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

Canon ine, kanye lens zendabuko ezingaphezu f / 2.8 ukuhlakulela L umugqa abanamalensi f / 4. Kodwa zincane, eshibhile futhi ulula kunangabangamashumi ezivamile, kodwa abe high izici ezifana amandla futhi impermeability.

Uchungechunge f / 2.8 lens kuhlanganisa ezinjalo professional Canon, efana 70-200, 24-70, 16-35 (IS). F / 4 lezi zimo zezulu zokuzenzela 70-200, 24-105, 17-40 IS. Kulesi Ukubuyekeza sizogxila EF 24-105mm / 4L IS USM.

izici Uhlolojikelele

Iqiniso lokuthi idivayisi kuyinto uchungechunge L, singasho njengomprofethi nje lens ukuwela ezandleni. Hhayi kuphela ngenxa indandatho ebomvu maphambili onqenqemeni - lokhu kuboniswa izikhwepha zayo kanye nokwethembeka. Metal entabeni kakhulu ukubuyeka singangena ukugqoka kuka plastic, kodwa kusuka uthuli futhi umswakama singaba usizo kabi uma ngokudubula ngesikhathi imvula ukukhanya. Ring-uhlobo Ultrasonic ngokunembile, ngokushesha futhi cishe buthule kugcilwa ephelele. Imodi Iyatholakala futhi mathupha.

EF 24-105mm / 4L - Canon lens, izici kabani ngokomzimba kumnika iqoqo esihle lenebudze eqondile. Mhlawumbe kungcono ngisho nangaphezu 24-70 mm / 2.8L. 24 mm unikeze engela kweqiniso ububanzi. Kokubili lens amboze uhla evamile e-50 mm, kodwa lokhu imodeli sihlanganisa portrait futhi, njengoba abaningi ngokuthi ubude ebalulekile 80-100 mm. -Format Okugcwele amakhamera ngezimiso ezinjalo ukunikeza amavidyo omuhle "ikhanda namahlombe". 70 mm 24-70 komkhawulo kusho ukuthi le lens lingaphansi efanelekayo izithombe ezinjalo.

Ngaphezu kwalokho, lokhu imodeli kususa kahle namathafa, amaqembu abantu kanye nezakhiwo. Lena ngenye yezinjongo kwenjongo jikelele, ngaphandle okuyinto kunzima ukwenza, nobani ungachitha ephelele zakho zokuvakasha. Abalandeli ngokudubula nge eside ebalulekile ubude imodeli futhi unikeze ithuba. Yiqiniso, 105 mm alwanele ukubhekana Photoshoot - ke kuyodingeka kulekelelwa telefotooptikoy 100-400mm / 4.5-5.6L.

Nge Isisindo 670 g lens imodeli kakhulu ukuxegiselwa 28-70mm / 2.8, nenqwaba okuyinto - 950 Nokho, lesi simo asisho enza kube lula noma ezihlangene.

beso Maximum ilingana f / 4, izifiso umkhawulo akuyona, kodwa okungenani kuba njalo phezu kwawo wonke zoom ibanga lonke division ungcono zoom lens kakhulu umkhawulo wabo engenhla. Ukuze bacibishele izilungiselelo ISO okusezingeni eliphezulu endlini, ezimweni ongaphakeme ukukhanya, ngeke kudingeke. Kodwa ngakolunye uhlangothi, omunye ngokunenzuzo Canon EF 24-105mm / 4L kuyinto esakhelwe kwesithombe uhlelo evumela ukuthi ukukhuphuka 3-ngeshumi isivinini. Ngakho lokho uma umthwebuli wayethola izithombe abukhali ngaphandle IS at 105 mm 1/125 isekhondi, kodwa manje angakwazi ukuthatha izithombe 1/15 isekhondi. Yingakho lens kufanelekile ngokudubula endlini, ikakhulukazi ngesikhathi suku, nakuba KUNJALO angeke ukuvimbela ukunyakaza ukufiphala, kuphela ukuchayeka iDemo uyakwazi ukubhekana nakho. F / 2.8 yokukhanya EF 24-70, lapho kungekho isimame, noma nepolnoformatny 17-55 maningi efanelekayo ekuthumbeni izithombe ezimweni ongaphakeme ukukhanya. Yiqiniso, usizo noma nini ku-flash, kodwa ubulala umoya ukukhanya yemvelo.

Lapho lens (kanye 70-300 IS) uqala ukuvela ngo-2005, amasampula wokuqala ngaphansi kwezimo ezithile, uhlushwa ukukhanya. Umklamo zase zihleliwe ngokushesha, futhi kusukela ngo-2006 i-lens zavezwa ngaphandle lokhu ethile.

Yokukhanya inezigaba 18, kuhlanganise omunye Super UD futhi ezintathu aspherical, bese kukhula ikhwalithi yesithombe noma ukunciphisa wayephazamisekile ngisho nalapho beso uvuleke gengelezi.

Lokhu lens for Canon ikhamera uphawu ngokuphelele, okusho ukuthi gaskets ngaphansi focus nokusondeza izindandatho ushintshele, kanye entabeni. Kulokhu, zinyanga ngempumelelo ngokugcwele kuphela uma zisetshenziswa yokukhanya uphawu ekamelweni. Kuyinto ngokuyisisekelo uchungechunge amadivaysi EOS 1. Canon Inkampani ukuze uqhubeke uvikele incoma usebenzisa 77 mm UV lemifanekiso, uma lens isetshenziswa emvuleni.

izici design

I lens ulinganisela ngokuphelele ngamakhamera 40D noma 5D. Akasiye engasindi, kodwa ngempela compact, futhi ukhululekile kutsi ayibambe ngesandla. Into kuphela ukuthi kancane abasebenzisi kudida - lena iyini imbangela indandatho zoom kanye focus indandatho sise phambi. Okunye lens professional Canon ne USM-motors (isib, 20-35, 28-135 IS, 17-85 IS) kuhluke ukuthi zitholakala okuphambene. Ngalokhu, ungakwazi ngokushesha ukujwayela, kodwa ngokuvumelana abasebenzisi, avame udidekile futhi uguqule ukugxila lapho ufuna ukushintsha zoom.

Umklamo negalelo kakhulu, Nakuba kunenkolelo eyandile ngaphezulu esetshenziswa plastic kuka lonke uchungechunge lens zonke-metal L. Sondeza futhi ugxile zenziwa kahle futhi ngaphandle jerks, njengoba lonke uhla emgqeni. Black Yiqiniso, kwenza idivayisi kancane ngaphezulu "nezimfihlo" kuka lens ezimhlophe Canon EF 70-200mm / 4L.

Hood, okuyinto ifakiwe, kuwufanele $ 60, uma uthenge ngokwehlukana. It mncane impela kodwa njengoba zoom lens 24 mm, kuba ngokuphelele kunesidingo. It ukuma isigcebe sembali enikezela esiphezulu Ukusabalala kungenzeka, kodwa nokho akusiyo ephumelela kakhulu lapho yokukhanya is yakhishwa 105 mm. Lena inkinga zonke zooms. Enye inzuzo ye-hood engajulile wukuthi kungenzeka ukuba alwele ukufinyelela nokufanelekela vula polarizer lens. Yenzelwe ukusetshenziswa ikhamera agcwele. Hood usebenza emihle kwamanye digital SLR amakhamera, kodwa lithi akufanele ibe ngempumelelo, ngisho isikhundla 24-mm, ngakho wokubuka engela encane kudinga hood ezijulile ukuqeda vignetting.

77 mm Isihlungi ezifaneleke nezinye lens ezithile, njenge-EF 300mm / 4L, 20-35mm / 3.5-4.5, 400mm / 5.6L, 17-40mm / 4L, 16-35mm / 2.8L, EF-S 10-22mm et al. uqaphele ukuthi EF 16-35mm / 2.8L II edingekayo 82-mm zokuhlunga. Mhlawumbe lena lens kuphela "Canon", edinga ube usayizi omkhudlwana. Nge phansi-adaptha 77 mm izihlungi lungasetshenziswa ku yokukhanya ezincane. Nokho, kulesi simo, akuseyona kungenzeka ukufaka kwenzakalani.

Ngokusho impendulo yomsebenzisi, isethi samanje ubude ebalulekile kakhulu ukusetshenziswa Uhlaka yekhamera ngokugcwele. APS-C-umzimba obuyisa lens evamile e Telephoto zoom, njengoba ne 24 mm APS C ukunikeza engela efanayo umbono njengoba 35mm e Uhlaka format egcwele. Kodwa Canon EF 24-105mm / f 4L IS USM kahle nge 10-22mm / 3.5-4.5 at uhlobo SLR 40D. Uma kukhona kokubili inhloso, akekho uzozisola ukungabi khona 23 mm, kokuba okulingana 16-168 mm ukusuka umbono ikhamera yobude obugcwele.

umkhiqizo

Empeleni wathi lapha kuziwa uhlaka esigcwele inzwa (ezifana 5D EOS), kodwa lens Canon 24-105 f / 4L lungasetshenziswa kwezinye SLR digital amakhamera umakhi, kuhlanganise EOS 20D, 30D, 40D futhi Digital Rebel chungechunge. Kusukela amakhamera nge APS-C-inzwa, eqinisweni, usike isithombe esigcwele ezinyakazayo, ukusebenza kwabo eziphathelene nezinto ezifana ukuhlanekezela, vignetting, onqenqemeni sharpness impambuko ye-chromatic, kungaba ngcono ngisho nangaphezu yobude obugcwele. Lokhu kungenxa yokuthi inzwa APS C ithumba a "indawo elimnandi" maphakathi ifremu, lapho iningi aberrations ingaphansi kwe at emaphethelweni. Intengo lena ukulahlekelwa engela ezithile umbono kanye nesidingo ukwandisa umfanekiso okhrophiwe by izikhathi 1.6, ukuthola ubukhulu okulingana isithombe. Lokhu kunciphisa izinga jikelele we ukuphrinta njengomuntu ezingezinhle lincane uma liqhathaniswa enkulu.

Ukuhlanekezelwa

Ukuhlanekezela basukela ngokulinganisela emgqonyeni ukuhlanekezela at 24 mm kuya ushintsho oluncane ku ekupha 50 mm futhi ethambile pincushion ukuhlanekezela at 105 mm. Ukuhlanekezela, cishe ngeke obonakala khulu ku isibhamu abavamile kakhulu, kodwa uma le ndaba izakhiwo inqwaba imigqa mpo futhi enezingqimba egama-uzimele, kungaba inselele. Ukuhlanekezela Yiqiniso, kungaba ukulungiswa - siqu DPP RAW-Converter Canon uyakwazi ukusebenzisa ngokuzenzakalelayo kwamaphutha kuya RAW-image, etholwe ngosizo 24-105 / 4L. Lapho ngokudubula slide noma emibi ezivamile ukuphrinta optical (okuyinto Cishe kwakungenakwenzeka, kodwa kungenzeka), kufanele cishe siyokhetha ilensi ukuhlanekezela omncane. Ukuze zonke ezinye izimo, ukuhlanekezela esikalini kuyinto eyenzekayo futhi ezingelapheka nomthelela encane noma unnoticeable ku ikhwalithi yesithombe.

vignetting

Njengoba kulindelwe, phezu ogcwele izithombe usebenzisa beso ezivulekile iba vignetting lubonakale. 24 mm endaweni beso esiphezulu kungabonwa emagumbini amnyama, ikakhulukazi isithombe ithoni iyunifomu (isib esiluhlaza). Vignetting 50 futhi 105 mm njengoba donsile njengoba 24 mm, kodwa. Nalapha kuba obonakalayo uma ngokudubula izigcawu nge engele iyunifomu. Ukufakwa at f / 5.6 iyehlisa umphumela vignetting. Njengoba matrix APS C enquma ukuthi isithombe Uhlaka isikhungo egcwele, umphumela onjalo esibukweni amaseli azinakwa, ngisho ngesikhathi kuvulwa esiphezulu diaphragm ukuba 24 mm. Abanye abanikazi APS-C, okuyinto balujabulela kakade yobude obugcwele amalensi bashintshele amakhamera ezifanele bangalindela ukumangala lapho bebona ukuthi iningi (uma kungezona zonke) ka yokukhanya yabo waqala ukubonisa vignetting.

Ngemva ukulungiswa othomathikhi yesithombe kuyabonakala ukukhanyisa engeli. Lokhu umsebenzi Ungase futhi ngesikhathi esifanayo sokulungisa ukuhlanekezela futhi wayephazamisekile chromatique. Amalungu uqaphele ukuthi bonke osayizi ejwayelekile lephepha cut emakhoneni lapho nokuprinta izithombe ezinkulu, njengoba engekho ejwayelekile akusho sifana isilinganiso 2: 3. Ngakho-ke, ezingxenyeni amnyama sesithombe zizosikwa nganoma iyiphi indlela.

Boke

Boke noma defocussed izinga image, yokukhanya ngoba f / 4 ezingaphezu kuka Uyakufanelekela, ikakhulukazi ubude eside eqondile. imiphetho unfocused futhi kancane abukhali sikhungathekile, kodwa kungokwemvelo yokukhanya ezinjalo.

Nobulukhuni kuncike kakhulu ku-isilinganiso amabanga kusukela ikhamera isihloko futhi kusukela into ngemuva. Nakuba itholakala eduze ikhamera ngaphandle bokeh isizinda ziyojabula.

Nakuba lens awukwazi ukuncintisana nge beso lens enkulu, ikakhulukazi nge EF 85mm / 1.2L, 24-105mm / 4L, 105 mm ngokwanele ehlukanisa kahle isihloko kusuka ngemuva.

njengoba sinjalo

Canon uthi ukufakwa yesithombe eliletha ukuthula umsebenzi kungandisa yesivalo izikhathi 3. Isithombe nge 24 mm-imisiwe 1/6 nge kucace kahle ngisho mayelana 50% of isibhamu ezithathwe 1/3 nge ziyimpumelelo. At ibanga 105 mm iningi izithombe ezinhle kungenziwa 1/13 isekhondi. Yiqiniso, amafulemu akuzona nsé uma bethathwa nge-tripod, kodwa kucace ngokwanele. Lezi zinombolo ziyavumelana isitatimende Canon izigaba zezizwe ezintathu ezengeziwe. Lapho uqopha nge enjalo yesivalo okusezingeni eliphezulu ngesivinini (3.1 kuya 24 mm, 1/13 mm kuya 105) njalo kuwumqondo omuhle ukuthi uthwebule ozimele okungenani emibili noma emithathu, kuyoba kakhulu amathuba ukuthola okungenani isithombe esisodwa abukhali. Lonke iphuzu iphesenti. Izithombe zizokwenziwa, ngcono ithuba lokwenza isithombe esihle.

Amakhaza

Lens Canon 24-105 mm f / 4L ikuvumela ukuba uthole izithombe ezicacile ekutheni zonke apertures maphakathi ifremu, kanye ezisemagumbini, ngisho nalapho asebentisa luhlaka esigcwele inzwa EOS 5D. Kukhona kuphela ukwanda kancane nokucija lapho uvala beso ukuze f / 5.6, elibonisa yokukhanya kanjani okuhle ngaso f / 4. Mhlawumbe, kunethemba elincane liphenye 105 mm, 24 mm, kodwa nokho ukunikeza nokucija eyanele lezi ubude ebalulekile. Iqiniso lokuthi lens Canon 24-105 / 4L has a ngokunemba high at ebanzi beso evulekile, iyamangalisa. Ngoba isilinganiso beso incane ke akasidingi beso constriction ukuthola izithombe ezicacile kuwusizo.

Lens Canon 24-105 izibuyekezo umsebenzisi, eqhathanisa ngayo nokucija le yokukhanya 24 / 2.8, ngokuthi libukhali ezisemagumbini, kodwa futhi nge ezingeni lelisetulu vignetting futhi ukuhlanekezela. Ubukhali lugcinwa maphakathi, futhi ngamanani aphansi apertures isihlobo yokukhanya inikeza izinga ezinhle, ngisho at emaphethelweni.

Esikhathini APS C matrices umphumela kubukeka ngcono nakakhulu njengoba emakhoneni incishisiwe futhi Uhlaka inzwa umnyuziki ubona nje ingxenye ephakathi nendawo yendlela esakha izithombe aberrations kancane.

impambuko ye-chromatic

Ngokombono abanikazi, le aberrations chromatique kukhona ngaphakathi kwemingcele eyamukelekayo nhlobo ubude ebalulekile. Kakhulu okuncane umbala fringing ebonakalayo imiphetho lonke uhlaka, kodwa uma ukudubula kwimodi RAW, ukulungiswa othomathikhi ku DPP kungaba ulungise lokhu, noma ungasebenzisa software ukuhlela ezifana Photoshop. amazinga ukuhlanekezela at 24 mm ifaniswe 24mm / 2.8, nakuba mhlawumbe kancane kancane.

ukukhanya

Amalungu waphawula ukuthi kokufiphala ilawulwa kahle. Lens Canon 24-105 / 4L langemuva ingxenye has a beso elingunxande, ngokungangabazeki okuyinto enomthelela ezingeni yabo ephansi. Lapho imodeli yethulwa ngo-2005, yena nenkinga encane nge igqamuka okuphawulwe 24 mm, kodwa isuswe ngokushesha, futhi lokhu ukuntula ayisaxhunyanisiwe waphawula kusukela ngo-2006.

Ukuhlanganisa EOS

I-lens inikeza ulwazi mayelana ibanga nendaba, ukuqinisekisa ukuhambisana ne flash E-TTL II 1D futhi 5D. Uma kwenziwa lapho kufanele EX Speedlite ke okuhambisa ibanga Imininingwane ukubala uhlelo setfulo, okuyinto kakhulu ngcono umphumela. Ngaphezu kwalokho, ukugcina ikhamera dust- futhi amanzi angangeni, lens unikezwa indandatho Ukubekwa uphawu iphuzu okunamathiselwe ku ikhamera, nezimpawu eziningi futhi izingxenye ezinyakazayo. Ifomu sekuqalile le AF mode futhi kwesithombe kushintshiwe ngendlela ezifana ukugwema ithuba ngephutha noma vala.

izesekeli

Yokukhanya okuthengiswa esikhwameni standard nge iyinhlanganisela nesizotha. Kukhona ikhava yelensi Canon 24-105 mm f / 4L. Nakuba le hood akuyona eyenziwe ngepulasitiki esine surface anolaka, okuyinto engcono kakhulu livikela ke kusuka ekuklwebhekeni kuka plastic ecwebezelayo lisetshenziswe lapha, ngokuvumelana abanikazi, ke ubhekana abangababi bemisebenzi yaso ukuvimbela ukukhanya - zibona engadingeki esithombeni, kubangelwa ilanga, okuyinto in the ifremu, kanye ufasimbe - ekulahlekelweni Ngokuphambene nombala saturation, obizwa nangokuthi umthombo wokukhanya elikhanyayo, okuyinto ngokuzikhethela ekhona isithombe.

Hood eyenziwe ukuma amacembe kanye mancane kakhulu ukuthi inikeza ukufinyelela 77-mm izihlungi. Ukusetshenziswa polarizers isiyingi nokuhlunga umyela ukuthi kumelwe uphendukisa phambi isifinyezo ngamunye, akakubangeli, njengoba element phambi idivayisi, lapho ukuhlehlisa noma ngokugxila akuyona ujikelezisa ku impendulo yomsebenzisi, zabasebenzi.

Lenses Canon 24-105: Uhlolojikelele izici

Ngokusho abasebenzisi bayo, 24-105 / 4L ingenye engcono jikelele-njongo ejwayelekile zoom lens. Futhi unamandla kakhulu, ifakwe i esihle motor ultrasonic le ngokugxila indandatho uhlobo image stabilizer evumela ukukhuphuka 3-ngeshumi ukuchayeka isikhathi, uma kuqhathaniswa izimo evamile. beso eliphezulu lingu njalo kulo lonke isikhawu lenebudze ebalulekile, okuyinto, ngokusho abanikazi, hhayi ezikhangayo kakhulu ngesikhathi engeli ebanzi, kodwa kuhle kakhulu 105 mm. Abasebenzisi musa batusa ukusetshenziswa yokukhanya nge APS-C-amakhamera ngenxa yokuthi ububanzi ephumelelayo 38-168 mm, hhayi esiwusizo kakhulu.

I lens kucacile kakhulu, futhi isinqumo salo bebakhulu ezibizayo 24-70mm / 2.8L. Lapho kabanzi-angle ukusondeza le nkinga ukuhlanekezela yesithombe kanye ugobile indiza ebalulekile (ezinye ubude ebalulekile ukuze). Eduzane amakhona uzimele ezingxenyeni igxile zamaviyo anemibala avela, kodwa lo mphumela akuyona kangako kugxilwa. I beso isiyingi ihlinzeka bokeh enhle. Njengakuwo wonke lens ebanzi-angle, amakhona Uhlaka kukhona ithunzi, kodwa zingancishiswa ngu ukunciphisa beso noma isofthiwe (uma lokhu kuphazamisa).

Nakuba lens incane futhi engasindi, kulula kakhulu kunalezo emikhulu futhi usinda 24-70mm / 2.8L.

abasebenzisi eside abenze a lot of izithombe, waneliseke kakhulu ne-lens. Lena yokukhanya enemisebenzi ngempela, futhi kungase kuthathe uhambo e uhlobo. Abanikazi professional ukutusa ukusetshenziswa 24-70 / 2.8L ngenxa ezincane eziningi focus uhla yayo, okuyinto has a beso esikhulu futhi inikeza izinketho eziningi lokudala. Ngokusho abanikazi, lens Canon 24-105 (intengo - 999 zamaRandi) kuwufanele imali, kodwa ikhasimende ngeke kudingeke ukuba anqume ukuthi esifanelana kuye engcono. Inketho f / 2.8 at usayizi izindleko EF 24-105 / 4L kungaba ephelele, kodwa umakhi has yokukhanya esinjalo asisho ukuthi akudingeki.

sinqumo

Canon EF 24-105mm / f 4L IS USM - lens okuhle ngempela. Ngokusho abanikazi, kwi full-scale SLR digital amakhamera zoom yayo ububanzi ilungele jikelele-njongo yokukhanya, kuhlanganise nokusebenzisa kwayo i-namathafa ekumeni. I-lens engaciba at ebanzi beso ovulekile futhi ukhiqiza izithombe ezicacile futhi kuqiniswa of 3-nesibaya inyuka isivinini ovumelekile. Sula izithombe etholakala at kuze 3.1 imizuzwana 24 mm 1/12 isekhondi at 105 mm. Ngandlela-thile kunciphisa umbono ophelele wezindawo vignetting obonakalayo futhi ukuhlanekezela, ikakhulukazi 24 mm. Lokhu kungenziwa kalula ukulungiswa digital okuthunyelwe yezolimo, kodwa kungcono uma kunesidingo esinjalo. Uma lens "Canon" yasungulwa ukuze aqede vignetting futhi ukuhlanekezela, khona-ke cishe kwakuyoba olukhudlwana, usinde ezibizayo futhi ngabe isinciphile ubude ebalulekile. Uma kunjalo, khona-ke ebucayini kwabasiza.

Ngo nepolnoformatnyh DSLR amakhamera ebalulekile ubude lens Canon 24-105 / 4L okulingana 38-168 mm Uhlaka esigcwele ikhamera, ukuze umsebenzisi ulahlekelwa Ukusabalala ububanzi. Nokho, ikhwalithi yesithombe kuphezulu kakhulu, njengoba emaphethelweni namakhona ifremu, lapho vignetting futhi wayephazamisekile izimfanelo kuthiwa ushayiwe. Uma uphethe lens Canon EF 24-105 abhanqiwe nge 10-22 / 3.5-4.5, izonikeza Ukusabalala 10-105 mm.