Cov txheej txheem:

Cov khoom siv lo ntsiab muag puas zoo?
Cov khoom siv lo ntsiab muag puas zoo?

Video: Cov khoom siv lo ntsiab muag puas zoo?

Video: Cov khoom siv lo ntsiab muag puas zoo?
Video: Npau Suav li no Txhob coj mus tham qhia luag lwm tus 2024, Kaum ib hlis
Anonim

Cov khoom siv lo ntsiab muag muaj txiaj ntsig zoo thiab ntau yam-tab sis lawv muaj lawv cov kev txwv, thiab nws tseem ceeb kom paub tias cov ntawd yog dab tsi. Tsawg suab nrov txo, tsawg ntse, me me rau tsis muaj bokeh, qeeb autofocus, thiab tsis muaj zog-lub teeb muaj peev xwm yog qee qhov teeb meem ib txwm xav tau nyob rau hauv feem ntau niaj hnub pib. lo ntsiab muag.

Tsis tas li ntawd, puas yog 18 55mm lens zoo txaus?

Nws yog ib heev zoo koob yees duab thiab ib tug dlej lens . Qhov zoo ntawm cov 18 - 105 hli 18 - 55 isit tso cai rau koj mus "zoom hauv" ntau yam tsis tau txav koj txhais taw. Etherone yuav ua haujlwm nrhiav haujlwm ntawm kev txhaj tshuaj toj roob hauv pes, txij li cov no yuav ua tiav ntawm qhov kawg (ze dua rau 18 hli tshaj 55mm ua ).

Ib tug kuj nug, yog 50 hli lens zoo dua 18 55mm? Qhov max aperture ntawm koj 18 - 55mm lens ntawm 50 mm yog f/5.6, uas yog nyob rau 50 hli max aperture yog / 1.8 . Tom qab ntawd lens tso cai ntau lub teeb (kwv yees li 10x) tshaj koj 18 - 55mm lens uas yog qhov zoo tagnrho rau cov teeb pom kev tsawg. Koj cov duab yuav ua kom pom tseeb dua tshaj ib txwm nrog 50 mml.

Tsis tas li ntawd, qhov txawv ntawm cov khoom siv lens thiab prime lens yog dab tsi?

Cov qhov sib txawv ntawm a kit & ib thawj yog a thawj yog qhov ntev ntev (lub ntsiab lus nozoom) thiab feem ntau muaj qhov siab tshaj plaws aperture (me me # zoo li 1.8). A kit lens yog zoom lens (feem ntau 18-55 hli ) thiab muaj qhov hloov pauv siab tshaj plaws aperture (3-5.6 nyob ntawm koj qhov focalength).

Yuav ua li cas koj plam tom qab nrog 18 55mm lens?

Thiab ntawm no yog qhov ua kom yuam kev

  1. Txuas lub lens tag nrho mus rau 55mm.
  2. Khaws qhov deb zoo ntawm qhov kev kawm thiab txhua yam hauv qab.
  3. Nqa cov aperture kom tsawg li tsawg tau. Ntawm 55mm, qhov siab tshaj plaws koj tuaj yeem qhib tau yog f / 5.6.
  4. Sau koj txhaj tshuaj, tsom ntsoov rau lub qhov muag ntawm koj cov ntsiab lus thiab nyem.

Pom zoo: