Seto 1.499 Semi ya gama lens
Gwadawa
| 1.499 Semi-gama ruwan tabarau | |
| Model: | 1.499 Lens na gani |
| Wurin Asali: | Jiangsu, China |
| Brand: | Kafa |
| Labaran ruwan tabarau: | Guduro |
| Lanƙwasa | 50b / 200/200/200/200 /b / 600b / 800b |
| Aiki | Semi-an gama |
| Loses launi | Share |
| Indextive Index: | 1.499 |
| Diamita: | 70/65 |
| Halin da ke daraja: | 58 |
| Takamaiman nauyi: | 1.32 |
| Transritance: | > 97% |
| Zabi zabi: | UC / HC / HMC |
| LATSA | Kore |
Sifofin samfur
1) fa'idodin 1.499
Har yanzu ba ta da tsada sosai, tun yana cikin shekaru 70. Fili yana magana, yana da kyakkyawan, surface mai kyau, kuma kadan murdiya a gefuna na ruwan tabarau
Babban fa'idodi masu ruwan tabarau na Cr39 akan ruwan tabarau na baya na baya sune nauyi mai nauyi, kuma mafi kyawun juriya. Lowerarancin nauyin da aka ba da izini don gwaji tare da ruwan tabarau mafi girma, tun daga CR39 yana da wuta sosai cikin nauyi.
FRECOTH CR39 yana da mafi kyawun juriya da ruwan tabarau na gilashin, har yanzu yana iya farfado ƙarƙashin tasiri mai ƙarfi. A saboda wannan dalili, da yawa da kuma karin ƙwararrun ƙwararru suna matsawa zuwa kayan buɗe ido (polycarbonate da wasu, da za a tattauna a posts na gaba) waɗanda kusan ba zai yiwu su faɗi ba.
④far mai haske fiye da ruwan tabarau na gilashi
⑤ Tabbatar da ingancin inganci a cikin kewayon da yawa
⑥exists a cikin dukkan zane da darajar-kara magani
⑦for duk masu siye suna neman mai sauki, masu ruwan tabarau
2) minus da kuma ruwan tabarau mai ƙarewa
Za'a iya yin ①erens tare da ikon Dioptric daban-daban daban-daban daga ruwan tabarau na Semi ɗaya. Curvature na gaba da baya saman yana nuna ko ruwan tabarau zai sami ƙari ko karancin iko.
Lens na gama gari shine Raw Blank da aka yi amfani da shi don samar da mafi zurfin RX lens bisa ga takardar sayan magani. Buƙatun Ikon Jeiko daban-daban don neman nau'ikan ruwan tabarau daban-daban ko kuma tushen tushe.
③rther fiye da kawai ingancin kwaskwarima, ruwan tabarau na Semi sun fi kusan ingancin ciki, kamar madaidaici da kuma tsayayyen sigogi, musamman ga ruwan tabarau.
3) Menene banbanci tsakanin HC, HMC da ShC?
| Hard Conating | Aronating / AR Multi shafi | Super Hydrophobic shafi |
| Yana sa ruwan tabarau mai wuya da ƙara juriya abruson | yana ƙaruwa da fassarar ruwan tabarau kuma yana rage tunani | Yana sanya ruwan kare ruwa, mai etistat, anti silli da juriya mai |
Ba da takardar shaida
Masana'antarmu
