Hauv kev yees duab thiab kev ua yeeb yaj kiab, lub lens dav yog hais txog lub lens uas nws qhov focal ntev me dua li qhov focal ntev ntawm lub lens ib txwm rau lub dav hlau zaj duab xis.
Dab tsi yog qhov dav?
Ib lub lens yog suav tias yog lub kaum sab xis dav thaum nws npog lub kaum sab xis ntawm qhov pom ntawm 64 ° thiab 84 ° uas rov txhais mus rau 35-24mm lens hauv 35mm zaj duab xis hom.
Yog 35 hli lub kaum sab xis?
Ntawm lub koob yees duab puv npo, txhua lub lens nrog qhov ntev ntawm 35mm lossis dav dua yog suav tias yog lub kaum sab xis dav, thaum 24mm thiab dav dua yog suav tias yog lub kaum sab xis ultra-wide lens. … Piv txwv li, 35mm lens yuav muab rau koj qhov ntev ntawm 21.8mm ntawm Canon DSLR, lossis 23.3mm ntawm Nikon DSLR.
Yog 16 mm wide angle?
Raws li kuv tau hais, los ntawm cov ntsiab lus nrov, lub kaum sab xis dav txhais tau tias txhua yam hauv qab 35mm. … Focal ntev ntawm 35mm thiab 24mm yog suav tias yog lub kaum sab xis dav. Qhov nruab nrab ntawm 24mm txog 16mm yog qhov peb feem ntau xa mus rau thaum hais dav dav. Focal lengths hauv qab 16mm yog xav txog lub kaum ntse ntse.
Puas yog 18mm lub lens dav?
Lub kaum ntse ntse focal ntev uas koj tau teev tseg los ntawm Wikipedia yog qhov tseeb tiag tiag rau 35mm zaj duab xis thiab cov koob yees duab tag nrho cov koob yees duab, yog li, koj cov khoom siv lo ntsiab muag yog suav tias yog lub kaum sab xis ntawm 18mm kawg (qhov sib npaug ntawm kwv yees li 28mm "tus qauv" dav lub lens).
