Ngo-2016 kwamenyezelwa i-CFexpress, ifomethi yememori khadi entsha okufanele ididaniswe ne-CF endala (Compact Flash). Ihlukile futhi iklanyelwe ukunikeza ukusebenza okukhulu kanye nezinye izinzuzo ezindaweni ezidinga kakhulu. Manje sekukhulunywe okwengeziwe ngaye njengomphumela wokukhishwa kwakamuva okuvela kuCanon noSony. ngakho lokhu konke odinga ukukwazi mayelana CFexpress, kusukela ezicini zayo kuya ezintengo zayo zamanje.
I-CFExpress, isitoreji sokusebenza okuphezulu
Nakuba kungase kubonakale njengezinye izaba zokuthi abakhiqizi baqhubeke nokukhipha imali kubasebenzisi, ukwethulwa kwezinga lememori khadi entsha kusabela esidingweni esicacile sokuthuthukisa amakhono omsebenzi ezindaweni ezidinga kakhulu.
Lena into ebonakala ngokucacile manje, ngeziphakamiso ezintsha ezisanda kwethulwa yizinkampani ezifana noCanon noma iSony. Nakuba ukuzalwa nokusetshenziswa kuyinto ebesiyibona njengento yangempela iminyaka ethile manje.
Ngo-2016 ifomethi yamenyezelwa, nakuba kwaze kwaba ngemva konyaka lapho baqala khona ukutholakala emakethe kanye namakhamera afana neCanon EOS C500 Mark II, Nikon Z6 neZ7.
Isici esiyinhloko salawa mamemori khadi amasha yijubane lawo eliphezulu lapho enza ukudluliselwa kwedatha. Kufika ku-4 GB/s kungafinyelelwa ngenye yalezi zisekelo ngokusebenzisa imigqa emi-4 exhunywe kusetshenziswa isixhumi esibonakalayo se-PCI 3.0. futhi kukhona izinhlobo ezintathu zamakhadi e-CFexpress: Uhlobo A, Uhlobo B nohlobo C. Ngayinye yalezi inosayizi ohlukile, ngakho-ke kukumkhiqizi ngamunye ukukhetha oyedwa noma omunye ngokusekelwe kumibandela yakhe.
| I-CFexpress Uhlobo A | I-CFexpress Uhlobo B | I-CFexpress Uhlobo C | |
|---|---|---|---|
| Ubukhulu | X x 20 28 2,8 mm | X x 38,5 29,6 3,8 mm | X x 54 74 4,8 mm |
| uxhumano interface | I-PCIe Gen3 (umzila ongu-1) | I-PCIe Gen3 (umzila ongu-2) | I-PCIe Gen3 (umzila ongu-4) |
| Isivumelwano | NVMe 1.3 | NVMe 1.3 | NVMe 1.3 |
| isivinini setiyetha | 1GB/s (8Gbps) | 2GB/s (16Gbps) | 4GB/s (32Gbps) |
Nokho, okubaluleke kakhulu ukuthi lawa makhadi akufanele adidaniswe ne-CFast. Lawa amakhadi ahloselwe ukusetshenziswa okusezingeni eliphezulu futhi, isibonelo, amakhamera afana neBlackmagic Pocket Cinema Camera 4K noma 6K.
Mayelana nesivinini, lawa mamemori khadi aklanyelwe ukusetshenziswa ezindaweni ezinzima, kokubili ezingeni lesithombe nevidiyo. Ngenxa yesivinini sayo esiphezulu sokufunda nokubhala, ukuhamba komsebenzi kuthuthukiswa ngazo zonke izindlela.
Ekuqaleni unethuba lokuthwebula izithombe namavidiyo ngolwazi oluthe xaxa ngenxa yomthamo omkhulu kangaka wokubhala. Lokhu kubaluleke kakhulu ukusebenza ngezinto ezi-RAW. Futhi yilokho, ngokwesibonelo, Umzuzu ongu-1 wevidiyo engu-8K kuCanon EOS R5 ithatha cishe u-18 GB, ngakho-ke cabanga ukuthi ukusekelwa kufanele kusheshe kangakanani ukubhala idatha ukuze kungadali ibhodlela.
Kuleli thebula ungabona ukuqhathaniswa kwamazinga ekhadi ahlukene akhona namuhla, izinguqulo zawo kanye nesivinini esiphezulu abangasifinyelela.
| Estándar | I-Versión | Qalisa | Iphrothokholi (IBUS) | Isivinini (i-duplex egcwele) |
|---|---|---|---|---|
| SD | 3.0 | 2010 | UHS-I | I-104 MB / s |
| SD | 4.0 | 2011 | UHS-II | I-312 MB / s |
| SD | 6.0 | 2017 | UHS-III | I-624 MB / s |
| SD | 7.0 | 2018 | I-PCI-e 3.0 X1 | I-985 MB / s |
| SD | 8.0 | 2020 | PCI-e4-0 x4 | I-3900 MB / s |
| Ikhadi le-UFS | 1.0 | 2016 | I-UFS 2.0 | I-600 MB / s |
| Ikhadi le-UFS | 2.0 | 2018 | I-UFS 3.0 | I-1,2 GB / s |
| I-CFast | 1.0 | 2008 | I-SATA 300 | I-300 MB / s |
| I-CFast | 2.0 | 2012 | I-SATA 600 | I-600 MB / s |
| I-XQD | 1.0 | 2011 | I-PCI-e 2.0 x1 | I-500 MB / s |
| I-XQD | 2.0 | 2014 | I-PCI-e 2.0 x2 | I-1 GB / s |
| I-CFexpress | 1.0 | 2017 | I-PCI-e 3.0 x2 | I-2 GB / s |
| I-CFexpress | 2.0 | 2019 | I-PCI-e 3.0 x4 | Kuze kube ngu-4 GB / s |
CFexpress, amakhono nezintengo
Manje njengoba sesiyazi ifomethi futhi sesicacile mayelana nezinzuzo zayo, ake sikhulume ngamanani namakhono. Njengoba kwenzeka nganoma yisiphi isiphakamiso, kusukela ekuqaleni ziyizixazululo izindleko zazo ziphakeme kakhulu kunezinye ezisungulwe kakade emakethe.
Isibonelo, i-CFexpress Type B ye-128 GB okwamanje ibiza cishe ama-euro angama-280. Ngakolunye uhlangothi, i- Uhlobo lwe-CFexpress A 80 GB kanye no-160 GB zibiza cishe Ama-250 kanye nama-500 euros ngokulandelana. Ngakho-ke, kufanele ucabange ngokucophelela uma uzozuza kakhulu kulezi zisekelo.
Namuhla, abasebenzisi abaningi basakwazi ukusebenzisa amakhadi e-SD asebenza kahle kakhulu lapho bethatha izithombe noma beqopha ividiyo ngamakhamera ekhwalithi ephezulu. Futhi esimweni sokudinga ukurekhoda ividiyo ngefomethi ye-RAW, izirekhodi zohlobo lwe-Atomos zinganconywa kakhulu.