Lub koob yees duab Pentax 645Z: nta thiab xyuas

Medium hom koob yees duab tau mus txog lawm tiag tiag spectacular kev daws teeb meem, uas yog lub txiaj ntsim ntawm ib tug complex dabtsi nrog lwm nta. Pentax 645Z yuav muaj functionality uas yog nws rau nruab nrab hom koob yees duab. Waterproof plhaub, pom screen, video capture, tsis hais ib tug tsis tshua ntau rhiab heev ntau yam, 27-point AF system, theem thiab kev kawm ntawv siab. Thiab, ntawm chav kawm, nws muaj zoo kawg kev nthuav dav thiab ib tug heev loj, kaj viewfinder. Tej zaum nws yog lub sij hawm mus hais goodbye nrog ib tug tag nrho cov ncej?

Pentax 645Z, Pentax 645D: ib tug sib piv

Nyob rau hauv thaum ntxov 2010, rau lub tuam txhab tso lub Pentax 645D, ib cov SLR yees nruab nrab hom ntawv, tsim dua yav dhau los tsib lub xyoos. Tej zaum nws yog dhau lawm ntev, tab sis, cuaj kaum, nws twb lub sij hawm zoo siv. Model Nikon 645D surpassed competitors, Canon thiab Sony lub sensor cheeb tsam los ntawm 2/3 xav paub ntau tshaj ncej, ib tug tshwj xeeb tsos thiab tsawg tob ntawm daim teb. Nyob rau tib lub sij hawm, lub koob yees duab tau ua ntau ntau pheej yig counterparts los ntawm lwm manufacturers ntawm medium hom, xws li lub Hasselblad thiab Theem Ib, thaum uas seem muaj zog txaus hais tias nws yuav siv tau nyob rau hauv lub teb.

Yog vim li cas hais tias cov Pentax, thawj thawj zaug tom qab yuav cov Ricoh, yuav muaj cov koob yees duab ntawm ib tug txaus nyiam nqi tshaj li lwm yam, yog yooj yim heev. Feem ntau ntawm cov uas 645D yuav siv tau nyob rau hauv loj zus tau tej cov APS-C DSLRs, thaum Theem ib tug thiab Hasselblad neeg SLR koob yees duab ua tsis tau luam - lub tsim nqi mov heev dua lwm yam rau lawv cov khoom ntawm medium hom.

Thaum Pentax yeej ib txwm Corporate (thiab tseem lacks) ib tug ncej tas cov SLR koob yees duab, 645D yog xav rau enthusiasts thiab thawj txaus nyiam cov tub txawg, rau cov uas qhov kev daws teeb meem thiab hom tseem ceeb dua lub capture ntawm ib tug kub ceev. Thiab los ntawm 2010 qauv, cov kev daws teeb meem yog zoo kawg thiab tiag. 645D ntaus unprecedented nthuav dav ua ntej, indistinguishable qhov muag.

Ib yam li cov zaj duab xis nruab nrab hom koob yees duab, cov footsteps hais tias nws yog, 645D tsis yog rau lub loj ua lag luam. Nws ua lag luam me me txij li thaum lub zaj duab xis poob lawm tau poob ntau heev tshaj dua, tab sis, cuaj kaum, cov qauv no lawm tseem ceeb heev rau lub tuam txhab, raws li zoo raws li nws cov successor Pentax 645Z.

Lub koob yees duab muaj ib tug ntau nyob rau hauv ntau nrog cov flagship APS-C DSLRs lub Ricoh, thiab ua tsaug rau 4 xyoo kev loj hlob txij thaum lub pav tua ya ntawm 645D, muaj tsis muaj tsis txaus cov tshiab nta.

Sensor thiab processor

Qhov tseem ceeb tshaj feature yog lub hom tshiab 51-megapixel CMOS-matrix paired nrog rau cov duab processor Prime III, xub tshwm sim nyob rau hauv lub K-3. 645Z kuj inherits nws 27-point autofocus SAFOX 11 thiab 86 000-pixel xim ntsuas system.

Tus tshiab Pentax 645Z duab sensor muaj ib tug tsis tshua ntau (los ntawm cov qauv ntawm medium hom koob yees duab) rhiab heev ntau yam, xeeb ISO 204.800. OSD pom thiab tua tag nrho HD-video yog tseem tsis tuaj kawm ntawv los ntawm lawv cov predecessors. Productivity tau noj ib kauj ruam loj loj rau pem hauv ntej, yam tsawg kawg nyob rau hauv kev sib piv nrog rau lwm cov medium-hom koob yees duab. Yog tias tsis yog ib tug kev ua si lub koob yees duab, tab sis nws ceev yog yuav luag 3 lub sij hawm cov kev ceev ntawm 645D. Ib tug post-sij hawm ua tau poob los ntawm ntau tshaj ib nrab.

lens kho

Ib yam li cov precursor, cov nuj nqi Pentax 645Z Lo Ntsiab Muag kho tso cai rau kom kho distortion thiab sab chromatic aberration. Nyob rau hauv tas li ntawd, nws tseem tau mus kho qhov peripheral illumination thiab diffraction. Qhov no muaj nuj nqi ua hauj lwm nrog lo ntsiab muag DA645, D FA645 thiab FA645, tab sis tsis nrog lub A645 lossis yoog 67 lo ntsiab muag.

tshiab nta

Lub koob yees duab boasts ib tug loj, tilting LCD vaj huam sib luag nrog ib tug ntau dua kev daws teeb meem, qhov ntau pab tau, muab cov nyob rau ntawm ib tug tshiab feature on-screen saib. Term shutter kev pab tau ob npaug rau 100,000 txhaj tshuaj. Yog li ntawd duab coj Pentax 645Z, yog tsis tshua kim tshaj thawj ntawm cov dluab.

Chaw tsim tshuaj paus nruab nws lub koob yees duab, zoo li K-3 high-ceev USB 3.0 chaw nres nkoj thiab ib tug UHS-kuv-tau tshaj qhov kev ruaj ntseg Digital nco daim npav qhov rau daim ntawv qhia Pentax Flucard, pub rau cov tej thaj chaw deb wireless tswj, nrog rau on-screen pom. Nws muaj lub peev xwm mus tua 4K-video, tab sis tsis muaj suab. Tab sis lub Full HD-video yog nrog los ntawm lub tso suab lub suab kaw rau-board microphone los yog sab nraud, nrog tsis siv neeg los yog phau ntawv haum.

Externally, cov koob yees duab yog zoo heev stocky, tshwj xeeb tshaj yog zoo tob. Nws yog heev tej zaum yuav hais tias cov koob yees duab yuav ntes cov xim thaum shooting, li ntawd nws yog tsis haum rau cov neeg uas xav nyob twj ywm undetected. Tab sis shooting ua hauj lwm, xwm, tej khoom tso cai rau koj los mus tsim kiag li amazing kev txhaj tshuaj. Txawm tias cov koob yees duab yog loj tshaj cov raug loj ntawm ib tug kev DSLR-lub koob yees duab, tus luj ntawm lub ntaus ntawv raws li ib tug me me sensor, xws li cov Canon EOS 1D X. Los ntawm cov qauv ntawm medium-hom qauv yog tus compact thiab yooj yim.

Saib daim ntawv qhia lub ntsej muag

Thaum saib ntawm lub hauv pem hauv ntej, Pentax 645Z koob yees duab yog zoo heev rau nws cov thawj ntawm. Qhov tseem hnov qhov sib txawv yog ib hom tshuaj tshiab nyiaj ntawv uas qhia tias nyob rau hauv cov viewfinder plaub, uas yog dub. Tab sis, yog hais tias koj saib hauv qab lub plhaub, lub plhaub yuav tsum sib txawv kiag li. Lub qhov tob muaj ntau zog los 4 mm, thiab poob - nyob rau hauv lub '71 Lub koob yees duab yog tsis me, tab sis tsis dhau heev lawm, raws li tej zaum koj yuav xav hais tias, tab tom nrhiav nyob rau ntawm lub lub yees duab.

Lub qhov siab thiab dav Pentax 645Z yog tsis ntau sib txawv ntawm cov raug ncej tas lub koob yees duab D800 Canon EOS 5 D Mark III los yog Nikon. Tus ntaus ntawv yog ib tug me ntsis nqaim thiab luv dua cov kev koob yees duab Canon EOS 1D X los yog Nikon D4S, lom zem ntau vim tsis muaj portraiture kov.

645Z loses tiv tiag qhov tob thiab qhov hnyav. Lub sensor nruab nrab hom ntawv, thiaj li tsim nyog nyob rau hauv lwm qhov chaw, yuav tsum tau ntau npaum li cas modules kom haum raws li daim iav. Qhov no ntxiv qhov tob ntawm 25-35 hli. Nyhav hais txog ib tug peb lub hlis twg ntau tshaj qhov D4S, thiab 1,55 kg nyob rau hauv lub dho lub xeev.

Tab sis qhov no yog me me nqi them kom muaj zog los ntawm 2/3 piv rau lub 35 hli tag nrho ncej sensor. Qhov zoo sab yog hais tias muaj yog txaus qhov chaw rau lwm ntawm lwm yam uas, qhia tshwj xeeb uas tsim los siv nrog cov hnab looj tes. Te-cov pov thawj tsev nyob tsim kuj tiv thaiv shooting nyob rau hauv huab mob. Nyob rau hauv tas li ntawd, ua tsaug rau lub 76 cov ntsaws ruaj ruaj, tus qauv yog resistant rau weathering thiab hmoov av.

Yog muaj lus nug txog cov kev kawm ntawv ntawm lub cev tsis tshwm sim. Nws yog tsim los ntawm cam khwb cia txhuas, lub plhaub - ib tug magnesium alloy, uas tsis muaj hint ntawm polycarbonate.

sab saum toj saib

Pom los ntawm saum toj no, koj yuav nrhiav tau ib tug ob peb sib txawv ntawm cov Pentax 645Z thiab 645D. Nyob rau hauv cov kev tswj log nyob 3 tshiab kev cai hom uas pab txhawb kev nkag mus rau lub pre-tsim pab pawg neeg ntawm qhov chaw. Tus kab nyob rau sab laug ntawm cov nyees khawm tau kuj tau redesigned. SD hloov los ntawm lub AF thiab thaiv cov hlab, raws li zoo raws li qhov kev txiav txim tau raug hloov mus rau pem hauv ntej txav bracket. Muaj kuj yog ib tug tshiab lub tso suab, ob qhov uas muaj nyob rau ntawm ob sab ntawm lub viewfinder, thiab ib tug hais lus - ib tug me ntsis ntxiv nyob rau sab xis.

hindquarters

Cov kev hloov ntawm lub tsheb ntawm tus 645Z yog kev cob cog rua nrog lub tshiab LCD saib. Cov zaub muaj ntau zog los 3.2 nti diagonally thiab tau nrhiav cov tilting mechanism rau saib tshaj lub taub hau, thaum lub duav rov sauv theem los yog tsawg mus rau hauv av.

Number cov nyees khawm, uas siv los muaj nyob rau hauv cov zaub tau zoo, thiab lawv cov functions pauv mus rau lub 4 navigation nyees khawm. Lawv kuj siv los kho txoj hauj lwm ntawm lub AF point, raws li nyob rau hauv lub Pentax K-3.

Kem nyees khawm rau ntawm sab xis ntawm lub LCD tau los ua ib tug square pawg nyob rau hauv txoj cai rear ntawm lub koob yees duab. Ib tug ntawm lawv, Rho tawm khawm, kuv pom ib tug yees duab cov ntaubntawv povthawj siv muaj nuj nqi. Thiab txij li thaum lub xaiv AF point yog tam sim no nyob rau lwm qhov chaw, tus tsav mus rau sab xis ntawm lub viewfinder, uas yog siv yav tas los rau lub hom phiaj no, tam sim no ua hauj lwm pab Tseem / Movie disk tswj.

sab panels

645Z sab laug sab ntawm lub cev tau poob ib puas video tso zis, es tsis txhob ntawm uas muaj ib tug tshiab 3.5-hli nkaus rau txuas lub tso suab. Qhov seem ports nyob rau hauv ib tug roj hmab plug. Cov USB connector yog tam sim no USB 3.0 SuperSpeed, thiab hloov ntawm qhov chaw ntawm lub ports. Tsis tas li ntawd ntawm no yog ob Luag Digital Card qhov, yog ib tus uas yog sib xws nrog UHS-kuv.

Wired DC davhlau ya nyob twg, yav tas los nyob rau hauv lub hau ntawm lub rear, yog tam sim no nyob rau hauv tus kov. Qhov no yog ib zajlus kom kauj ruam, muab cov tsis muaj qhov chaw rau lwm qhov chaw. Yog hais tias koj tua siv tej thaj chaw deb tswj, lub koob yees duab tsis yuav tau khaws.

duab zoo

Pentax 645Z ntawm tus yees duab puv txig, nrog kiag li breathtaking nthuav dav, tshwj xeeb tshaj yog nyob puag rhiab heev. Ib tug dav ntau yam ntawm lub yav tas yog heev yooj yim, lub hom phiaj rau koj mus ua 11 x 14-nti prints mus ISO 6400, thiab 4 x 6 "-otpechatki mus ISO 51 200. Raws li yog feem ntau yog cov ntaub ntawv nrog cov koob yees duab Pentax, xim tu tub tu kiv siv lub neej ntawd chaw no tej zaum kuj tsis muaj tseeb, tab sis yeej tsis zoo li neeg siv yuav kev koob yees duab rau sab laug ntawm lub Hoobkas chaw.

Pentax 645Z: Xyuas cov duab

Cov neeg siv zoo ntsuam xyuas cov loj loj daws teeb meem thiab kev nthuav dav ntawm lub koob yees duab, nws cov high rhiab heev, lub xub ntiag ntawm ib tug muaj zog dej-pov thawj cov ntaub ntawv thiab ib tug loj, kaj viewfinder. Kev pab txog hais tias zoo thiab ceev ceev autofocus nyob rau hauv tsawg lub teeb tej yam kev mob, ntaus ntawv kev ua tau zoo, zoo kawg roj teeb lub neej thiab muaj peev xwm mus tua Full HD-video.

Kev tsis txaus siab ua bulkiness ntawm cov qauv raws li muab piv rau tus APS-C los yog tag nrho cov ncej cov SLR koob yees duab, nyhav rau tsis xws luag ntawm daim duab, cov AF concentration ntawm cov ntsiab lus nyob ze ntawm lub chaw rau ntawm tus ncej thiab ib tug tsis txaus mov ntawm haum kua-kaw ntom nti thiab optimized rau cov tswj lo ntsiab muag. Thiab qhov txawv tsos kos cov xim ntawm passersby.

Lub koob yees duab tsis muaj ib tug lens yog muaj nyob rau ntawm Lub rau hli ntuj 2014 nyob rau nqi ntawm 625-646 txhiab rubles.

Qhov luaj li cas thiab tus nqi ntawm Pentax 645Z hais tias lub koob yees duab no tsis yog rau txhua leej txhua tus - ntau txaus siab nyob rau ntawm lub APS-C-matrix, los yog ncej tas lub koob yees duab - tab sis nws insatiable nqhis dej rau kom meej tso cai rau nws mus rau sawv tawm. Cov neeg uas tsis tu ncua sau cov duab loj heev thiab yuav tsum tau ib tug tshaj plaws ntawm nthuav dav yuav tsum nyob twj ywm ntawm 645Z - nruab nrab hom koob yees duab, rau nws zoo thiab cuag.