Yiziphi izindinganiso zokuhlola ezibonakalayo zekhwalithi yokufaka ifilimu yewindi?

Ngemuva kokuthi ifilimu ifakwe engilazini eyisicaba, ukukhanya okudluliswayo kwefilimu kanye nengilazi kuzoba ngaphansi kunaleyo yengilazi emsulwa yoqobo. Zonke izindinganiso zokuhlola izinga kufanele zisekelwe ekungabikho kwamaphutha engilazini ngokwayo.
Njengoba ama-solvents asetshenziswa ngesikhathi sokufakwa, kuzothatha isikhathi esithile ukuze ifilimu ifakwe ngokugcwele ngemva kokusetshenziswa. Nakuba amanye amanzi engabonakali, ahlala ephakathi kwefilimu nengilazi. Ukunamathela okuphelele kwefilimu kubuye kubizwe ngokuthi "isikhathi sokumisa ifilimu". Njengoba ifilimu yoma, i-viscosity yeglue izokhula kancane kancane. Ijubane lokomisa ifilimu linobudlelwano obuthile nobukhulu befilimu nokuqukethwe kwensimbi. Izici zesimo sezulu nazo zinomthelela ekutheni ifilimu yoma ngokushesha kangakanani.
Ngaphambi kokuba ifilimu yome ngokuphelele, ukuhlolwa kwekhwalithi ye-optical kungenziwa. Kufanele kuqashelwe ukuthi ezinye izenzakalo ngaphambi kokuba ifilimu yome ngokuphelele, njengamabhamuza, ukuwohloka kwesithombe sezinto ngenxa yamanzi, nenkungu yamanzi, konke kuyizinto ezivamile.
Ukuhlolwa kwamehlo enqunu kwengilazi eqoshiwe kufanele kube kusuka endlini kuye ngaphandle futhi kusuka engeli efanele, futhi ibanga kufanele libe phakathi kwamamitha angu-2. Ukuhlolwa kufanele kwenziwe ngaphansi kokukhanya okujwayelekile kwemvelo emini futhi akufanele kubekwe ilanga ngqo. Indawo yokuhlola kufanele ibe phakathi kuka-5 cm ukusuka kuhlaka lwengilazi.
Ukufakwa kuzobhekwa njengokufanelekile uma zingekho izimo ezilandelayo (ngaphandle kwezimo ezivamile ezenzeka phakathi nenqubo yokomiswa kwefilimu): udoti, izinwele nemicu, i-glue agglomeration, izigxivizo zeminwe, amabhamuza, imihuzuko kanye nokuqhekeka kwefilimu, nokuguqulwa komzimba wefilimu. , amabala kawoyela efilimu, imiphetho esontekile yefilimu, nezimpawu zommese. Ukutholwa okungenhla kufanele kwenziwe phakathi namahora angu-24 ngemva kokufakwa.
Njengoba ukuba khona kohlaka kuzothinta ukuphelela kokuhlanza nokufakwa, uma kukhona udoti omncane endaweni, kusafaneleka.
Ngokuvamile kunomehluko wobubanzi obungu-1 kuya ku-4 mm phakathi konqenqema lwefilimu kanye nonqenqema lwengilazi. Lokhu ukwenza lula ukuxoshwa kwamanzi ngesikhathi sokufakwa. Lokhu futhi kuqinisekisa ukuthi unqenqema lwefilimu alukwenwa kalula luhlaka lwewindi. Ukunwaya phakathi konqenqema lwefilimu kanye nohlaka lwefasitela kungase kubangele ukuwa kwe-diaphragm.
Kumafilimu okuphepha aminyene, ngokuvamile kunomehluko wobubanzi obungu-1 kuya ku-5 mm phakathi konqenqema lwefilimu kanye nonqenqema lwengilazi. Amafilimu okuphepha anezingqimba eziningi nawo ayasebenza kuleli zinga. Kunconywa ukuthi ugcine umehluko wobubanzi obungu-2 mm, ikakhulukazi kumafilimu amnyama, ukunciphisa ukudluliswa kokukhanya kusuka kuhlaka.
Uma ubukhulu befasitela bukhulu kunobukhulu obujwayelekile befilimu, izingcezu eziningana zefilimu zivunyelwe ukuba zifakwe esiqeshini esisodwa seglasi. Kuyinto evamile ukuba ne-seams phakathi kwamafilimu. Ama-membrane amabili aseduze angeke axhumeke ngokuqondile, noma angase adlulelane, kodwa kungakhathaliseki ukuthi hlobo luni lokuxhuma olusetshenziswayo, ububanzi bomugqa womthungo akumele bube ngaphezu kuka-1 mm.
Amanye ama-membrane athile azothatha isikhathi eside ukuze ome. Sicela ubheke ulwazi lomkhiqizi ngezikhathi ezithile zokomisa ulwelwesi lwalezi zinhlobonhlobo.