Lens Canon 24-105mm: ncomo, iinkcukacha, ncomo. Canon EF 24-105mm f / 4L IS USM

I-Canon, kunye nemilensi ye-f / 2.8 yemveli, iphuhlisa i-L-series kunye ne-l / 4 lensisi. Zincinci, zithengi kwaye zilula ngaphezu kweziqhelekileyo, kodwa zinomgangatho ophezulu kunye neempawu ezifana nokuqina kunye namandla.

I-f / 2.8 uchungechunge lubandakanya ezo zengcali ze-Canon njenge-70-200, 24-70, 16-35 (IS). F / 4 ibonisa imizekelo 70-200, 24-105, 17-40 ne-IS. Kule ngxelo, siza kuthetha nge-EF 24-105mm / 4L I-USM.

Ubume Bokujonga

Inyaniso yokuba ifowuni yowomxholo weL, unokuxelela ngokukhawuleza, ngokukhawuleza ukuba i-lens igwa ezandleni. Yaye kungekhona nje ngenxa yobuncoma obomvu emaphethelweni angaphambili - oku kuboniswa ngamandla ayo nokuthembeka. Ukugxinwa kweTsimbi kuncinci kunxiba kunxibe kuneplastiki, kwaye ukukhuselwa ngothuli nokunyamezeka kuya kufumaneka xa kuqhutywe imvula encinane. I-ringson ultrasonic imoto ngokuchanekileyo, ngokukhawuleza kwaye ngokukhawuleza ifumana ingqwalasela ephambili. Imodi yomqulu iyatholakala.

I-EF 24-105mm / 4L - I-lens ye-Canon, iimpawu zobuchwephesha ezinikezela ngesilinganisi esihle kakhulu sobude obude. Mhlawumbi ungcono kunama-24-70 mm / 2.8L. I-24 mm inikezela ngeyona ngqungquthela enkulu. Zomibini iilensi zifihla uluhlu oluqhelekileyo kwindawo engama-50 mm, kodwa lo mzekelo uphawula umzobo, amaninzi amanxeba angama-80-100 mm. Iikhamera ezipheleleyo ngeefometers zibonelela ngeefayile ezibalaseleyo ezifana 'nentloko kunye namagxa'. I-70mm 24-70 yokunciphisa ithetha ukuba le lensi ayifanelekanga imifanekiso enjalo.

Ukongezelela, lo mzekelo uwasusa ngokupheleleyo imihlaba, amaqela abantu kunye nezakhiwo. Le yenye yeenjongo zeplani jikelele, ngaphandle kokuba kunzima ukulawula kunye nokuba unakho iholide enkulu. Ukuze abalandeli basuswe ngobungakanani obude belo mzekelo kuya kunika ithuba elinjalo. Kakade, i-105 mm ayanele ngokwabo ukubandakanya ukuzingela iifoto-kuya kufuneka ifakwe nge-telephotooptics 100-400mm / 4.5-5.6L.

Ngomlinganiselo we-670 g, i-lens ilungile ngakumbi kunomzekelo wama-28-70mm / 2.8, ubunzima bawo buyi-950 g. Ewe, oku akukwenzi kube lula okanye kuhambelane.

Ukuphakama okuphezulu okulingana ne-f / 4 akusiyo umda weminqweno, kodwa ubuncinci kuqhubeka kuyo yonke indawo yobude obude kwaye i-fission yonke ibhetele kunokuba ezininzi iilensi zokusondeza kumda wazo ophezulu. Ukudubula ngaphakathi, kwiimeko eziphantsi zokukhanya, izicwangciso ze-ISO eziphezulu ziya kufuneka. Kodwa ngakolunye uhlangothi, enye inzuzo yeCanon EF 24-105mm / 4L yindlela yokwakha yokuzinza, evumela ukuba ukwandise isivinini sokuvala ngokuphindwe kathathu. Ngoko ukuba i-photographer ifumene iifoto ezibukhali ngaphandle kwe-IS kwi-105 mm nge-1/125, ngoku unokuthatha imifanekiso kwi-1/15 s. Yingakho i-lens ifanelekile ukudubula kwangaphakathi, ngokukodwa emini, nangona i-IS ingenakukuthintela ukugqakraza kwemifanekiso yezinto ezihambayo, kuphela ukuchazwa okufutshane kunokukwazi ukujamelana nayo. I-F / 2.8 i-optics e-EF 24-70, engenayo isisombululo, okanye i-17-55 ifanelekile ngakumbi ukufaka imifanekiso kwiimeko eziphantsi zokukhanya. Ngokuqinisekileyo, i-flash ihlala isondela ekuhlanguleni, kodwa iyonakalisa umoya wokukhanya kwemvelo.

Xa i-lens (kunye no-70-300 I-IS) yabonakala kuqala ngo-2005, iisampuli zokuqala phantsi kweemeko ezithile zithinteka kwi-glare. Ukuqulunqwa kwangoko kwakhawuleza, kwaye ukususela ngo-2006, ii-lens zenziwe ngaphandle kwesi siphumo.

I-Optics inamalungu angama-18, kuquka enye i-Super UD kunye ne-three aspherical, eyakuvumela ukwandisa umgangatho womfanekiso kunye nokunciphisa ukukhawuleza, nangona ukuvuleka kuvulekile.

Le lensi yekhamera yeCanon isayinwe ngokupheleleyo, oko kuthetha ukuba kukho iifayile phantsi komtshintshi wokugxilwa kunye nokusondeza iisongo, kunye nakwintaba. Le ndlela yokugqibela isebenzayo kuphela xa i-optics isetyenziselwa igumbi elitywinwe. Oku kuyintloko yochungechunge lwe-EOS 1. I-Canon yokukhuselwa okongezelelweyo ikhuthaza ukusetyenziswa kwesicatshulwa se-77-mm se-ultraviolet, ukuba i-lens isetyenziswe kwimvula.

Impawu zoyilo

I-lens ilungelelanise ngokufanelekileyo neekhamera 40D okanye 5D. Akunzima, kodwa kunokuba idibeneyo, kwaye kulula ukuyibeka esandleni sakho. Into eyinto encinci yokudibanisa abasebenzisi kukuba i-zoom yokubhala isemva, kwaye umgca wokugxila uphambi. Ezinye iilensi zeengcali ze-Canon kunye ne-USM-motors (umzekelo, 20-35, 28-135 I-IS, 17-85 I-ISI) iyahluka kwizinto abazenzayo. Oku kungasetyenziselwa ngokukhawuleza, kodwa ngokubhekiselele kubasebenzisi, bahlala bedidekile baze batshintshe ingqalelo xa befuna ukutshintsha i-zoom.

Ulwakhiwo luyomeleleka, nangona isebenzisa iplastiki ngokubanzi ngaphezu kweyonke insimbi ye-L-series lens. Ukunyuka nokugxilwa kwenziwa ngokukhawuleza kwaye kungabonakali, njengomgca wonke womgca. Umbala omnyama, okwenyani, wenza ukuba ifowuni ibe "mfihlelo" ngakumbi kunemhlophe ye-Canon EF 70-200mm / 4L.

I-lens hood ezayo nekiti ibiza i-$ 60 ukuba uthenge yona ngokwahlukileyo. Kancinci, kodwa njengokuba i-lens isondeza ukuya kuma-24 mm, kuyimfuneko nje. Inomfanekiso wepalini obonelela ngokubanzi kunokwenzeka, kodwa nangona kunjalo akusebenzi kakuhle xa i-optics ilula ukuya kuma-105 mm. Le ngxaki yonk Enye yeenzuzo zengxube engavaliyo kukuba unokuwufikelela kwaye ujikeleze i-polarizer lens. Yenzelwe ukusetyenziswa kwikhamera epheleleyo. I-lens hood isebenza kakuhle kwezinye i-SLRs zedijithali, nangona kungenjalo ngokufanelekileyo, kwimeko engama-24mm, ngoko ke i-angle yokubheka encinci idinga ukudibanisa ngokugqithiseleyo ukulahla i-vignetting.

Isihlungi se-77mm sifanele ezinye iilensi, ezifana ne-EF 300mm / 4L, 20-35mm / 3.5-4.5, 400mm / 5.6L, 17-40mm / 4L, 16-35mm / 2.8L, i-EF-S 10-22mm I-Etc. Nceda uqaphele ukuba i-EF 16-35mm / 2.8L II idinga isihlungi se-82mm. Mhlawumbi lo yiyona kuphela i-Canon lens efuna ubukhulu obukhulu. Nge-adapter esezantsi, i-77 mm ifayile ingasetyenziselwa kwi-optics encinci. Nangona kunjalo, kulo mzekelo kakade akunakwenzeka ukufaka umxube.

Ngokubhekiselele kwingxelo yomsebenzisi, isetyenzisi sexesha elide elijoliswe kuzo lisetyenziswa kakuhle kwikhamera epheleleyo. I-APS-C-body body lens iya kuba yocingo-ntengiso, kuba nge-24 mm kwi-APS-C inikezela ngombono ofanayo no-35 mm kunye nefomathi yefomati epheleleyo. Kodwa i-Canon EF 24-105mm / f 4L I-USM ihambelana kakuhle ne-10-22mm / 3.5-4.5 kwizibuko zohlobo lwe-40D. Ukuba kukho zombini iilensi, akukho mntu uyazisola ngokungabikho kwe-23 mm, enokulingana no-16-168 mm ngokwekhamera epheleleyo.

Imveliso

Ininzi ichaza apha ixhala ngamatrices amakhulu (njenge-EOS 5D), kodwa i-Canon 24-105 f / 4L lens ingasetyenzwa ngabanye kwi-SLR yombumba, kuquka ne-EOS 20D, 30D, 40D ne-Digital Rebel series. Ekubeni iikhamera kunye ne-APS-C-sensor, eqinisweni, banqamle umfanekiso ozeleyo, ukusebenza kwabo, okubhekiselele kwizinto ezifana nokuphazamiseka, ukuvintetting, ubukhali obude kunye nokuchithwa kwe-chromatic, kuya kuba bhetele kunezithombe zefomati ngokupheleleyo. Oku kungenxa yokuba inzwa ye-APS-C imane ithatha "intetho yegolide" phakathi kwesikimu, apho amaninzi amaninzi ayaphantsi kuneemida. Ixabiso leli lilahleko yombono wembono kunye nesidingo sokwandisa umfanekiso oqingqiweyo ama-1.6 ukufumana ubungakanani obulingana nomfanekiso. Oku kunciphisa umgangatho jikelele njengoko uprintela kwizinto ezincinci ezincinane xa kuthelekiswa nezikhulu.

Ukuphazamiseka

Ukuphazamiseka kuluhlu olusuka kwi-barrel ephazamisayo ye-mm mm ukuya kutshintsho oluncinci kwi-50 mm kunye ne-soft-cloth distortion yama-105 mm. Ukuphazamiseka mhlawumbi kuya kukhangela kakhulu kwiindawo eziqhelekileyo, kodwa ukuba isifundo siyi-architecture enemizila emininzi nemigca engqongqo kwimilo, oku kungaba yingxaki. Ewe, ukuphazamiseka kunokulungiswa - Umtshintshi we-Canon we-DPP RAW angazenzekela ngokuzenzekelayo izilungiso kwiimifanekiso ze-RAW ezifunyenwe nge-24-105 / 4L. Xa ukudubula iidididi okanye ukungabikho komsebenzi wokushicilela okwenziwa ngokuqhelekileyo (okungenakwenzeka, kodwa kunokwenzeka), kufuneka ukhethe i-lens ngokuphazamiseka okuncinci. Kuzo zonke ezinye iimeko, ukuphazamiseka kwezinga liyinkohlakalo yobomi kwaye kunokulungiswa kunye nefuthe elincinci okanye elingathandekiyo kumgangatho womfanekiso.

Vignetting

Njengoko ungalindela, i-vignetting iyabonakala kwiifoto ezizeleyo ngokusebenzisa ukuvula okuvulekileyo. Kwimizuzu engama-24 kummandla ophezulu, ungabona iindawo ezimnyama, ngokukodwa kwisithofowuni ngeetoni ezifanayo (umzekelo, isibhakabhaka esibhakabhaka). I-Vignetting kwi-50 kunye no-105 mm ayikomelele ngo-24 mm, kodwa ikhona. Kwakhona, iyabonakala xa iziganeko zokudubula kunye nama-angles afanayo. Ukuyibeka kwi-f / 5.6 kunciphisa kakhulu amandla okwenza i-vignetting. Ekubeni i-matrix ye-APS-C inciphisa umfanekiso ukusuka kwinqanaba lesakhelo esipheleleyo, le mpawu ayibonakali kwiikhamera ezifana ne-SLR, kwithuba lokuvula ukuphakama kwe-24 mm. Abanye abanikazi be-APS-C, abasetyenzisile ii-lens ezipheleleyo kunye nokutshintshela kwiikhamera ezifanelekileyo, banokulindela ukumangaliswa xa bebona ukuba ininzi (ukuba ingeyo yonke into) yee-optics zabo yaqala ukubonisa i-vignetting.

Emva kokuba umfanekiso ulungiswe ngokuzenzekelayo, ukukhanya kwezimbombo kuyabonakala. Lo msebenzi unako ukulungisa ukuphazamiseka kunye nokuchithwa kwe-chromatic. Abasebenzisi bayaqaphela ukuba xa ushicilela imifanekiso emikhulu, onke amanqanaba asemgangathweni asemagqabini anqumla, kuba akukho mgangatho uhambelana nomlinganiselo we-2: 3. Ngako oko, iindawo ezimnyama zesithombe ziya kunqunyulwa nakweyiphi imeko.

Boke

I-Bokeh, okanye umgangatho wesithombe esichaseneyo, ingaphezulu kakhulu kwi-optical f / 4, ngokukodwa kwixesha elide elide. Amaphethelo ahlanjululwayo athululiwe ngokukodwa kwaye abukhali, kodwa ezo zinto ziqhelekileyo.

Iqondo lokudibanisa lixhomekeke kakhulu kumlinganiselo wemida ukusuka kwikhamera ukuya kwinqaku kunye nokusukela kwisigxina. Nangona ifumaneka kufuphi nekhamera kunemvelaphi, i-bokeh iya kukukholisa.

Nangona i-lens ayikwazi ukukhuphisana namanye ama-lens wide-open, ikakhulukazi nge-EF 85mm / 1.2L, i-24-105mm / 4L, i-105mm yinto ehle kakhulu yokuhlula isihloko esivela ngasemva.

Uzinzo

I-Canon ithi ukunika amandla umsebenzi wokuzinza umfanekiso kukuvumela ukuba ukwandise isivinini se-shutter ngamaxesha amathathu. Imifanekiso engama-24 mm kunye ne-shutter speed ye 1/6 s icacile kwaye kwaye malunga nama-50% amafayile athathwe kwi-1/3 s aphumelele. Kwimitha eyi-105 mm, ezininzi zeefoto ezifanelekileyo zingenziwa kwi 1/13 sec. Ewe, amafowuni awafanelanga ukuba afakwe kwi-tripod, kodwa ecacile ngokwaneleyo. La manani ahambelana nesitatimende seKhanon yezohlulo ezintathu ezongezelelweyo. Xa ukudubula ngokukhawuleza okuvaliweyo (1/3 sec ukuya kwi-24 mm, 1/13 ukuya ku-105 mm), kukusoloko kuluvo olufanelekileyo lokubamba ubuncinci amabini okanye amathathu amafowuni, oku kuya kukwandisa kakhulu amathuba okufumana ubuncinane umfanekiso omnye. Konke malunga nepesenteji. Ezinye iifoto ozithathayo, eziphakamileyo amathuba okwenza udulo oluhle.

Jolisa

I-Canon engama-24-105 mm f / 4L lens ikuvumela ukuba ufumane imifanekiso ecacileyo kuzo zonke izibhengezo zombini phakathi kwesikimu nakwiinkalo, nangona usebenzisa i-EOS 5D inzwa epheleleyo. Kukho ukunyuka okukhawulezayo kokukhawuleza xa ukuvulwa kuvaliweyo ku-f / 5.6, ebonisa indlela i-optics efanelekileyo ngayo kwi-f / 4. Mhlawumbi aphantsi kancinane ngo-105 mm kune-24 mm, kodwa ke unika ubukhali obaneleyo kulezi zide. Inyaniso yokuba i-Canon 24-105 / 4L lens icacile ngokucacileyo ngokuvuleka okukhulu. Ekubeni isithintelo esincinci sincinci, ukungabikho kwesidingo sokunciphisa isithintelo sokufumana imifanekiso ecacileyo yinto engathandabuzekiyo.

I-Canon ye-Lens 24-105 yokuphononongwa kwabasebenzisi ngokuthelekisa ubukhali bayo kunye ne-optics 24 / 2.8, ebizwa ngokugqithiseleyo kwiikona, kodwa kunye nezinga eliphezulu lokugqithisa nokuphazamiseka. Ubukhali phakathi kwendawo buhlala, kwaye kunye nezimbobo ezincinci, i-optics inikezela umgangatho omhle, kwimiba.

Kwi-matrices ye-APS-C, umphumo ubonakala ungcono, kuba iinqununu zesakhelo esipheleleyo zinqunyulwa kwaye inzwa ibona kuphela inxalenye esemqoka yomfanekiso apho ukukhwabanisa kukuncinci.

Ukuchithwa kwe-Chromatic

Ngokomnini, aberrations chromatic ziphakathi kwemida eyamkelekileyo kuzo zonke ubude obude. Umbala ogqithiseleyo we-edging uyabonakala kwimida yesigxina esipheleleyo, kodwa ukuba udubula kwimodi ye-RAW, ukulungiswa ngokuzenzekelayo kwi-DPP kukuvumela ukuba uyilungise, okanye ungasebenzisa umhleli wemifanekiso njenge-Photoshop. Amanqanaba okuphazamisa kwi-24 mm ayafana ne-24mm / 2.8, nangona, mhlawumbi, ngaphantsi kancane.

Glare

Abasebenzisi bayaqaphela ukuba i-glare ilawulwa kakuhle. I-Canon engama-24-105 / 4L lens engemuva ine-diaphragm engumxube, ngokungathandabuzekiyo enegalelo kumgangatho wayo ophantsi. Xa imodeli yaqala ukuqala ngo-2005, yayinenkinga encinane nge-glare kwi-24 mm, kodwa yapheliswa ngokukhawuleza, kwaye ukususela ngo-2006 esi siphene sasingasabonwa.

Ukudibanisa ne-EOS

I-lens inikeza ulwazi malunga nomgama kumxholo, ukuqinisekisa ukuhambelana nombane we-E-TTL II kwi-1D no-5D. Xa isetyenziswe nge-EX Speedlite, idlulisela idatha yedatha kwiprogram yokubala, okuphucula kakhulu umphumo. Ukongeza, ngelixa ugcina uthuli nokuxhatshazwa kwamanzi kwikhamera yezakhono, i-lens ixhotywe ngendandatho yokutywinwa kwindawo yokuqhotyoshela kwikhamera, kunye neziqulatho ezininzi zokuhamba. Uhlobo lwe-autofocus kunye ne-switch stabilization switches litshintshile ukuze luphephe ngengozi okanye luvaliwe.

Izixhobo

Ii-Optics zithengiswa ngesikhwama esisezingeni eliqhelekileyo elinomxube. Kukho i-lens cap of Canon 24-105 mm f / 4L. Nangona i-hood ingenziwanga ngeplastiki yanamhlanje ngokugqithiseleyo kunokuba ikhusele ngakumbi kunemikhwaphu eplastiki echanekileyo esetyenziswa apha, ngokubanjisene nabanikazi, yenza umsebenzi wayo ngokufanelekileyo ukukhusela ukubonakala kwe-glare - ukucinga okungafunekiyo kwiifoto ezibangelwa lilanga Kwisakhelo, kunye ne-haze - ukulahleka kokungafani kunye nokubala kombala, kubangelwa ngumthombo wokukhanya okukhazimulayo, okungekho ngokubonakalayo kumfanekiso.

Ihood yenziwe ngefomali kwaye incinci kangangokuthi ivula ukufikelela kuma-filters ayi-77 mm. Ukusetyenziswa kwee-polarizers kunye ne-gradient filters, ezifuneka ukuba zijikelezwe phambi komfanekiso ngamnye, azibangelwa yimpendulo yomsebenzisi, kuba i-front element yefowuni ayitshintshi ngexesha lokucima okanye ukugxila.

I-Canon 24-105 I-Lens: Iimpawu eziPhezulu

Ngokwebasebenzisi, i-24-105 / 4L yenye yeyona ndlela ifanelekileyo ye-zoom zoom. Lihlala lide kakhulu, lixhotyiswe nge-ultrasonic ye-ring-type ukugxininisa imoto kunye nesimo sokuzinza imifanekiso, evumela ukunyuka kwamaxesha amathathu kwixesha lokubambisa iimeko eziqhelekileyo. Ukugqithwa okuphezulu kuqhubekayo kulo lonke ubude obujoliswe kuyo, ekuthi, ngokwembono yabanini-mali, akuyithandi kakhulu ukutshulwa kwe-angle-angle, kodwa kulungile ukuya kuma-105 mm. Abasebenzisi abacebisi ukusebenzisa le optics ngeekhamera ze-APS-C kuba uluhlu olusebenzayo lwama-38-168 mm alusebenzi kakhulu.

Ilens kucacile kakhulu, kunye nokulungiswa kwakhe mkhulu 24-70mm eninzi ngakumbi / 2.8L. Xa ebanzi-engile sondeza le ngxaki lo uhlaba umfanekiso kunye ugobile-moya focal (enye ubude bamalungelo ezesini ukuze). Kufutshane iimbombo isakhelo kwiindawo swi eentsontelo ezimibala kuvela, kodwa oku akukho okuphawuleka kugxilwa. Emngxunyeni setyhula inika bokeh entle. Njengokuba kunjalo kuwo onke ngokubanzi-angle lens, iimbombo yesakhelo kukho shadow, kodwa kungancitshiswa ngokunciphisa emngxunyeni okanye software (kwimeko oku ephazamisa).

Nangona lens ezincinane elula, oko zibelula ngaphezu enkulu kwaye usinda 24-70mm / 2.8L.

abasebenzisi Long-term abaye eninzi iifoto, yanelisekile kakhulu lens. Le ngokukhanya ubhetyebhetye ngokwenene, yaye uyakwazi ukuthatha uhambo ngokwesimo. Kuba abanini professional bacebisa ukusetyenziswa 24-70 / 2.8L ngenxa kuluhlu yayo emxinwa ngakumbi ekugxilwe kuzo, nto leyo iba imbobo enkulu kwaye inikeza iindlela okunobuchule. Ngokutsho abanikazi, ilens Canon 24-105 (ixabiso - 999 zeerandi US) ibiza imali entle, kodwa umthengi kuya kufuneka ugqibe oko kulungele khona. Ukhetho f / 2.8 kwi ubungakanani kunye iindleko EF 24-105 / 4L wayeza ungafezeka, kodwa nomvelisi ngokukhanya loo nto.

sinqumo

Canon EF 24-105mm / f 4L IS USM - lens elungileyo ngokwenene. Ngokutsho abanikazi, ngomhla a full-isikali iikhamera SLR digital kuluhlu yayo zoom ezilungele ngokukhanya jikelele-njongo, kubandakanywa ukusetyenziswa kwayo imihlaba kunye eni. Ilens nga bamtola ububanzi imbobo evulekileyo ivelisa imifanekiso ecacileyo kakhulu nokuzinziswa ngesondo-3 isantya avumelekile. photos ecacileyo afunyanwa kwi ukuya ku 3.1 imizuzwana kwi-24 mm kunye 1/12 umzuzwana kwi-105 mm. Akubalulekanga kunciphisa umbono jikelele omuhle oqaphelekayo kunye ubugqwetha, ingakumbi kwi-24 mm. Oku kube lula walungisa digital post-processing, kodwa kusoloko kungcono xa kukho imfuneko enjalo kuphakama. Ukuba lens "Canon" yaphuhliswa ukuze kupheliswe omuhle kunye ubugqwetha, ngoko mhlawumbi bekuya kuba phi elikhulu, inzima yaye zibiza imali eninzi yaye iza siphelelwa ubude focal. Ukuba kunjalo, ngoko ke ukulalanisa sihlawulelwe.

Lekhamera DSLR nepolnoformatnyh focal ubude lens Canon 24-105 / 4L elilingana 38-168 mm ngokupheleleyo-isakhelo camera, ukuze umsebenzisi ulahlekelwa bengxelo ngokubanzi. Kodwa ke, umgangatho umfanekiso liphezulu kakhulu, njengoko iikona kunye neekona yesakhelo, apho omuhle kunye aberration kunamandla kuba wayenze isifungo. Ukuba uphethe lens Canon EF 24-105 zidityaniswe kunye 10-22 / 3.5-4.5, iza kunika ingxelo 10-105 mm.