Phiri la M12
Phiri la M12 limatanthauza phiri la lenzi lokhazikika lomwe limagwiritsidwa ntchito kwambiri m'munda wa kujambula kwa digito. Ndi phiri laling'ono lopangidwa ndi zinthu zomwe zimagwiritsidwa ntchito makamaka m'makamera ang'onoang'ono, ma webcam, ndi zida zina zazing'ono zamagetsi zomwe zimafuna magalasi osinthika.
Chipinda cha M12 chili ndi mtunda wa 12mm pakati pa flange yolumikizira (mphete yachitsulo yomwe imalumikiza lenzi ku kamera) ndi sensa ya chithunzi. Mtunda waufupi uwu umalola kugwiritsa ntchito magalasi ang'onoang'ono komanso opepuka, zomwe zimapangitsa kuti ikhale yoyenera makamera ang'onoang'ono komanso onyamulika.
Choyimilira cha M12 nthawi zambiri chimagwiritsa ntchito ulusi wolumikizira kuti chigwirizane ndi kamera. Lenziyo imayikidwa pa kamera, ndipo ulusiwo umaonetsetsa kuti imamangiriridwa bwino komanso mokhazikika. Mtundu uwu wa choyimilira umadziwika chifukwa cha kusavuta kwake komanso kugwiritsa ntchito mosavuta.
Ubwino umodzi wa phiri la M12 ndi kuti limagwirizana kwambiri ndi mitundu yosiyanasiyana ya ma lens. Opanga ma lens ambiri amapanga ma lens a M12, omwe amapereka mitundu yosiyanasiyana ya kutalika kwa focal ndi njira zotsegulira kuti zigwirizane ndi zosowa zosiyanasiyana zojambula. Ma lens awa nthawi zambiri amapangidwa kuti azigwiritsidwa ntchito ndi masensa ang'onoang'ono azithunzi omwe amapezeka m'makamera ang'onoang'ono, makina owunikira, ndi zida zina.
Chikhomo cha C
Chophimba cha C ndi chotchingira magalasi chokhazikika chomwe chimagwiritsidwa ntchito m'makanema aukadaulo a kanema ndi makanema. Poyamba chinapangidwa ndi Bell & Howell m'zaka za m'ma 1930 kuti chigwiritsidwe ntchito m'makanema a kanema a 16mm ndipo pambuyo pake chinagwiritsidwa ntchito ndi opanga ena.
Chipinda cha C chili ndi mtunda wa 17.526mm, womwe ndi mtunda pakati pa chipinda choyikira ndi sensa ya chithunzi kapena filimu. Mtunda waufupi uwu umalola kusinthasintha pakupanga ma lenzi ndipo umawapangitsa kuti azigwirizana ndi mitundu yosiyanasiyana ya ma lenzi, kuphatikizapo ma lenzi akuluakulu ndi ma lenzi owonera.
Choyimitsa cha C chimagwiritsa ntchito ulusi wolumikizira kuti chilumikize lenziyo ku thupi la kamera. Lenziyo imayikidwa pa kamera, ndipo ulusiwo umaonetsetsa kuti imamangiriridwa bwino komanso mokhazikika. Choyimitsacho chili ndi mainchesi 1 (25.4mm), zomwe zimapangitsa kuti chikhale chochepa poyerekeza ndi zoyimitsa zina za lenzi zomwe zimagwiritsidwa ntchito m'makina akuluakulu a kamera.
Chimodzi mwa zabwino zazikulu za C mount ndi kusinthasintha kwake. Imatha kulandira mitundu yosiyanasiyana ya ma lens, kuphatikiza ma lens a filimu a 16mm, ma lens amtundu wa 1-inch, ndi ma lens ang'onoang'ono opangidwira makamera ang'onoang'ono. Kuphatikiza apo, pogwiritsa ntchito ma adapter, ndizotheka kuyika ma lens a C mount pamakamera ena, ndikukulitsa mitundu ya ma lens omwe alipo.
Phiri la C lakhala likugwiritsidwa ntchito kwambiri kale pa makamera opanga mafilimu ndipo likugwiritsidwabe ntchito m'makamera amakono a digito, makamaka m'magawo opanga zithunzi zamafakitale ndi asayansi. Komabe, m'zaka zaposachedwa, ma mount ena a lens monga PL mount ndi EF mount afala kwambiri m'makamera aukadaulo a kanema chifukwa cha kuthekera kwawo kugwira masensa akuluakulu ndi ma lens olemera.
Ponseponse, C mount ikadali yofunikira komanso yosinthasintha, makamaka pakugwiritsa ntchito komwe kumafunika kupepuka komanso kusinthasintha.
CS Mount
Chomangira cha CS ndi chomangira cha lenzi chokhazikika chomwe chimagwiritsidwa ntchito kwambiri m'magawo a makamera oyang'anira ndi chitetezo. Ndi chowonjezera cha chomangira cha C ndipo chapangidwira makamaka makamera okhala ndi masensa ang'onoang'ono azithunzi.
Choyimitsa cha CS chili ndi mtunda wofanana ndi wa choyimitsa cha C, womwe ndi 17.526mm. Izi zikutanthauza kuti magalasi oyika CS angagwiritsidwe ntchito pa makamera oyika C pogwiritsa ntchito choyimitsa cha C-CS, koma magalasi oyika C sangaikidwe mwachindunji pa makamera oyika CS popanda choyimitsa chifukwa cha mtunda waufupi wa choyimitsa cha CS.
Choyimitsa cha CS chili ndi mtunda wocheperako wolunjika kumbuyo kuposa choyimitsa cha C, zomwe zimapangitsa kuti pakhale malo ambiri pakati pa lenzi ndi choyezera chithunzi. Malo owonjezerawa ndi ofunikira kuti azitha kuyika zoyezera zithunzi zazing'ono zomwe zimagwiritsidwa ntchito m'makamera owunikira. Mwa kusuntha lenzi kutali ndi choyezera, magalasi oyika a CS amakonzedwa bwino kuti agwirizane ndi zoyezera zazing'onozi ndipo amapereka kutalika koyenera kwa choyimitsa ndi kuphimba koyenera.
Chomangira cha CS chimagwiritsa ntchito cholumikizira cholumikizidwa ndi ulusi, chofanana ndi chomangira cha C, kuti chilumikize lenziyo ku thupi la kamera. Komabe, ulusi wa chomangira cha CS ndi wocheperako kuposa wa chomangira cha C, cholemera 1/2 inchi (12.5mm). Kukula kochepa kumeneku ndi khalidwe lina lomwe limasiyanitsa chomangira cha CS ndi chomangira cha C.
Magalasi a CS mount amapezeka kwambiri ndipo amapangidwira makamaka kuyang'anira ndi kuteteza. Amapereka mitundu yosiyanasiyana ya ma lens ndi ma lens kuti akwaniritse zosowa zosiyanasiyana zowunikira, kuphatikizapo magalasi a wide-angle, ma telephoto lens, ndi ma varifocal lens. Magalasi awa nthawi zambiri amagwiritsidwa ntchito mu makina a CCTV, makamera owonera makanema, ndi mapulogalamu ena achitetezo.
Ndikofunikira kudziwa kuti magalasi oikamo CS sangagwirizane mwachindunji ndi makamera oikamo C opanda adaputala. Komabe, zosiyana ndi izi n'zotheka, pomwe magalasi oikamo C angagwiritsidwe ntchito pamakamera oikamo CS okhala ndi adaputala yoyenera.
Nthawi yotumizira: Juni-13-2023
