一,Mhando dzeSecurity Camera Lenses:
Chengetedzo kamera lenses inouya mumhando dzakasiyana, imwe neimwe yakagadzirirwa kuti ikwane chaiyo yekutarisa zvinodiwa. Kunzwisisa marudzi emalenzi anowanikwa anogona kukubatsira kusarudza iyo yakakodzera yekuseta kamera yako yekuchengetedza. Heano mhando dzakawanda dzekuchengetedza kamera lenses:
1,Fixed Lens: Lens yakagadziriswa ine imwe chete yakatarisa kureba uye munda wekuona, iyo isingagoni kugadziriswa. Iyo inodhura-inoshanda sarudzo yakakodzera kutarisa imwe nzvimbo pasina kudikanwa kwekugadziriswa nguva nenguva. Fixed lenses anowanikwa muhurefu hwakasiyana hwakareba, achikubvumidza iwe kusarudza iyo yaunoda ndima yekuona.
2,Varifocal Lens: A varifocal lens inopa inogadziriswa yakatarisa kureba, ichikubvumira kuti uchinje munda wekuona nemaoko. Inopa kuchinjika mukugadzirisa iyo zoom level uye yakanakira mamiriro ezvinhu apo nzvimbo yekutarisa inogona kuchinja kana kuda mazinga akasiyana eruzivo. Varifocal lenses anowanzo shandiswa mumamiriro ezvinhu anodiwa kuita zvakasiyana-siyana, sekutarisa kunze.
3,Zoom Lens:Iyo zoom lens inopa kugona kugadzirisa kureba kwekutarisa uye ndima yekuona kure. Iyo inobvumira kune ese ari maviri optical zoom uye digital zoom. Optical zoom inochengetedza kunaka kwemufananidzo nekugadzirisa zvinhu zvelens, ukuwo digital zoom ichikudza mufananidzo nedigital, zvichikonzera kurasikirwa kwemhando yemufananidzo. Zoom lenses anowanzo shandiswa mumashandisirwo uko kutarisisa kure uye kugona kubata zvakanaka kwakakosha, senge munzvimbo huru dzemukati kana dzekunze.
4,Wide-Angle Lens: A wide-angle lens ane hurefu hwefocal hurefu, zvichiita kuti pave nenzvimbo yakafara yekuona. Inokodzera kutarisa nzvimbo dzakakura kana nzvimbo dzakavhurika uko kutora maonero akasiyana kwakakosha. Wide-angle lenses anowanzo shandiswa mukutarisa mamiriro senge nzvimbo dzekupaka, matura, kana yekunze perimeter yekutarisa.
5,Telephoto Lens: Telephoto lens ine kureba kwekutarisa kureba, ichipa yakamanikana yekuona uye kukudza kukuru. Yakanakira kutarisisa kwenguva refu kana mamiriro apo kutora chaiwo ruzivo kubva kure kwakakosha. Telephoto lenses anowanzo shandiswa kune zvikumbiro senge rezinesi rekuziva plate, kuzivikanwa kwechiso, kana kutarisa zvakakosha kubva kure.
6,Pinhole Lens:A pinhole lens inyanzvi lens idiki zvakanyanya uye yakangwara. Yakagadzirirwa kuvanzwa mukati mezvinhu kana pamusoro, ichibvumira kuongororwa kwepachivande. Pinhole lenses anowanzo shandiswa mumamiriro ezvinhu apo kamera inoda kuvanzwa kana hungwaru, senge mumaATM, maburi emusuwo, kana pakavanda yekutarisa mashandiro.
二,Maitiro ekusarudza iyo Yakanakisa Lens Yeko Chengetedzo Kamera?
Kusarudza iyo yakanakisa lens kune yako yekuchengetedza kamera inhanho yakakosha mukuona kwakaringana kuita uye kutora emhando yepamusoro vhidhiyo. Heano zvimwe zvinhu zvekufunga nezvazvo pakusarudza lens:
Mhando yekamera:Sarudza rudzi rwekuchengetedza kamera yaunayo kana kuronga kutenga. Mhando dzekamera dzakasiyana, senge bullet, dome, kana PTZ (pan-tilt-zoom), inogona kuda chaiwo malenzi mhando kana saizi.
Focal Length: Kureba kwekutarisa kunotemesa ndima yekuona uye nhanho ye zoom. Inopimwa nemamirimita (mm). Sarudza urefu hwekutarisa hunoenderana nezvido zvako. Hedzino dzimwe sarudzo dzakajairika:
Wide-Angle Lens(2.8mm kusvika 8mm): Inopa nzvimbo yakafara yekuona, yakakodzera kuvhara nzvimbo dzakakura kana kutarisa nzvimbo dzakafara.
Standard Lens (8mm kusvika 12mm): Inopa maonero ari pakati nepakati akakodzera kune zvakajairwa kuongorora zvikumbiro.
Telephoto Lens (12mm uye pamusoro): Inopa nzvimbo yakamanikana yekutarisa asi inopa yakakura zoom kugona kwekutarisa-refu-refu yekutarisa kana yakadzama yepedyo-ups.
Munda Wekuona (FOV): Funga nezvenzvimbo yaunoda kutarisa uye nhanho yeruzivo rwunodiwa. Nzvimbo yakafara yekuona inobatsira kunzvimbo huru dzakavhurika, nepo FOV yakamanikana iri nani kune dzakananga nzvimbo dzinoda kunyatsotariswa.
Aperture: Iyo aperture inosarudza kugona kwekuunganidza mwenje kwelenzi. Inomiririrwa nef-nhamba (semuenzaniso, f/1.4, f/2.8). F-nhamba yakaderera inoratidza nzvimbo yakafara, ichibvumira chiedza chakawanda kupinda mulenzi. A aperture yakakura inobatsira mumamiriro echiedza-pasi kana kutora mifananidzo yakajeka murima.
Image Sensor Kuenderana: Ita shuwa kuti iyo lens inoenderana nemufananidzo sensor saizi yekamera yako. Saizi yemifananidzo yakajairika inosanganisira 1/3 ″, 1/2.7 ″, uye 1/2.5 ″. Kushandisa lens yakagadzirirwa saizi chaiyo yekunzwa kunobatsira kuchengetedza mhando yemufananidzo uye kudzivirira vignetting kana kukanganisa kwemufananidzo.
Lens Mount: Tarisa iyo lens gomo mhando inodiwa kune kamera yako. Mhando dzemhando dzekukwira dzinosanganisira CS gomo uye C gomo. Ita shuwa kuti lenzi yaunosarudza inoenderana nerudzi rwekukwirisa kamera.
Varifocal vs. Fixed Lens:Varifocal lenses inobvumidza iwe kugadzirisa iyo yakatarisa kureba nemaoko, ichipa kuchinjika kushandura ndima yekuona sezvinodiwa. Fixed lenses ane predetermined focal kureba uye anopa yakatarwa nzvimbo yekuona. Sarudza rudzi rwakakodzera zvichibva pane zvaunoda kuongorora.
Budget:Funga bhajeti yako paunosarudza lens. Malensi emhando yepamusoro ane maficha epamusoro anogona kudhura asi anogona kupa kunaka kwemufananidzo uye kusimba.
Mugadziri uye Ongororo:Tsvagurudza vagadziri vane mukurumbira vanonyanya kuchengetedza kamera lenzi. Verenga wongororo yevatengi uye tsvaga kurudziro kuti uve nechokwadi chekuti wasarudza chakavimbika uye chine mukurumbira chigadzirwa.
三,Kusarudza Lens yeIndoor vs. Outdoor: Ndeupi Musiyano?
Paunenge uchisarudza lens yekutarisisa yemukati kana yekunze, pane misiyano mishoma yakakosha yekufunga nezvayo nekuda kwehunhu hwakasiyana hwenzvimbo idzi. Hezvino izvo zvaunoda kuziva:
Lighting Conditions:Nzvimbo dzekunze dzinowanzova nemamiriro emwenje akasiyana, anosanganisira kupenya kwezuva, mimvuri, uye nekushomeka kwechiedza panguva yehusiku. Nzvimbo dzemukati, kune rumwe rutivi, dzinowanzova nemamiriro emwenje anodzorwa ane kujeka kunoenderana. Naizvozvo, iyo lens kusarudzwa kunofanirwa kufunga nezve chaiyo yekuvhenekesa matambudziko enzvimbo yega yega.
Kunze:Sarudza lens ine aperture yakafara (yakaderera f-nhamba) kuti uunganidze chiedza chakawanda mumamiriro epasi-mwenje. Izvi zvinoita kuti pave nani kuoneka uye kunaka kwemufananidzo panguva yemanheru, mambakwedza, kana husiku. Pamusoro pezvo, malenzi ane yakanaka dynamic renji kugona anogona kubata musiyano pakati pechiedza chezuva chakajeka nenzvimbo dzine mimvuri zvinobudirira.
Indoor: Sezvo nharaunda dzemukati dzichiwanzova nemwenje wakafanana, lenzi dzine mwero aperture dzinogona kukwana. Lens ine f-nhamba yakakwira zvishoma inogona kuramba ichiunza yakanaka yemhando yemhando mukati memukati mesetisi pasina kudiwa kweakafara aperture kugona.
Munda Wekuona:Nzvimbo inodiwa yekuona inogona kusiyana zvichienderana nehukuru uye marongerwo enzvimbo yekutarisa.
Kunze: Nzvimbo dzekunze dzinowanzoda nzvimbo yakakura yekuona kuti itarise nzvimbo dzakakura zvinobudirira. Wide-angle lens anowanzo shandiswa kutora maonero akatambanuka, kunyanya kunzvimbo dzakavhurika senge nzvimbo dzekupaka kana kunze kwekuvaka.
Indoor: Munda wekutarisa wemukati wekutarisa unogona kusiyana zvichienderana nenzvimbo chaiyo iri kuongororwa. Mune zvimwe zviitiko, lens yakakura-ekona inogona kuve yakakodzera kuvhara kamuri hombe kana muhoro. Nekudaro, munzvimbo dzakasimba kana uko kutarisisa kwakadzama kunodiwa, lenzi ine nzvimbo yakamanikana yekuona kana kugona kugadzirisa yakatarisa kureba (varifocal lens) inogona kusarudzwa.
Weather Resistance: Makamera ekunze anotarisisa nemalenzi anofanirwa kugadzirwa kuti akwanise kumira nemamiriro ekunze akaoma, semvura, sinou, huruva kana tembiricha yakanyanyisa. Zvakakosha kusarudza lenzi dzakagadzirirwa kushandiswa kunze, izvo zvinowanzouya nezvinhu zvinopikisa mamiriro ekunze sezvivharo zvakavharwa kudzivirira kubva kune unyoro nemarara.
Vandal Resistance:Munzvimbo dzekunze, kune njodzi huru yekuparadza kana kukanganisa. Funga nezvemalenzi ane zvinhu zvekudzivirira senge macasings asingachinjiki kana madomes kudzivirira kukuvara uye kuona kuti mashandiro ekamera nemhando yemufananidzo hazvina kukanganiswa.
IR kuenderana:Kana yako yekutarisa sisitimu inosanganisira infrared (IR) kuvhenekerwa kwehusiku chiratidzo, ita shuwa kuti lenzi inoenderana neIR mwenje. Mamwe malenzi anogona kunge aine IR-yakachekwa sefa kuti iwedzere kunaka kwemufananidzo mukati mezuva ichibvumira kuvhenekera kweIR kunoshanda husiku.
Nguva yekutumira: Jul-05-2023
