Ubunzulu bentsimi: Isifundo esibonakalayo

Kwiposti yanamhlanje ndabelana ngemizekelo ebonakalayo yobunzulu bentsimi kusetyenziswa iRussia Matryoshka Nesting Dolls. Ngale mizekelo ungabona ngcono ukuba kwenzeka ntoni kwiindawo ezahlukeneyo zokuvula kunye nokusebenzisa iindawo ezahlukeneyo ekugxilwe kuzo xa kudutyulwa ngobunzulu bentsimi (DOF).

Iinkcukacha ezimbalwa:

• Le mifanekiso ayilungiswanga, ngaphandle kokubhaliweyo emazantsi omfanekiso kunye noseto, kunye nefayile ye- lola i-Photoshop yewebhu ukusuka kwi-MCP Fusion.
• Ezi foto zathathwa kunye Ikhamera yeOlimpus Micro ezine-Thirds OM-D EM-5 kunye a IPanasonic 25mm 1.4 Lens. Oku kusebenza ngokukuko kwe-25mm (ngamagama angama-35mm) ngama-50mm, njengoko ezi khamera zinesenzi esine-2x. Ke… ngesiNgesi kwabo baqala ngaphandle, bubude obulinganayo obufanayo nobungu-50mm kumzimba osisakhelo esigcweleyo, njengam ICanon 5D MKIII. Ngenxa yesityalo ubunzulu bentsimi abunabunzulu bungako kwiCanon yam. Kodwa njengoko uza kubona apha, usenokufumana umbono omkhulu wokuba la manani ayichaphazela njani ifoto.
• Le ngcinga yeza kum ebusuku. Kwakungekho ukukhanya kwendalo kwaye ngenxa yoko bendifuna i-ISO ephezulu, enokongeza iinkozo, okanye ixesha lokuvezwa ixesha elide. Kuba bendifuna ukuhlengahlengisa ukuvula kulo mboniso, nanjengoko bendinokusebenzisa umgangatho njenge "tripod" ndikhethe ukudubula yonke imifanekiso e-ISO200 ngokuveza ixesha elide.

Inqaku lokugxila ekutshintsheni-zonke iidoli kwindiza enye:

Xa udubula uvulekile ngokubanzi, elona nani lisezantsi lilensi yakho iya kuhamba (kule meko 1.4), unendawo emxinwa kakhulu yomfanekiso wakho oza kugxila. Njengoko ubona ngezantsi, oonodoli bajolise kumfanekiso wokuqala, njengoko bendigxile emehlweni onodoli ngasekhohlo. Zonke iidoli zazikwinqwelomoya efanayo kolu seto. Qaphela indlela imvelaphi iwela ekugxilwe kuyo kwaye idale ukufiphala okuhle. Qaphela ukuba umphambili osondeleyo kwikhamera yam uqala ukufumana ukukhanya kokukhanya. Oku kubizwa ngokuba bubunzulu bentsimi.

 

Ngokusetwa okufanayo, kunye nazo zonke iisetingi ezifanayo kwikhamera, ngoku ndijolise kwityathanga elingasemva. Iidoli ngoku zifiphele kodwa isitulo, udonga kunye neemfama kugxilwe.

Iidoli zigxadazile-amanqaku ekugxilwe kuwo atshintsha:

Iseti elandelayo yemifanekiso, ndagxadazela oonodoli ngee-intshi ezimbalwa ngokwahlukeneyo nakwidiagonal ukuze ubone ifuthe. Ukuqala ndigxile kunodoli ngasekhohlo. Ndibeka indawo ekugxilwe kuyo ngqo emehlweni akhe ngelixa e-af / stop ye-1.4. Ungasibona isitulo sikhutshiwe kwakhona, kodwa ukongeza zonke iidoli ngaphandle kwekhohlo zifiphele. Ukuya umva unodoli, kokukhona waba mfiliba.

Ngoku, ndiye ndahambisa ukugxila kwidoli yesibini ukusuka ngasekhohlo. Uyabona ukuba unodoli wangaphambili kunye nabanye oonodoli abathathu ababuya ngasemva bayafiphala.

Ngoku ndigxile kunodoli weziko. Kwakhona ungayibona indlela ngaphambili (ngasekhohlo) nangasemva ezimbini (ngasekunene) kunye nemvelaphi zonke zingacacanga.

 

Kwaye ngokulandelayo, u-4. Uyabona ukuba oonodoli abambalwa baphazamisekile. Kodwa, ngokungafaniyo nezinye, ngoku ngoku sijolise kude kakhulu kwikhamera, enye imeko iya kudlala. Ukusondela kwakho kwisifundo sakho akukho nzulu kwi-DOF. Okukhona ukude, kokukhona indawo ekugxilwe kuyo inkulu. Ngenxa yoko, nangona bendigxile kwi-4, eye-3 neye-5 zisajolise kwinxalenye ethile. Andizukuthi zibukhali, kodwa ayisiyongxaki enkulu.

 

Ngoku ngunodoli wesihlanu… oyena mncinci. Ingqondo efanayo naleyo ye-5, ubunzulu bentsimi buye bandiswa. Ukuba uyawathanda amanani amsulwa, unokufumana iitshathi ze-DOF kwi-Intanethi. Ndingumfundi obonakalayo kunye notitshala, ke hayi njenge "imathematika" njengoko itshathi inokuba njalo. Ngelixa ujonge le, jonga ukuba ikhaphethi ijikeleze njani unodoli wesihlanu.

Okokugqibela, ngonodoli abagxadazelayo, uyabona sigxile esihlalweni. Kanye njengakwiphepha apho oonodoli babekwinqwelo-moya enye, oonodoli abagxadazelayo basafiphele.

Ukulungele ukuqhubekeka? Okulandelayo, ukutshintsha i-DOF:

Ukuza kuthi ga ngoku yonke imifanekiso efotwe kwi-f / 1.4. Ngoku masiyitshintshe kancinci. Kwimifanekiso ezayo, indawo ekugxilwe kuyo ihleli kwamehlo wedoli yokuqala. Ezi nguqu zimbini kukuvula (f / ukumisa) kunye nesantya. Kutheni usitshintsha isantya? Ukuba andikhange ndibonakalise ukuba iya kubakho.

Ukuqala, nantsi umfanekiso kwi-f / 1.4-gxila kunodoli wasekhohlo.

Emva koko ndatshintshela kwi-f / stop ye-2.0. Ikufuphi kufutshane nefoto engentla, kodwa unodoli we-2 ucotha kancinci ukuba ajolise ngakumbi.

 

Ifoto elandelayo iku-2.8. Unodoli wesi-2 uya egxila ngakumbi… Kodwa hayi kakhulu. Gcina ukhumbula, indawo ekugxilwe kuyo kukwidoli ye-1.

Nanku ukuvula kwe-4.0. Ngoku, ngelixa ujonge le nto, qala ukuzibonisa ngokwakho uthatha ifoto yosapho okanye iqela elikhulu labantu. Ukuba bakwinqwelomoya enye, unganakho ukusebenzisa i-2.8 okanye i-4.0, kodwa ukuba iqela likhulu okanye limile kwiinqwelomoya ezininzi, uyakubona okuza kwenzeka. Jonga kwicala lasekunene koonodoli.

 

Ngenxa yesantya, siza kweqa ezinye "zokumisa." Okulandelayo kubonisiwe ku-f / 6.3. Unodoli wesibini usondele kakhulu ekujoliseni ngoku.

Ukutsiba ku-f / 11, kubonisiwe ngokulandelayo, unokubona ukuba usapho lonke loonodoli luphantse lwajolaphi. Khawufane ucinge usapho olukhulu okanye iqela… oku kunokuba yinto egqibeleleyo. Ukuba uyaqala ungazibuza, "kutheni ndizokudubula ngo-2.8 ukuba ndiyazi ukuba ndingagxila ngcono kwi-f / 11?" Nasi isizathu… Ukuba ufuna ukwahlula umxholo wakho ngasemva, kunzima kakhulu ukuba ume kumanani aphezulu f / eyeka njengo-11. Uyabona ukuba isitulo sicace gca njani? Ayinalo olo phuculo lomgangatho wangaphambili ovela ngasemva.

 

 

Ngamanye amaxesha kufuneka ukhethe okona kubalulekileyo. Ukukhetha ukuvula, isantya, kunye / okanye i-ISO. Kungenxa yoko le nto ukudubula kwimowudi yencwadana yemigaqo okanye yeendlela ezizenzekelayo kubalulekile, xa kuthelekiswa ne-AUTO, apho ithatha isigqibo ngekhamera. Ukongeza, ukuba uphosa ubanzi oluvulekileyo (njenge-1.4, 2.0, njl. ukunciphisa isantya (oko kunokukhokelela kwimbonakalo yentshukumo). Jonga ngezantsi kuseto. Kuba le yayiyimeko yokukhanya okuphantsi, kwaye ndifuna ukusebenzisa i-ISO200 ukuze ingqolowa ingangeni, kuye kwafuneka ndisebenzise ukubonakaliswa kwesibini kwe-20 ukudubula ngo-f16. Ukuba aba nodoli yayingabantu bokwenyani okanye ukuba ndandiphethe ngesandla, ngekhe ndikufezekise oku ekukhanyeni kwendalo kwaye izifundo zibukhali. Ayilothuba!

 

I-tripod inokuba luncedo ekuvezweni okude oku (okanye kumgangatho kule meko). Kodwa ukuba abantu bakuloo dubulo, hayi oonodoli okanye into engenakushukunyiswa, kuyakufuneka udubule ngokuvula ngokubanzi kwaye kunokwenzeka nakwi-ISO ephezulu. Bona eyethu Buyela kuLuhlu lweZiseko ukufunda okungakumbi malunga nendlela i-ISO, ukuvula, kunye nesantya konke okudala ngayo ” unxantathu obonakalisayo. Ndiyathemba ukuba olu jongo lubonakalayo kwiindawo eziluncedo lwaluncedo.

Enkosi!

Jodi