A cikin 2016 an sanar da CFexpress, sabon tsarin katin ƙwaƙwalwar ajiya kada a ruɗe shi da tsohon CF (Compact Flash). Ya bambanta kuma an ƙirƙira shi don bayar da mafi girman aiki da sauran fa'idodi a cikin mahalli masu buƙatar gaske. Yanzu an sami ƙarin magana game da shi sakamakon sabbin abubuwan da suka fito daga Canon da Sony. haka wannan duk abin da kuke buƙatar sani game da CFexpress, daga siffofinsa zuwa farashinsa na yanzu.
CFexpress, babban aikin ajiya
Ko da yake yana iya zama kamar wani uzuri ga masana'antun don ci gaba da fitar da kuɗi daga masu amfani, ƙaddamar da sabon ma'auni na katin ƙwaƙwalwar ajiya yana amsa buƙatu mai mahimmanci don inganta ƙarfin aiki a cikin wurare masu wuyar gaske.
Wannan wani abu ne da ake ganin yanzu a sarari, tare da sabbin shawarwarin da samfuran kamar Canon ko Sony suka gabatar kwanan nan. Ko da yake haihuwa da amfani wani abu ne da muke gani a matsayin wani abu na gaske tun wasu shekaru yanzu.
A cikin 2016 an sanar da tsarin, ko da yake ba sai bayan shekara guda ba sun fara shiga kasuwa tare da kyamarori kamar Canon EOS C500 Mark II, Nikon Z6 da Z7.
Babban fasalin waɗannan sabbin katunan ƙwaƙwalwar ajiya shine babban saurin su lokacin yin canja wurin bayanai. Har zuwa 4 GB/s za a iya samu ta ɗayan waɗannan tallafi ta hanyar amfani da layukan 4 waɗanda aka haɗa ta amfani da ƙirar PCI 3.0. kuma akwai nau'ikan katunan CFexpress guda uku: Nau'in A, Nau'in B da Nau'in C. Kowane ɗayan waɗannan yana da girman daban-daban, don haka ya rage ga kowane masana'anta ya zaɓi ɗaya ko ɗayan bisa nasu ma'auni.
| CFexpress Nau'in A | CFexpress Nau'in B | CFexpress Nau'in C | |
|---|---|---|---|
| Dimensions | X x 20 28 2,8 mm | X x 38,5 29,6 3,8 mm | X x 54 74 4,8 mm |
| haɗin haɗin gwiwa | PCIe Gen3 (layi 1) | PCIe Gen3 (layi 2) | PCIe Gen3 (layi 4) |
| Protocol | 1.3 NVMe | 1.3 NVMe | 1.3 NVMe |
| saurin ka'idar | 1GB/s (8Gbps) | 2GB/s (16Gbps) | 4GB/s (32Gbps) |
Koyaya, abu mafi mahimmanci shine kada waɗannan katunan su ruɗe da CFast. Waɗannan katunan kuma an yi niyya don amfani mai girma kuma, alal misali, kyamarori kamar Blackmagic Pocket Cinema Camera 4K ko 6K.
Game da saurin gudu, waɗannan katunan ƙwaƙwalwar ajiya an ƙirƙira su don amfani da su a wurare masu buƙata, duka a matakin hoto da bidiyo. Godiya ga saurin karantawa da rubutawa, ana inganta ayyukan aiki ta kowace hanya.
Da farko kuna da damar ɗaukar hotuna da bidiyo tare da ƙarin bayani godiya ga irin wannan babban ƙarfin rubutu. Wannan yana da mahimmanci don aiki tare da kayan RAW. Kuma shi ne, misali, Minti 1 na bidiyo na 8K akan Canon EOS R5 yana ɗaukar kusan 18 GB, don haka tunanin yadda sauri goyon bayan ya rubuta bayanai domin kada ya haifar da kwalabe.
A cikin wannan tebur za ku iya ganin kwatancen ma'auni na katunan daban-daban waɗanda ke wanzu a yau, nau'ikan su da matsakaicin saurin da za su iya kaiwa.
| A halin yanzu | Shafi | Kaddamarwa | Protocol (BUS) | Gudun (cikakken 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 |
| Katin UFS | 1.0 | 2016 | UFS 2.0 | 600 MB / s |
| Katin UFS | 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 | Har zuwa 4 GB / s |
CFexpress, iyakoki da farashi
Yanzu da muka san tsarin kuma mun bayyana sarai game da fa'idodinsa, bari muyi magana game da farashi da iya aiki. Kamar yadda yake faruwa tare da kowane tsari, tun daga farko su ne mafita waɗanda farashin su ya fi na sauran waɗanda aka kafa riga a kasuwa.
Misali, CFexpress Nau'in B na 128 GB a halin yanzu farashin kusan Yuro 280. A nata bangaren, da CFexpress Type A 80 GB da 160 GB ana farashi kusan 250 da Euro 500 bi da bi. Don haka, dole ne ku yi tunani a hankali idan za ku sami mafi kyawun waɗannan tallafin.
A yau, masu amfani da yawa har yanzu suna iya amfani da katunan SD masu inganci yayin ɗaukar hotuna ko yin rikodin bidiyo tare da kyamarori masu inganci. Kuma game da buƙatar yin rikodin bidiyo a cikin tsarin RAW, ana iya ba da shawarar nau'in nau'in Atomos.