Cov khoom
| Qauv | CH3671A | |||
| Hom | Lub Hnub Qub Lens | Mob txheeb ze. | — | |
| Kev daws teeb meem | 3MP | Tus Thawj Coj Ray Angle | — | |
| Hom Duab | 1/2.7″ | MOD | 0.5m~∞ | |
| Duab Lub Voj Voog | ф6.8mm (MAX) | Hom Mount | M16 * P0.5 | |
| EFL | 4 hli | Daim Duab Loj | ф20.00 * L31.40mm | |
| TTL | 38.3 hli | Cov Qauv Lens | — | |
| F/TSIS MUAJ. | 1.0 | IR-Lim | Tsis yog IR | |
| FFL（M) | 6.90 hli | Qhov hnyav | 16.0g | |
| BFL（O) | — | Kev Ua Haujlwm Iris | Kho tas lawm | |
| Rau Sensor | 1/2.7″ | Kev Ua Haujlwm Zoom | Kho tas lawm | |
| FOV | Kab rov tav | 91.5° | Kev Ua Haujlwm Kom Pom Tseeb | Phau Ntawv Qhia |
| Ntsug | 47° | Kub Ua Haujlwm | -20°~+85° | |
| Kab pheeb ces kaum | 112° | Kub Cia Khoom | -20°~+85° | |
| Kev cuam tshuam OPT | <-45% | |||
Cov khoom no tau ntxiv rau hauv lub laub lawm!
Cov iav hnub qub
Cov khoom
Cov Khoom Qhia Txog Khoom
Cov Cim Npe Khoom
| Qauv | Hom Ntawv Sensor | Qhov Ntev Focal (hli) | FOV (H*V*D) | TTL (hli) | IR Lim | Qhov qhib | Mount | Nqe Ib Chav | ||
|---|---|---|---|---|---|---|---|---|---|---|
| NTAU+TSIS TXAUS- | CH3671A | 1/2.7" | 4.0 | 91.5°*47°*112° | 38.3 | NO | 1.0 | M16 * P0.5 | $5.0Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3672A | 1/2.7" | 6.0 | 61°*33°*74° | 41.10 | NO | 1.0 | M16 * P0.5 | $5.0Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3673A | 1/2.5" | 4.0 | 90°*49°*106° | 35.75 | NO | 1.0 | M16 * P0.5 | $6.0Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3674A | 1/1.8" | 5.4 | 88°*46°*105° | 45.47 | NO | 1.0 | M16 * P0.5 | $6.5Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3818A | 1/2.7" | 6.0 | 61°*32°*72° | 22.80 | NO | 1.6 | M12 * P0.5 | $2.0Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3818B | 1/2.7" | 6.0 | 61°*32°*72° | 22.80 | NO | 1.6 | AA Ø14.0 | $2.0Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3543A | 1/2.7" | 2.9 | 117°*62°*141° | 21.94 | NO | 1.4 | M12 * P0.5 | $6.7Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3824A | 1/2.7" | 4.0 | 90°*49°*106º | 22.37 | NO | 1.4 | M12 * P0.5 | $1.5Thov Kev Hais Nqe | |
| NTAU+TSIS TXAUS- | CH3825A | 1/2.7" | 6.0 | 58°*31.5°*67° | 22.43 | NO | 1.4 | M12 * P0.5 | $1.5Thov Kev Hais Nqe | |
Cov koob yees duab Starlight yog ib hom koob yees duab saib xyuas uas tsim los thaij cov duab meej meej hauv qhov chaw uas muaj teeb pom kev zoo tsawg heev. Cov koob yees duab no siv cov cuab yeej ntsuas duab siab heev thiab kev ua cov teeb liab digital los thaij thiab txhim kho cov duab hauv cov chaw uas cov koob yees duab ib txwm muaj teeb meem.
Cov iav tsom iav rau lub koob yees duab hnub qub yog cov iav tsom iav tshwj xeeb uas tsim los thaij duab thaum muaj teeb pom kev tsawg, suav nrog thaum hmo ntuj thiab thaum muaj teeb pom kev tsawg heev. Cov iav tsom iav no feem ntau muaj qhov qhib dav thiab qhov loj ntawm lub sensor duab kom ntes tau lub teeb ntau dua, ua rau lub koob yees duab tsim tau cov duab zoo hauv cov teeb pom kev tsawg.
Muaj ob peb yam tseem ceeb uas yuav tsum xav txog thaum xaiv cov lens rau lub koob yees duab starlight. Ib qho tseem ceeb tshaj plaws yog qhov loj ntawm qhov aperture, uas ntsuas hauv f-stops. Cov lens uas muaj qhov aperture loj dua (cov lej f me dua) tso cai rau lub teeb ntau dua nkag mus rau hauv lub koob yees duab, ua rau cov duab ci dua thiab ua haujlwm tau zoo dua thaum tsis muaj teeb.
Lwm yam tseem ceeb uas yuav tsum xav txog yog qhov ntev ntawm lub lens, uas txiav txim siab lub kaum sab xis ntawm kev pom thiab kev loj hlob ntawm daim duab. Cov iav hnub qub feem ntau muaj lub kaum sab xis dav dua los ntes tau ntau dua ntawm lub ntuj hmo ntuj lossis cov xwm txheej tsaus ntuj.
Lwm yam uas yuav tsum xav txog suav nrog qhov zoo ntawm lub lens, qhov zoo ntawm kev tsim kho, thiab kev sib haum xeeb nrog lub cev lub koob yees duab. Qee lub npe nrov ntawm cov iav koob yees duab hnub qub suav nrog Sony, Canon, Nikon, thiab Sigma.
Zuag qhia tag nrho, thaum xaiv cov iav rau lub koob yees duab starlight, nws yog ib qho tseem ceeb uas yuav tsum xav txog koj cov kev xav tau thiab cov kev cai tshwj xeeb, nrog rau koj cov peev nyiaj, kom nrhiav tau lub iav zoo tshaj plaws rau koj daim ntawv thov tshwj xeeb.
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