DSLR Canon 7D: ncomo, iinkcukacha, imiyalelo

SLR camera Canon video 7D, owayebonakele ngoSeptemba 2009, akazange abe umfuziselo ngokupheleleyo-isakhelo, nto leyo igcwalise umsantsa phakathi 5D Mark II kunye 1D Mark III, njengoko kusenokubonakala ukusuka ukukhululwa cofa umenzi kwaye megapixel-18 APS-uC ikhamera. Noko ke, abasebenzisi abaninzi kulindeleke imisebenzi ziphunyeziwe kuwo - a flash engenazingcingo, ingongoma-19 AF, entsha Ulinganiso System iFCL, esebenzisa ulwazi umgama, umbala kunye nokuqaqamba kwesi sifundo. Iimpawu eziphambili Canon eos 7D:

• Released isivamvo umfanekiso 18 MN;
• Screen Ukubona 3 "uboniso 920,000-dot;
• Ukurekhoda Full HD-sevidiyo 30 f / s;
• ulawulo flash wireless.

Canon 7D: Inkcazo imodeli

Oku single-Ilens reflex kwicamera yesuntswana iphezulu selayini Canon APS-C-imifuziselo, ngaphambili ahlala eos 50D. Nangona ngesisombululo 18 nefilimu yayintle, oko ilumkisa ngelithi le imilinganiso iCMOs-isivamvo ilingana 22.3 × 14.9 mm inokuba asanelanga, apho imifanekiso ithanda ukuba nobugoci umsindo kakhulu. Olu daba landela video 50D, kodwa umenzi ifumene isisombululo kule woluvo entsha. Canon kuye kwanciphisa indawo busebenze kulo ukunyusa ubungakanani photodiode nokubonelela uvakalelo oluphezulu kunye noluhlu eliguqukayo.

Ukongeza, umenzi wasebenzisa uyilo olutsha iiseli solar, leyo kuvunyelwa ukuba akuguquki i kagesi ngakumbi ukukhanya kunye nokwanda uphawu / ingxolo ratio. Njengoko i-video 50D, isivamvo 7D features nasikhewu le microlens, kodwa umgama phakathi kwabo yikristale lancipha ukuya yokugqibela bawa ziluhlaza ngaphezulu.

Nangona inani elikhulu lee-pixels ngu iziqhubekisi ezimbini Digic 4 kunye nomzila ezisibhozo readout, umvelisi akwazi ukufikelela ezona ukudubula isantya esilingana-8 / umzuzwana. Yaye akukho mfuneko yokuba i pack ibhetri eyongezelelweyo Canon 7D. Kuyaphawuleka ukuba ukusebenza ikhamera 1 ukuya / ukusuka isantya ngokukhawuleza kangangoko unako ukufikelela Nikon D300.

Kubalulekile ukuphawula ukuba ngokutsha okokuqala kwi Canon 7D imifuziselo eos zafikelela 100% ye sikrini oluphindwe-1 (nge-50mm lensi kwiZiko yokungapheli). Ngoko ke, umbono yokuqala yesakhelo ijongeka ngokufanayo kakhulu kumfanekiso wokugqibela.

Viewfinder ugcwalisa yombhalo wangoku okhethiweyo nge-screen ukubukela. Kwanaxa ebonisa igridi kunzima kakhulu ukufumana kolundi ngqo (ingakumbi xa usebenzisa lens olubanzi-engile, nto leyo idala e ifatyi ubugqwetha), ngoko ke wazihlaziya wazakha-in kumanqanaba elektroniki baye besiba baninzi ngakumbi. Canon 7D ke DSLR-camera umenzi lokuqala umsebenzi onjalo. Inqanaba electronic ingabonakaliswa zombini kwi LCD screen okanye angeli. Xa ebiza umsebenzi umsebenzisi usebenzisa IV entsha video-gumbi ethambileyo ezingundoqo ezikufutshane shutter iqhosha, AF kwelinqaku abonise ukuba ngaba ikhamera kwindawo othe tye okanye hayi. Ngelishwa, inqanaba uyanyamalala angeli xa uqala ukurekhoda okanye ukuvula le nkqubo ujolise, ngoko xa ushicilelo ncwadana akunakusetyenziswa "live".

Le khamera kwaye ludityaniswe kuqala kunye samaza Speedlite, nto leyo ukulawula namaqela 3 ukubaneka EX-series. Xa usebenza njengomsebénzi flash camera uya pre-ukhanyiso, kwanokuba oko akufuneki ngexesha sesichengeni.

Xa iinkcukacha sezingeni eliphezulu coverage basebenzisa enikiweyo 1,6x ukukhulisa ubude ngokudibene ne ngesantya umxhelo okuqhubekayo ukudubula, inkqubo entsha AF kunye uluhlu olubanzi lwemisebenzi, Canon eos 7D yi ibenomtsalane kakhulu mali okanye ezemidlalo photohunting iifoto, leyo ngokuqhelekileyo kufuna APS-H okanye ikhamera ngokupheleleyo-isakhelo.

design

Ngokwemiqathango ubungakanani kunye nobunzima, ncomo Canon 7D kuyo umbhali phakathi 50D kwaye isakhelo ngokupheleleyo 5D Mark II. Njengabo, umfuziselo lowo wenziwe magnesium ingxubevange kwaye ikhuselwe nxamnye umthondo amanzi. Canon ithi ukuba uxhathiso amanzi bekhamera esabela ngayo kudidi efanayo naleyo eyiyo kwinqanaba camera ama-1n.

Nangona ubunzima umzimba ilingana 820 g, ukwenza imodeli kakhulu enzima, imilo kunye werabha egubungele isiphatho sibonelela ukusebenza kakuhle nekhuselekileyo. Nangona emva ngokudubula umdlalo webhola nangoku uqala ukuva ubunzima, nangona kokusetyenziswa elincinane ngokwentelekiso nezitho for Canon 7D Lens EF 70-300 mm f ngesandla / 4.5-5.6 DO IS USM.

ulawulo video 7D efana 5D Mark II ngaphezu 50D, kodwa kukho ezinye umahluko omkhulu. Umzekelo, Live View button ukuya ekhohlo esingasemva 5D Mark II kwikhusi ishenxiselwe ekunene ukusuka 7D viewfinder kwaye ngoku engqongwe uneswitshi, nelicaciswa on-screen iindlela ukubukela kunye nevidiyo. Yinto linyathelo smart, kuba ngoku ulawulo ngaphakathi ingafumaneki nasesithupheni sesandla sakhe sasekunene.

Isithuba nguwonke View Live, kuhlala zezinye amaqhosha amabini. Enye ephawulwe njengoko Q, sisetyenziselwa unikezelo olukhawulezayo kulawulo screen. Enye ukutshintsha ngumqolo kunye JPEG format recording e RAW + JPEG, waza wadubula ikhamera ubuyela kwimo yakuqala. Oku kunokuba luncedo xa lokudubula JPEG iifayile-for esiphezulu series wambi efunekayo ifayile ekrwada ukuba bhetyebhetye eyongezelweleyo processing yesakhelo.

Usebenziso olulula

Kwi Quick Control screen uboniswa kakhulu ngokuqhelekileyo hlengiswa parameters-16, xa t. Ch. Auto izibane seglosi. Zingakotshwa ekhethiweyo usebenzisa intonga analog, kunye nayiphi na idiskhi. Umboniso luncedo ukuba itsheki ekhawulezayo izicwangciso kunye notshintsho zokusebenza, kodwa ukubeka esikalini emhlophe, Imo AF, njalo njalo. N. Abasebenzisi kodwa bakhetha ukusebenzisa yolawulo phezulu.

Njengazo zonke iikhamera DSLR Canon, eos 7D menu yahlulwe izikrini, nganye kuzo obekwe kwi lenjongo LCD, eyenza kube lula ukucinga imisebenzi. Ilawula ividiyo, umzekelo, ukuba ibekwe kwiphepha elahlukileyo ikuvumela ukuba ngokukhawuleza ukuseta ikhamera yevidiyo lokurekhoda.

Kongezwe yevidiyo ubugcisa kunye ezongezelelweyo iinketho ikhusi le flash izicwangciso umsebenzisi Canon 7D akazange ngokwaneleyo imisebenzi 6. Elokugqiba, akukho nto sokukhalaza malunga.

izilungiselelo umfanekiso

Inkqubo Ibhalansi emhlophe, Canon video 7D, ngokutsho ncomo umsebenzisi, akukho nto iye yatshintsha. Inikeza umsebenzi phezulu kuluhlu olubanzi iimeko zokukhanya. Umfanekiso abalindelekanga phantsi ukulungisa ngokugqithiseleyo, yaye xa zokudubula ulwazi luyafumaneka malunga umbala ukukhanya.

Njengesiqhelo, i-video 7D unesethi izimbo pre-ifakiwe imifanekiso (standard, ifoto, landscape, zendalo, oluchanekileyo kunye ezinombala ofanayo) kunye 3 umsebenzisi. Uyakwazi ukulawula kabukhali, ukuchasanisa, Ukwanda kunye nombala umbala kunye isakhelo ezinombala ofanayo. imo Standard kubonakala kancinane oversaturated, ngoko abasebenzisi bakhetha ukusebenzisa iinketho zendalo okanye ngqo.

wekhadi

Camera Canon 7D lixhotyiswe umbala ukukhanya (iFCL) kunye wekhadi 63-zone. Ukuze ubone ukuba sesichengeni efanelekileyo, isebenzisa ulwazi malunga umgama ukuya into ukusuka kwinkqubo AF, kunye nolwazi malunga umbala nokukhanya. Kunokuba woluvo mnye eos 7D ezibini kubo: ukuphulaphulayo ukuba amacandelo ebomvu kwaye eluhlaza, kunye nezinye - phezu eluhlaza, nemisonto emsi. Ngenxa yoko, inkqubo wekhadi le kangako ukukhanya okubomvu.

Njengoba ulwazi kusetyenziswa ukuxhomekeka, indawo AF Ingongoma kubaluleke kakhulu. Umzekelo, ukuba kubekwe phezu kwengca, isehlo eso yabamba kakuhle, kunye nesibhakabhaka lisibekele iba overexposed. Ukuba sinikel 'ingqalelo amafu, ukuba enenkcukacha, kwaye umhlaba kuvela underexposed. Nangona wekhadi yokuhlola abe ngumntu obonakalise olusebenzayo kwezinye iimeko, njengoko kwiinkqubo ezininzi ezifanayo, kodwa ayikwazi ukumelana kwiimeko lisibekele.

Canon 7D: ukuxhomekeka yomsebenzisi

Le khamera ndafumana inkqubo entsha AF ngongoma-19. Zonke izinto ayo cross-uhlobo lens, yaye zisebenza kunye wenyoka ubuninzi f / 5.6 okanye ngaphezulu. Yokuchaneka ezongezelelweyo yesibini, usuke X-ezimile emnqamlezweni kunye f / 2.8 kunye nendawo central ngakumbi. Ngaphezu koko, kukho kwatshintsha ngemigca 2 tyaba phakathi amanqaku aphezulu, aphantsi kunye central. Njengesiqhelo, Imo ekhoyo AF 3: inyathelo (kuba izinto zokubhala), AI Servo (zemfuduka) kunye AI zoJoliso, leyo sokuyivula ngokuzenzekelayo phakathi ezilahlwayo kwaye ixesha xa into iqala okanye eyeka intshukumo.

3 ezikhoyo AF indlela yokhetho: olunye, ummandla, kunye oluzenzekelayo ngongoma-19. I ukhetho lokuqala unika isigqibo elifanelekileyo lokuba ifoto, kwaye yokugqibela olawula ngokupheleleyo lwecamera.

Le ndlela yesibini 19 ihlukane zayimimandla 5 zokuva, kwaye umfoti ukhetha neqela elifunekayo. Oku kusetyenziswa xa uhambisa izinto xa matshini kunzima ukugcina umkhondo ingongoma enye, kwaye igxininisa kwento elikufutshane. Xa kunzima ingqalelo inxalenye ethile yalo ndawo - umzekelo, intloko umdlali othile umdlalo webhola ekhatywayo.

Auto khetha uhlengahlengiso point-19 Canon 7D kwakhona ukuba izinto ukuhamba elingafani, ikhamera ithande ukuba sijonge amandla ekujoliswe elikufutshane. Kwi-AI Servo umfoti Ungacwangcisa AF isiqalo point kunye ikhamera tracks kuyo. Kwezi iindlela, izinto eqhubayo siyagxininiswa xa AF Custom Umsebenzi III-10, ngoko ke kulula kakhulu ukubona ukuba okanye hayi into eyiyo yemizila ikhamera.

Ukusebenzisa umsebenzi ngokwesiko III-6 kuluhlu engagqibekanga kungongezwa ukhetho ezimbini ezongezelelweyo AF indlela. Le Spot AF, elijongeka isakhelo esinye, kodwa ukuchaneka kumasolotya lingaphantsi. Kulo mzekelo, ukukhethwa photo kwenziwa ngesandla, kodwa eos 7D ingasetyenziswa yaye iingongoma ezingqongileyo. Ngokutsho umsebenzisi ingxelo, oku kuluncedo kakhulu xa adubula ezemidlalo. Mu kuya kwa nshita ngokuzenzekelayo khetha ingongoma-19 AF imo AI Servo, ezingqonge ingongoma ayikho wabalaselisa xa esebenzayo.

iinketho ezimbini kwi menu yomsebenzisi, uvakalelo zokulandela AI Servo (III-1) kunye AI Servo AF (III-3), wongezelela bhetyebhetye olongezelelweyo xa egxininisa uyahamba kwizifundo. amathuba ezinjalo ngaphambili isetyenziswe kuphela 1D Mark III kunye 1Ds Mark III. Zimisela ukuba 7D kuqhubeka ingqalelo lo mbandela xa kufutshane injongosenzi kwisakhelo, yaye ke ukuba akunjalo, kufuneka aphendule ngayo ngokukhawuleza. Injongo yomsebenzi wabo kukunceda abafoti ukugcina umkhondo kumbandela wakho, ukuba kuyimfuneko, ukuze ngoyaba inkangeleko ngesiquphe, umzekelo, ikholam kwisakhelo xa umhloli. Ngokubanzi, inkqubo AF Canon 7D ncomo abanini ebizwa umxhelo. Ekubeni izinto kulula ukulandelela kwi viewfinder, inani kuqhume ngempumelelo kwama-90%.

Kwiimeko ezininzi ezinzima, indawo AF (okanye iqela) ukubamba kunzima, kodwa xa kusenzeka oku, isiphumo elibukhali kwi isininzi amatyala. Ngaphandle kokuba imeko uswele inani elikhulu ukuphazamisana, ozikhethelayo ukhetho smart ngongoma-19 imo AF ku AI Servo into tracking ebheka ngokupheleleyo.

Sigqibo, umsindo kunye novakalelo

Ingxelo evela kubasebenzisi, inkampani Canon ithathe amanyathelo abalulekileyo ukujongana ingxolo ngeenxa kuluhlu uhlengahlengiso uvakalelo. Umahluko phakathi imifanekiso eos 50D no 7D ephawuleka kakhulu kwi ISO 12800. Apha, umsindo malunga nesiqingatha. Nokuba ISO 3200 saphawula ukuncitshiswa kumgangatho malunga nama-30%. Okubangel 'umdla kukuba, i parameters ingxolo isiteshi ngamnye sekusondele, ebonisa unikezelo efanayo. Nangona umfanekiso eliphezulu-ubuntununtunu eos 7D unalo texture grainy, bona kakuhle kakhulu 50D. Izakhelo khangela likhulu ezinombala kunye halftones ezimnyama akukho izitropu.

Kwi computer screen ezibuthathaka kakhulu JPEG-imifanekiso zizele iinkcukacha, kodwa kukho ezinye zezibhaxu ngokombala. Oku akufuneki, kodwa ibonakala kuphela phantsi ukukhulisa ukuya ubukhulu A3. Image eyenziwe ISO 6400 nangaphezulu, pixelation ezahlukeneyo random ebomvu. Video Ngokubanzi 7D sitsala eninzi yenkcukacha. Nokuba e ISO 12800 Ikhamera ibonelela yokusebenza efanelekileyo.

webanga eliguqukayo

Xa ucwangciso olungagqibekanga, Canon eos 7D enoluhlu 12EV eliguqukayo, okuhambelana iikhamera SLR ukukhululwa best 2009 Ikhamera yenze 2 iinketho ukuphucula kuyo: ngoncedo Auto Izibane seglosi kwaye ukukhanya tone ephambili. Imvelaphi lula emthunzini kwaye zingasetyenziswa imo exposure ncwadana, kodwa ayikwazi isetyenziswe ngaxeshanye wesibini. Ngoko ke, ukuba kulondolozwe iimbalasane iinkcukacha ngcono ukuba usebenzise ulawulo exposure, uze emva koko - Izibane seglosi ukubonisa iinkcukacha izithunzi kwiifayile JPEG. Le nguqu nazo zinokusetyenziswa leefayile RAW- postprocessing software kwakukho Digital Photo Professional.

umbala spectrum

Xa ucwangcisa umfanekiso umgangatho isimbo kunye isithuba umbala we Adobe RGB Canon 7D, ngokutsho ncomo ze abanini, unako lokubamba phantse yonke uluhlu ICC bomvu kakuhle kakhulu, mauve kunye iithowuni purple. Njengesiqhelo, usasazo eluhlaza kancane kangako, ngoko ke ungazifaki ngokupheleleyo yonke isithuba Adobe RGB.

LCD, angeli nevidiyo

Nangona ama 7D uba engatshintsiyo screen, Canon iye ifakwe kulo yombhalo wangoku okhethiweyo engafihli ekuvumela ukuba ukubonisa igridi edityanisiweyo, inqanaba ngekhompyutha, kwakunye point kunye indawo AF. Kwiimeko ezininzi, ifomu agudileyo, ecacileyo eqaqambileyo, kodwa ngamanye amaxesha, ngokoluvo lwabasebenzisi kwiqela lenjongo ebonakala ubunjani kwiindawo ungapheleli ithoni egudileyo. Nangona angeli eqaqambileyo ngokwaneleyo ukubonelela manual ugxininisa, kwiimeko ezininzi kulungile ukusebenzisa umfanekiso omkhulu kwi LCD screen. Kulula ukuba ngqo, xa indawo efunekayo ye sigcawu inyuswe.

Bonisa ama 7D kwiisentimitha 3 920K oxwesileyo kunye nesigqibo. Points (307 amawaka. Pixels). Ukunciphisa reflection kunye ilitha, Canon screen Wawuzalisa umsantsa phakathi ziikristale kunye iglasi phezu izinto ezintsha ngqongqo luvela enombala isalathisi ogama zokunganyangeki ilingana kwiglasi. Oku kwaba kugwetyelwa, kuba isiboniso inika umfanekiso ecacileyo kakhulu nkqu sokukhanya okukufutshane okuqaqambileyo.

Ividiyo zingabhalwa enesisombululo ka-1920 × 1080 pixel (HD Full) kwi-30, 25 okanye 24 f / s, no-1280 x 720 okanye 640 x 480 - 60 okanye 50 f / s. Njengoko imo ukubukela on-screen ngexesha lokurekhoda ividiyo unako ukuxhomekeka, kodwa kungcono ukuba usebenzise ulawulo ngesandla, njengoko le nkqubo ithe gqolo ukufumana akhukuliswe ekungajoliswanga kuzo.

Ukongeza, ukuba nesandi sokurekhoda usebenzisa umbhobho monaural yangaphakathi (abe jack ukuba microphone wangaphandle), ngokucinezela kunye neentshukumo ngesandla kuncitshiswa ngcono. ngokupheleleyo iinkcukacha ezininzi, yaye agudileyo iintshukumo kwi ephezulu isakhelo resolution, kunye nevidiyo.

isiphelo

inkqubo AF entsha video 7D likaThixo umxhelo, kunye nokusetyenziswa kwayo ubuninzi kufuna ukuqonda kakuhle isifundo ukusuka kwindawo umbono bekhamera, kwakunye nolwazi zemisebenzi ezikhoyo umsebenzisi-ichaziwe. Oku kuzisa ukuba uhlelo Canon AF eliPhezulu Nikon. inkqubo ukuxhomekeka video 7D kuvisisana kakuhle ezona izinga sokudubula 8 K / s, nto leyo eyenza i-camera ukukhetha elisemagqabini ezemidlalo kakhulu kunye neengcali abangakwaziyo ukufikelela 1D Mark IV dollar 4499, okanye abo akufuneki woluvo enkulu . Ngokutsho ingxelo yomsebenzisi, imifanekiso ikwimo lokudubula ngokuqhubekayo-high speed maxa wambi ubunzima ukusuka ghosting, kodwa umenzi likhuphe uhlaziyo firmware ukuba wayefanele ukuphelisa le ethile.

kubonakale iinjineli Canon ukuba kwizinto ezilindelweyo kuzo, ngcono kakhulu i-video 7D kuthelekiswa 50D. Ngokuphawulekayo ukwanda iinkcukacha kuqhume kunye nesandi lonke uluhlu uvakalelo ilawulwa ngcono kakhulu, nto leyo ikhamera igagasi.