NASA ta zaɓi fasahohin da suka dace don ayyukanta don tabbatar da aikinsu a cikin mawuyacin yanayi na sararin samaniya. Kwanan nan hukumar ta buga "Sakamakon Gwajin Kyamarar Hannu na Farko." An gudanar da gwaje-gwajen a cikin 2022. Rahoton ya kimanta aikin kyamarorin Canon EOS R5, Nikon D6, da Nikon Z7II waɗanda ba a gyara ba a cikin yanayi kusa da sararin samaniya gwargwadon iko.
Kyamarorin Canon R5 da Nikon D6 sun jure gwajin injin kuma suna aiki a yanayin zafi tsakanin -30°C zuwa +40°C. NASA ta lura cewa kyamarorin biyu sun nuna "irin wannan aiki" a cikin wannan yanayin zafi. Kafin gwajin, an dumama kyamarorin da kayan aikin da ke da alaƙa zuwa 50°C na tsawon awanni 72 don cire abubuwan da ke haifar da gurɓatawa kafin gwajin injin. Daga nan aka sanya kyamarorin a cikin wani gida mai sarrafa zafin jiki a cikin ɗakin injin, kuma an yi amfani da Wi-Fi da Bluetooth don sarrafa ɗaukar hoto da bidiyo.
An gwada kyamarorin a yanayin shiru da bidiyo, duk da cewa D6, ba kamar R5 ba, bai yi gwajin bidiyo gaba ɗaya ba. R5 ta ɗauki bidiyon har sai da ya yi zafi sosai kuma ya rufe, bayan haka aka ba ta lokacin sanyaya mintuna biyar kafin a ci gaba da gwajin. Masu bincike ba su sake gudanar da gwaje-gwajen bidiyo a kan D6 ba saboda yiwuwar rasa sadarwa da kyamarar. Duk da haka, injiniyoyin NASA sun ɗauki R5 da D6 sun dace da amfani da sararin samaniya, tare da gargaɗin cewa ba a yi nazarin aikin bidiyon D6 dalla-dalla ba.
Nikon Z7II, sabanin D6, ta kasa cin jarrabawar zafin jiki gaba daya. A cewar rahoton, ta yi aiki a cikin injin tsabtace iska a zafin ɗaki, amma a yanayin zafi mai tsanani, ta rasa haɗinta bayan ta yi rikodin bidiyo kuma ba ta iya sake haɗawa ba. Kyamarar ba ta lalace gaba ɗaya ba, amma an ɗauke ta a matsayin abin dogaro.
Lokacin gwada kyamarorin D6 da R5, an sanya su a ƙarƙashin yanayi daban-daban - an saita D6 don ɗaukar hotunan RAW da JPEG, yayin da R5 "ya ketare wannan saitin yayin shiri" kuma ya yi rikodin fayilolin JPEG kawai.
Baya ga gwajin kyamara, rahoton ya gabatar da sakamakon gwajin radiation na nau'ikan katunan CFexpress guda huɗu: Lexar, SanDisk, ProGrade, da Sony. Babu ɗaya daga cikin katunan da ya gaza gaba ɗaya; NASA ta ce an warware kurakuran da suka shafi radiation na ɗan lokaci ta hanyar sake saita katunan. Katin SanDisk ya fito a matsayin wanda NASA ta fi so, amma masu gwajin sun jaddada cewa sakamakon ya dogara ne akan ainihin saitunan gwaji da ƙarfin radiation kuma bai kamata a ɗauke shi a matsayin shawarar siye ba.
Wannan rahoton na 2022 yana da ban sha'awa musamman idan aka yi la'akari da aikin da NASA ta yi daga baya kan kyamarar wata ta musamman. A shekarar 2024, NASA ta buga wata takarda kan gwajin kyamarar kasuwanci da aka gyara don yanayin wata. Takardar ta kammala da cewa kyamarar da tsarin kariya ta zafi ya ci gaba da aiki a ƙarƙashin mafi yawan yanayi da aka kwaikwayi, amma an lura da walƙiya a allon LCD da kuma zafi fiye da kima a ƙarƙashin yanayi mai tsanani.
Kyamarar wata mai ɗaukar hoto ta NASA ta yanzu, wacce ke da amfani ga kowa da kowa, an gina ta ne akan wani sabon kyamarar Nikon Z9 mai ruwan tabarau na Nikkor, bargon kariya mai zafi, kayan lantarki da aka gyara, da kuma riƙo na musamman don amfani da safar hannu ta sararin samaniya.
source:
source: 3dnews.ru
