Muna 2016 CFexpress yakaziviswa, nyowani memori kadhi fomati isingazovhiringike neyekare CF (Compact Flash). Yakasiyana uye yakagadzirirwa kupa hukuru hwekuita pamwe chete nezvimwe zvakanakira munzvimbo dzinodiwa zvakanyanya. Ikozvino pane kutaura kwakawanda nezvake semhedzisiro yekuburitswa kwazvino kubva Canon uye Sony. saka izvi zvese zvaunoda kuziva nezveCFexpress, kubva pane zvayo kusvika kumitengo yazvino.
CFExpress, yepamusoro yekuita kuchengetedza
Kunyange zvazvo zvingaita sechimwe chikonzero chevagadziri kuti varambe vachitora mari kubva kuvashandisi, kutanga chiyero chitsva chememori kadhi chinopindura kudiwa kwakajeka kwekuvandudza unyanzvi hwebasa munzvimbo dzinoda zvikuru.
Ichi chimwe chinhu chave kuoneka zvakajeka, nezvikumbiro zvitsva izvo mhando seCanon kana Sony ichangobva kuratidza. Kunyangwe kuzvarwa uye kushandiswa chiri chinhu chatave kuona sechinhu chaicho kwemakore akati wandei.
Muna 2016 chimiro chakaziviswa, kunyange zvazvo pasina kusvika gore gare gare kuti vakatanga kurova pamusika pamwe chete nemakamera akaita seCanon EOS C500 Mark II, Nikon Z6 uye Z7.
Chinhu chikuru cheaya mamemory makadhi matsva kumhanya kwavo kukuru pakuita kufambisa data. Kusvika ku4 GB / s inogona kuwanikwa neimwe yezvitsigiro izvi kuburikidza nekushandisa mitsara ye4 yakabatana uchishandisa PCI 3.0 interface. uye zviripo marudzi matatu eCFexpress makadhi: Type A, Type B uye Type C. Imwe neimwe yeiyi ine hukuru hwakasiyana, saka zviri kumugadziri wega wega kusarudza imwe kana imwe zvichienderana neyavo maitiro.
| CFexpress Type A | CFexpress Type B | CFexpress Type C | |
|---|---|---|---|
| Vipimo | X X 20 28 2,8 mamirimita | X X 38,5 29,6 3,8 mamirimita | X X 54 74 4,8 mamirimita |
| yekubatanidza interface | PCIe Gen3 (1 nzira) | PCIe Gen3 (2 nzira) | PCIe Gen3 (4 nzira) |
| Protocol | NVMe 1.3 | NVMe 1.3 | NVMe 1.3 |
| theoretical speed | 1GB/s (8Gbps) | 2GB/s (16Gbps) | 4GB/s (32Gbps) |
Nekudaro, chinonyanya kukosha ndechekuti makadhi aya haafanire kuvhiringidzwa neCFast. Aya makadhi zvakare akagadzirirwa kushandiswa kwepamusoro-kuita uye, semuenzaniso, makamera seBlackmagic Pocket Cinema Kamera 4K kana 6K.
Nezvekumhanya, aya makadhi ekurangarira akagadzirwa kuti ashandiswe munzvimbo dzinodiwa, padanho remufananidzo uye vhidhiyo. Nekuda kwekumhanya kwayo kwepamusoro kuverenga nekunyora, mafambiro ebasa anovandudzwa munzira dzese.
Pakutanga iwe une mukana wekutora mifananidzo nemavhidhiyo ane ruzivo rwakawanda nekuda kweiyo yakakwirira kunyora kugona. Izvi zvakakosha zvikuru kushanda neRAW zvinhu. Uye ndizvo, semuenzaniso, 1 miniti ye8K vhidhiyo paCanon EOS R5 inotora kutenderedza 18 GB, saka fungidzira kuti rubatsiro runofanira kukurumidza sei kunyora data kuitira kuti urege kugadzira bhodhoro.
Mutafura iyi unogona kuona kuenzanisa kweakasiyana makadhi zviyero zviripo nhasi, mavhezheni avo uye nekumhanya kwakanyanya kwavanogona kusvika.
| Estándar | Shanduro | Kutanga | Protocol (BUS) | Speed (yakazara duplex) |
|---|---|---|---|---|
| SD | 3.0 | 2010 | UHS-I | 104 MB / s |
| SD | 4.0 | 2011 | Uhs-ii | 312 MB / s |
| SD | 6.0 | 2017 | UHS-III | 624 MB / s |
| SD | 7.0 | 2018 | PCI-e 3.0 X1 | 985 MB / s |
| SD | 8.0 | 2020 | PCI-e4-0 x4 | 3900 MB / s |
| UFS Kadhi | 1.0 | 2016 | UFS 2.0 | 600 MB / s |
| UFS Kadhi | 2.0 | 2018 | UFS 3.0 | 1,2 GB / s |
| CFast | 1.0 | 2008 | SATA 300 | 300 MB / s |
| CFast | 2.0 | 2012 | SATA 600 | 600 MB / s |
| XQD | 1.0 | 2011 | PCI-e 2.0 x1 | 500 MB / s |
| XQD | 2.0 | 2014 | PCI-e 2.0 x2 | 1 GB / s |
| CFexpress | 1.0 | 2017 | PCI-e 3.0 x2 | 2 GB / s |
| CFexpress | 2.0 | 2019 | PCI-e 3.0 x4 | Kusvika ku4 GB / s |
CFexpress, kugona uye mitengo
Iye zvino zvatava kuziva chimiro uye isu takajeka nezve zvakanakira, ngatitaure nezve mitengo uye kugona. Sezvazvinoitika nechikumbiro chero chipi zvacho, kubva pakutanga ivo zvigadziriso izvo mutengo wavo wakakwira zvakanyanya kupfuura wezvimwe zvakasimbiswa zvatove pamusika.
Semuenzaniso, CFexpress Type B ye128 GB pari zvino inodhura madhora mazana maviri nemakumi masere. Nekuda kwake, the CFexpress Type A 80 GB uye 160 GB vanoiswa mutengo pamusoro 250 na500 ma euro zvichiteerana. Naizvozvo, iwe unofanirwa kunyatsofunga kana uchizowana zvakanyanya kubva kune izvi zvinotsigira.
Nhasi, vashandisi vazhinji vachiri kukwanisa kushandisa makadhi eSD epamusoro-soro pavanotora mapikicha kana kurekodha vhidhiyo nemakamera emhando yepamusoro. Uye kana iri nyaya yekuda kurekodha vhidhiyo muRAW fomati, Atomos mhando marekodhi anogona kukurudzirwa zvakanyanya.