Matanthauzo ndi kusiyanitsa pakati pa kutalika kwa mandala, mtunda wokhazikika kumbuyo, ndi mtunda wa flange ndi motere:
Kutalika Kwambiri:Kutalika kwapakatikati ndi gawo lofunikira kwambiri pakujambula ndi kuyang'ana komwe kumatanthawuza mtunda wochokera pakati pa magalasi kupita kumalo ojambulira (ie, ndege ya sensa ya kamera), yomwe imayesedwa mu mamilimita. Kuyeza uku kumagwira ntchito yofunika kwambiri pozindikira momwe magalasi amawonera komanso mawonekedwe ake. Magalasi okhala ndi kutalika kosiyanasiyana amakwaniritsa zosowa ndi zochitika zosiyanasiyana. Mwachitsanzo, magalasi okhala ndi utali wotalikirapo, womwe nthawi zambiri umatchedwa ma lens atali-angle, ndi abwino kujambula zithunzi zokulirapo monga zomanga kapena malo akulu akulu. Ma lens awa amapereka mawonekedwe ochulukirapo, zomwe zimalola ojambula kuti aziphatikiza zinthu zambiri mkati mwa chimango. Kumbali ina, kutalika kokhazikika, monga 50 mm, ndi kosunthika komanso koyenera kujambula zithunzi. Amatsanzira kwambiri momwe maso aumunthu amawonera, zomwe zimawapangitsa kukhala zosankha zabwino kwambiri pazithunzi, kujambula mumsewu, komanso kujambula tsiku lililonse. Mosiyana ndi izi, ma lens atalitali, omwe amadziwika kuti ma telephoto lens, amapangidwira mitu yakutali. Magalasi awa amapondereza mtunda womwe ukuganiziridwa pakati pa zinthu, kuwapangitsa kukhala oyenera kujambula nyama zakuthengo, zochitika zamasewera, kapena mutu uliwonse womwe uli kutali ndi wojambula.
Ndikoyenera kudziwa kuti kutalika kwapakati sikumangokhudza gawo la mawonedwe komanso kumakhudza kuya kwa munda ndi kusokoneza fano. Kutalikirana kofupikitsa kumapangitsa zithunzi zokhala ndi kuzama kwakukulu kwamunda ndi kupsinjika pang'ono, pomwe kutalika kwapang'onopang'ono kumapangitsa kuti munda ukhale wozama komanso zotulukapo zomveka bwino. Kumvetsetsa izi kumapangitsa ojambula kuti asankhe mandala oyenerera pamasomphenya awo enieni.
Back Focal Distance (BFD): Mtunda wakumbuyo wakumbuyo, womwe umadziwikanso kuti utali wolunjika kumbuyo, umayesa mtunda kuchokera kumbuyo kwa chinthu chomaliza cha lens kupita ku ndege yojambula (ie, ndege ya sensor ya kamera). Izi ndizofunika kwambiri pamapangidwe ndi magwiridwe antchito a mandala chifukwa zimakhudza mwachindunji mawonekedwe amkati ndi mawonekedwe ake. Kutengera utali wokhazikika komanso momwe magalasi amagwiritsidwira ntchito, mtunda wakumbuyo ukhoza kusiyana kwambiri. Mwachitsanzo, ma lens amakona akulu nthawi zambiri amakhala ndi mtunda waufupi wakumbuyo chifukwa cha kapangidwe kake ka kuwala, komwe kumaphatikizapo kupindika kunyezimira kokulirapo kuti akwaniritse mawonekedwe ambiri. Mosiyana ndi izi, magalasi a telephoto amafunikira mtunda wautali wobwerera kumbuyo kuti agwirizane ndi mawonekedwe awo ovuta, omwe amaphatikiza zinthu zingapo zamagalasi kuti achepetse kusokonekera ndikuwonetsetsa kuthwa kwa chimango chonsecho.
Mtunda wakumbuyo wakumbuyo umatsimikiziranso malo omwe alipo kuti muyike zina zowonjezera mkati mwa mandala, monga ma diaphragms, zosefera, kapena njira zokhazikika. Magalasi opangidwa bwino ayenera kulinganiza mtunda wakumbuyo wakumbuyo ndi zinthu zina monga kulemera, kukula, ndi mtengo kuti apereke magwiridwe antchito abwino. Kuphatikiza apo, mtunda wakumbuyo wakumbuyo umagwira ntchito yofunika kwambiri pakuwonetsetsa kuti magalasi ndi matupi a kamera azitha kugwiritsa ntchito, makamaka mukamagwiritsa ntchito ma adapter apadera kapena zida zina.
Mtunda wa Flange:Mtunda wa flange ndi gawo lina lofunikira pakujambula lomwe limayimira mtunda kuchokera kumtunda kwa mawonekedwe a lens mount (ie, malo olumikizana pakati pa mandala ndi thupi la kamera) kupita ku ndege ya sensa ya kamera. Muyezo uwu ndi wofunikira kwambiri kuti musunge kulumikizana koyenera pakati pa mandala ndi sensa yojambulira, kuwonetsetsa kuyang'ana kolondola komanso chakuthwa pazithunzi zojambulidwa. M'kati mwa makina okwera omwewo, thupi la kamera ndi mandala amagawana mtunda wofanana wa flange, kutsimikizira kusakanikirana kosasunthika komanso kugwira ntchito bwino. Komabe, makina osiyanasiyana okwera amatha kukhala ndi mtunda wosiyanasiyana wa flange, womwe ungayambitse zovuta poyesa kugwiritsa ntchito magalasi opangidwira dongosolo limodzi pamakina a kamera kuchokera kudongosolo lina.
Makamera amakono, makamaka makamera opanda magalasi, nthawi zambiri amakhala ndi mtunda waufupi poyerekeza ndi ma DSLR achikhalidwe. Kusankha kamangidwe kameneka kamapereka maubwino angapo, kuphatikiza kuthekera kopanga magalasi ang'onoang'ono, opepuka komanso magwiridwe antchito owoneka bwino poyika ma lens pafupi ndi sensa. Kuphatikiza apo, makamera opanda magalasi okhala ndi mtunda waufupi wa flange amatha kukhala ndi magalasi okhala ndi mtunda wautali wa flange pogwiritsa ntchito mphete za adaputala. Ma adapter awa amalola ojambula kuti agwiritse ntchito ma lens osiyanasiyana, kukulitsa kuthekera kwawo kopanga ndikupereka mwayi wowoneka bwino womwe mwina sangapezeke mumagalasi amakono.
Kusiyana ndi Kugwirizana Pakati Pazo:
Tanthauzo ndi Kusiyanitsa kwa Point Point: Iliyonse mwa magawo awa imayesa mtunda wosiyana wokhudzana ndi mandala ndi makina a kamera. Kutalika kwapakati kumayesa mtunda kuchokera pakati pa kuwala kwa lens kupita ku ndege yojambula, kuyimira choyambirira.
Nthawi yotumiza: Apr-21-2025