Full Frame vs Crop Sensor
Lub sensor yog ib qho tseem ceeb tshaj plaws ntawm lub koob yees duab. Crop sensor koob yees duab thiab cov koob yees duab puv yog ob hom koob yees duab uas tau muab cais raws li qhov loj ntawm lub sensor. Lub koob yees duab tag nrho muaj lub sensor uas zoo ib yam li 35 mm zaj duab xis sensing cheeb tsam. Lub koob yees duab cog qoob loo muaj ib lub sensor uas me dua li lub koob yees duab tag nrho. Ob qho tib si ntawm cov koob yees duab no muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Nws yog ib qho tseem ceeb kom muaj kev nkag siab zoo hauv cov qoob loo sensor thiab cov koob yees duab tag nrho kom thiaj li ua tau zoo hauv kev yees duab. Nyob rau hauv tsab xov xwm no, peb yuav tham txog dab tsi yog tag nrho cov koob yees duab thiab qoob loo sensor lub koob yees duab, lawv qhov zoo thiab qhov tsis zoo, cov qoob loo ntawm ob hom sensor, lawv qhov sib xws, thiab thaum kawg qhov sib txawv ntawm cov qoob loo sensor thiab cov koob yees duab puv.
Lub koob yees duab puv npo
Lub koob yees duab puv npo yog hom DSLR lub koob yees duab nrog tus ncej loj ntawm tus qauv 35 hli zaj duab xis. Yuav kom nkag siab txog qhov zoo ntawm lub koob yees duab tag nrho, ib qho yuav tsum xub muaj kev nkag siab yooj yim ntawm lub koob yees duab DSLR. Qhov kev daws teeb meem ntawm lub sensor nyob ntawm tus naj npawb ntawm cov ntsiab lus hauv lub sensor. Yog tias tib yam ntawm cov ntsiab lus ntawm cov khoom sib kis tau kis mus rau qhov dav dav, lub suab nrov yuav qis, thiab kev daws teeb meem thiab qhov ntse yuav siab dua qhov ntsuas me me.
A tag nrho cov ncej sensor yog qhov loj ntawm 36 mm x 24 mm. Rau lub lens ntawm tib lub focal ntev, lub koob yees duab tag nrho muab lub kaum sab xis pom dua li lub koob yees duab ib txwm. Cov nyhuv no txhais tau hais tias lub angular distortion vim siv lub kaum sab xis dav yog txo qis los ntawm kev siv lub koob yees duab tag nrho. Lub koob yees duab tag nrho kuj tseem muab qhov tob me me ntawm thaj teb piv rau lub koob yees duab qoob loo tau teeb tsa kom haum rau tib qho chaw thiab thaj chaw saib.
Crop Sensor koob yees duab
Lub koob yees duab qoob loo yog ib hom koob yees duab uas siv lub sensor me dua li tus qauv 35 hli zaj duab xis loj. Feem ntau cov koob yees duab siv lub sensor loj hu ua APS-C. APS-C sensor loj rau Nikon, Pentax, thiab Sony koob yees duab yog ntsuas li 23.6 hli x 15.7 hli, thiab APS-C sensor loj rau Canon koob yees duab yog ntsuas li 22.2 hli x 14.8 hli. Tsis tas li ntawd, muaj cov tshuab xws li plaub qhov thib peb thiab Foveon system, uas siv qhov ntsuas me me dua li APS-C sensors. Qhov me me ntawm qhov ntsuas qhov ntsuas yuav muab qhov tob ntawm qhov muaj nuj nqis ntau dua.
Tus qauv txheej txheem piav qhia txog cov qoob loo sensor loj yog cov qoob loo uas tau muab los ntawm qhov piv ntawm kab pheeb ces kaum ntawm cov qoob loo sensor mus rau kab pheeb ces kaum ntawm tag nrho cov ncej sensor.
Dab tsi yog qhov txawv ntawm Full Frame thiab Crop Sensor Lub Koob Yees Duab?
• Cov koob yees duab tag nrho yog ib txwm kim dua li cov koob yees duab cog qoob loo.
• Cov duab zoo thiab ntse ntawm cov koob yees duab puv yog siab dua cov koob yees duab qoob loo.
• Lub thav duab puv sensor loj dua li cov qoob loo sensor.
