Ingabe Amalensi Ezimboni Angasetshenziswa Njengamalensi E-SLR? Yimaphi Amapharamitha Okufanele Siwaqaphele Lapho Sikhetha Amalensi Ezimboni?

1,Ingabe amalensi ezimboni angasetshenziswa njengamalensi e-SLR?

Imiklamo kanye nokusetshenziswa kweamalensi ezimboninamalensi e-SLR ahlukile. Nakuba womabili angamalensi, indlela asebenza ngayo kanye nezimo asetshenziswa kuzo zizohluka. Uma usemkhakheni wokukhiqiza wezimboni, kunconywa ukuthi usebenzise amalensi akhethekile ezimboni; uma wenza umsebenzi wokuthwebula izithombe, kunconywa ukuthi usebenzise amalensi ekhamera ochwepheshe.

Amalensi ezimboni aklanywe ngokugxila ekunembeni, ukuqina, kanye nokuzinza, ikakhulukazi ukuhlangabezana nezidingo zokukhiqiza kanye nezinye izinhlelo zokusebenza zobungcweti, njengokusetshenziswa okuqondile ezenzakalelayo, ukuqapha, ucwaningo lwezokwelapha, nokuningi.

Umklamo wamalensi e-SLR udinga kakhulu ukucabangela ukusebenza kwe-optical, ukuvezwa kobuciko kanye nolwazi lomsebenzisi, njll., ukuze kuhlangatshezwane nezidingo zabathwebuli bezithombe zekhwalithi yesithombe kanye nokusebenza okusha.

Nakuba kungenzeka ngobuchwepheshe ukufaka ilensi yezimboni kukhamera ye-SLR (uma nje isikhombikubona sihambisana), imiphumela yokudubula ingase ingabi mihle. Amalensi ezimboni angase anganikezi ikhwalithi yesithombe noma ukusebenza okuhle kakhulu, futhi angase angasebenzi nohlelo lwekhamera yakho lokuziveza ngokuzenzakalelayo noma lokugxila ngokuzenzakalelayo.

Ikhamera ye-SLR

Ngezidingo ezithile ezikhethekile zokuthwebula izithombe, njengezithombe ezincane eziseduze, kungenzeka ukufakaamalensi ezimbonikumakhamera e-SLR, kodwa lokhu ngokuvamile kudinga imishini yokusekela yobungcweti kanye nolwazi lobungcweti ukuze kusekelwe ukuqedwa.

2,Yiziphi izilinganiso okufanele siziqaphele lapho sikhetha amalensi ezimboni?

Uma ukhetha ilensi yezimboni, udinga ukucabangela izinhlobo ezahlukene zamapharamitha. Amapharamitha alandelayo ngokuvamile agxile kakhulu:

Ubude be-focal:

Ubude obuqondile bunquma insimu yokubuka kanye nokukhulisa ilensi. Ubude obuqondile obude buhlinzeka ngokubuka kanye nokukhulisa ibanga elide, kanti ubude obuqondile obufushane buhlinzeka ngensimu ebanzi yokubuka. Ngokuvamile kunconywa ukukhetha ubude obuqondile obufanele ngokusekelwe ezidingweni zezimo ezithile zohlelo lokusebenza.

Imbobo:

Imbobo inquma inani lokukhanya okudluliselwa ngelensi futhi ithinta nokucaca nokujula kwesithombe. Imbobo ebanzi ivumela ukuvezwa okungcono kanye nekhwalithi yesithombe ezimweni zokukhanya okuphansi. Uma ukukhanya kwendawo oyithwebulayo kubuthakathaka, kunconywa ukuthi ukhethe ilensi enembobo enkulu.

Isixazululo:

Ukulungiswa kwelensi kunquma imininingwane yesithombe engayithwebula, kanye nokulungiswa okuphezulu okunikeza izithombe ezicacile nezinemininingwane eminingi. Uma unezidingo eziphakeme zokucaca kwezithombe ezithwetshuliwe, kunconywa ukuthi ukhethe ilensi enesinqumo esiphezulu.

Ilensi yezimboni

Inkundla yokubuka:

Insimu yokubuka ibhekisela kububanzi bezinto ezingambozwa ilensi, ngokuvamile ezivezwa ngama-engeli avundlile naqondile. Ukukhetha insimu yokubuka efanele kuqinisekisa ukuthi ilensi ingakwazi ukuthwebula ububanzi besithombe obufunwayo.

Uhlobo lwesixhumi esibonakalayo:

Uhlobo lwesixhumi esibonakalayo selensi kufanele lufane nekhamera noma imishini esetshenzisiwe.ilensi yezimboniIzinhlobo zesixhumi esibonakalayo zifaka phakathi i-C-mount, i-CS-mount, i-F-mount, njll.

Ukuhlanekezela:

Ukuhlanekezela kubhekisela ekuhlanekezeleni okulethwa ilensi lapho ithwebula into entweni ezwela ukukhanya. Ngokuvamile, amalensi ezimboni anezidingo eziphakeme zokuhlanekezela. Ukukhetha ilensi enokuhlanekezela okuphansi kungaqinisekisa ukunemba nokunemba kwesithombe.

Ikhwalithi yelensi:

Ikhwalithi yelensi ithinta ngqo ukucaca kanye nokukhiqizwa kabusha kombala wesithombe. Uma ukhetha ilensi, udinga ukuqinisekisa ukuthi ukhetha uhlobo lwelensi olusezingeni eliphezulu kanye nomodeli.

Ezinye izidingo ezikhethekile: Uma ukhetha amalensi ezimboni, udinga futhi ukucabangela ukuthi indawo esetshenziswa kuyo inezidingo ezikhethekile yini zelensi, njengokuthi ingabe ayinamanzi, ayingenwa uthuli, futhi imelana nokushisa okuphezulu.

Imicabango Yokugcina:

UChuangAn wenze umklamo wokuqala kanye nokukhiqizwa kwamalensi ezimboni, asetshenziswa kuzo zonke izici zezicelo zezimboni. Uma unentshisekelo noma unesidingo sawoamalensi ezimboni, sicela usithinte ngokushesha okukhulu.