Designations alphabetic cim rau lub lens Canon

Cia peb kawm saib ua li cas tag nrho cov tsiaj ntawv thiab ua zauv rau cov lo ntsiab muag. Qhov no yuav pab tau nyob rau hauv lub neej yav tom ntej thaum xaiv ib tug tshiab lens.

L - qhia peb ntawm lub lens teej tug mus rau ib tug ntau ntawm kev lo ntsiab muag Canon Khoom kim heev. Tej lo ntsiab muag yuav tsum muaj nyob rau hauv lub arsenal ntawm kev kab tshoob thiab tsev neeg tej duab.

EF - qhia rau peb txog qhov zoo ntawm lub lens mount rau lub koob yees duab los yog lub lens mount, raws li lawv hais cov tub txawg.

EF-S - tsis tau lwm saib ntawm lub lens mount. Feem ntau qhov no hom ntawm mounting yog pom nyob rau hauv cov koob yees duab muaj ib tug me me tshaj full-matrix (kropnutyh) - pib xyaum ua los yog semi-specular kab canon koob yees duab. EF-S lo ntsiab muag yog tsis haum rau cov koob yees duab-mount EF.

USM (Utlrasonic Tsav) - hais tias lub lens yog kev ultrasonic ua kom pom tseeb lub cev muaj zog (lub cev muaj zog). Cov lo ntsiab muag khiav lag luam twj ywm, thiab tau nce lub ceev thiab raug ntawm kev xav ntsoov txog. Pab kab tshoob thiab tsev neeg yees duab kom sai ntes thiab pom tseeb rau koj kev kawm, seb nws yog tus nkauj nyab cuam lub pob paj los yog ua si tus me nyuam.

YOG (Duab Stabilizer) - yog txawm peem rau nrog ib tug optical lens system ntawm cov duab stabilization. Nws tso cai rau koj mus tua handheld ntawm ntev shutter speeds. Tab sis tsis txhob cia siab tias ntau npaum li cas nyob rau hauv no feature, thiab nws yog zoo dua rau siv ib lub kos yog tias tsim nyog.

UA (Diffractive Optical hais) - diffractive kho qhov muag ntsiab siv nyob rau hauv lub kho qhov muag lens qauv. Qhov no thiaj li qhov nyhav thiab qhov luaj li cas ntawm lub lens, tsis muaj tsis kho qhov muag zoo.

(Tilt-ua haujlwm) - tshwj xeeb lens nrog kho lus foundations vim lub qaij thiab ua haujlwm ntawm tus kho qhov muag los ua ke.

FT-M - Full Time txhais tes - lo ntsiab muag nrog rau qhov phau ntawv fokusirvkoy.

I / R - Internal kom pom tseeb Tsheb kom pom tseeb - nrog tsom iav los yog ntawm lub rear lens pab pawg neeg (nrog rau uas tsis yog-yam pem hauv ntej lens)

S-UD - hais tias lub hom phiaj lens yog ua los ntawm S-UD iav

AL - Aspherical lo ntsiab muag

CA (Vas Aperture) - ib tug yeej aperture.