko akufanelekile abo bafuna ukuhlala bengaboni. Kodwa imihlaba yokudubula, uhlobo, izinto ziya kudala imifanekiso emangalisayo kakhulu. Yaye nangona ubukhulu bekhamera bugqithise ubukhulu bomlinganiselo weekhamera ze-DSLR zobuchwepheshe, ubunzima bayo buhambelana nezixhobo ezinentsimbi encinci, njenge-Canon EOS 1D X. Ngokomgangatho osemgangathweni, umzekelo uhambelana nokukhanya.

Jonga ngembono yangaphambili

Ukujonga phambili, i-Pentax 645Z iyafana kakhulu neyaphambili. Uhlobo oluphawulekayo luphawu lwebheji yesiliva entsha kwisibhengezo sokubukela, okwakumnyama. Kodwa ukuba ukhangela phantsi kwegobolondo yangaphandle, loo nto iya kuhluke ngokupheleleyo. Ubunzulu bunyuke ngo-4 mm kunye nobunzima bu-71 g. Ikhamera ayiyinto encinci, kodwa ayinkulu kakhulu, njengokuba umntu unokucinga ukuba, ekhangele isithombe.

Ukuphakama nobubanzi be-Pentax 645Z buhluke kancinci ukusuka kwisiqalo esipheleleyo se-D800 Canon EOS 5D Mark III okanye iikhamera ze-Nikon. Isixhobo sincinci kwaye sifutshane kuneenkhamera zeCanon EOS 1D X okanye i- Nikon D4S, ngokuyininzi ngenxa yokungabikho kwendlela yokuphatha imifanekiso.

645Z ilahlekelwa ngokuthelekisa ubunzulu nobukhulu. Isixhobo esisezingeni eliphakathi, okufunekayo nakweminye imimandla, kufuna umodyuli omkhulu ukuhlala kwisibuko. Lo bunzulu obongezelelweyo ngu-25-35 mm. Ubunzima buba malunga nekota ngaphezu kweD4S, kwaye ngu-1.55 kg kwiimeko ezidibeneyo.

Kodwa le yintlawulo encinci ye-2/3 eyongeziweyo, xa kuthelekiswa nesi-sensor esigcwele i-35 mm. Ngecala elincinci, kukho indawo eyaneleyo yokulawula kwangaphandle ejoliswe ekusebenziseni kwiiglavu. Ukuqulunqwa kwamaqabunga kwezindlu kungabinqanda ukudubula phantsi kweemeko ezimbi. Ukongezelela, ngenxa yemibonakaliso engama-76, ukuyila imimoya kunye nokungafi.

Imibuzo malunga nokusebenza kobugcisa kwimeko ayifuni. Yenziwe nge-aluminium eplastiki, igobolondo yangaphandle yenziwe nge-magnesium alloy, ngaphandle kwe-polycarbonate.

Umbono ophezulu

Ukujonga phezulu ungakufumana ukungafani phakathi kwePentax 645Z kunye no-645D. Iindlela zokuqala ezintathu zendlela yomsebenzisi zivele kwi disk yokulawula, ukuququzelela ukufikelela kumaqela esetyenziswe ngaphambili. Umgca weeqhosha kwicala lasekhohlo uye wahlulwa kwakhona. I-SD ithathe indawo ye-AF ibe yindawo yecala kunye nokukhutshwa, kwaye umyalelo wokuqhubela phambili ubhonkco washintshwa. Kwakhona kukho imakrofoni entsha ye-stereo, imingxuma emibili ekhoyo kumacala ombukeli, kunye nesithethi-esingaphaya kwelinye icala kwicala.

Buyela

Utshintsho kwiplanethi yangemuva ye-645Z linxulumene ne-LCD entsha. Umboniso waba mkhulu ngo-3.2 intshi e-diagonally kwaye ufumene indlela yokutshintsha ukujonga ngaphaya kwentloko, kwinqanaba elisezantsi okanye phantsi.

Inani leeqhosha, ezadlulileyo ngaphantsi komboniso, zanyamalala, kwaye imisebenzi yazo e-4 iya kwiifayile zokuhamba. Ziye zisetyenziselwa ukulungelelanisa indawo ye-AF, njengePentax K-3.

Ikholamu yeeqhosha ngasekunene kwe-LCD yaba yiklasi egciniweyo ngasemva kwekhamera. Omnye wabo, iqhosha lokuCima, ufumene umsebenzi wokurekhoda ividiyo. Kwaye ekubeni ukhetho lwe-AF lusekho nakwezinye indawo, ukuqhubela ngakwesokudla kwisibhengezo, esasetyenziswa ngaphambili, ngoku isebenza njengeDiski yokuLawula / i-Movie.

Iipaneli ezisecaleni

Icala lasekhohlo lecala 645Z lalahleka umkhiqizo wevidiyo, endaweni apho kwakukho umxube omtsha we-microphone we-3.5 mm we-microphone. Amachweba asele atholakala ngaphantsi kwe-stopper eyodwa. Umxhasi we-USB sele ube yi-USB 3.0 SuperSpeed, kwaye indawo yeechwep zitshintshile. Kukho kwakhona i-Secure Digital Card slots apha, enye yayo iyahambelana ne-UHS-I.

Isiphephelo esibucayi DC, esasiye ngaphantsi kwekhava kwiplanethi yangemuva, ngoku ikhona kwisibambiso. Le nyathelo elinengqiqo, enikwe ukungabi nendawo kwenye indawo. Ukuba udubula usebenzisa ulawulo olukude, akudingeki ubambe ikhamera.

Quality Image

KwiPentax 645Z, iifoto zibalaseleyo, zineenkcukacha ezithandekayo, ngokukodwa ngokubaluleka kwiseko. Uluhlu olubanzi lwale ndlela yokugqibela luyakulungeleka, kukuvumela ukuba wenze i-ISX 6400 kunye no-4 x 6 uguqulele kwi-ISO 6400 kunye no-4 x 6 "ukuprinta ukuya ku-ISO 51 200. Njengokuba kunjalo njalo ngeekhamera ze-Pentax, ukuguqulelwa kombala ngokungekho mthethweni ngezinye iinkcukacha kulungile, kodwa akunakwenzeka Ngoko ukuba umsebenzisi wekhamera yezobugcisa ushiya izicwangciso zefowuni.

I-Pentax 645Z: iifoto zabahlalutyi

Abasebenzisi bayakuxabisa isisombululo esikhulu kunye nokuchazwa kwekhamera, ukubonakalisa iifoto eziphezulu, ubukho beimeko ezinqabileyo ezinamanzi kunye nesiboniso esikhulu esicacileyo. Abafaki baqaphele ukusebenza kakuhle nokukhawuleza kwe-autofocus kwiimeko eziphantsi zokukhanya, ukusebenza kweefowuni, ubomi bhetri bude kunye nokukwazi ukubamba ividiyo epheleleyo ye-HD.

Izikhalazo zibangela uyilo olunzima olufaniswa ne-APS-C okanye iikhamera zedijithali zedijithali ezipheleleyo, ukutyekela kwezithuba ezingamaphepha, ukugxininiswa kweengongoma ze-AF kufuphi nepotri yesakhelo, kunye nokubonelela ngokwaneleyo kobuninzi bokungena kwamanzi kunye neelensi ezicwangcisiweyo. Kwaye kukhangeleka okungaqhelekanga kubangalisa abadlulileyo.

Ikhamera engenalo i-lens ifumaneka ngoJuni 2014 ngentengo yama-ruble ayi-625-646 ayiwaka.

Ubungakanani kunye nexabiso lePentax 645Z lubonisa ukuba le khamera ayinayo yonke into - abaninzi banelisekile ngekhamera encinane ye-APS-C okanye ikhamera epheleleyo. Abo baphinda baprinte iifoto zobukhulu becala kwaye badinga ingcaciso ephezulu kufuneka bayeke ngo-645Z - ikhamera ephakathi neyommangaliso ephezulu kunye nokufumaneka kwayo.