Kumvetsetsa kusiyana kwa Pakati pa Pulogalamu Yathunthu ndi Sensors Zokolola
Chimodzi mwa zinthu zosokoneza kwambiri pamene kupititsa patsogolo ku DSLR kumvetsetsa kusiyana pakati pazithunzi zonse ndi makamera opangidwa. Mukamagwiritsa ntchito makamera osakanikirana, izi sizingakhale zofunikira zomwe mukufunikira kuzimbana nawo, monga malonda opangidwa kuti apangitse kusiyana kwake kusadziwika. Koma pamene muyamba kuyang'ana kugula DSLR, kumvetsetsa zowonongeka ndizomwe zimagwirizanitsa ndi mbeu zowonongeka zidzakuthandizani kwambiri.
Pulogalamu Yathunthu
Kubwerera m'masiku a kujambula mafilimu, kunali kukula kamodzi kokha mujambula 35mm: 24mm x 36mm. Choncho pamene anthu akutchula makamera ojambula zithunzi mu digital kujambula, akukambirana kukula kwa masentimita 24x36.
Mwamwayi, makamera onse amtunduwu amayamba kubwera ndi mtengo wamtengo wapatali. Kamera yotsika mtengo kwambiri Canon kamera, mwachitsanzo, ndi madola zikwi zingapo. Makamera ochuluka kwambiri amajambula amagwiritsidwa ntchito ndi ojambula ojambula, omwe amafunikira zowonjezera. Njira zina ndizo "makina opangira" makamera, kapena makamera a "mbewu sensor". Izi zili ndi mtengo wotsika mtengo, zomwe zimapangitsa iwo kukhala okongola kwambiri kwa omwe akuyamba ndi DSLRs.
Choyika Chokhazikika
Chithunzi chojambulidwa kapena senensa chili chofanana ndi kutenga pakati pa chithunzicho ndi kutaya kunja. Kotero kwenikweni, iwe umasiyidwa ndi chithunzi chochepa kwambiri kuposa chachizolowezi - chofanana ndi mawonekedwe a filimu ya APS yaifupi. Ndipotu, Canon , Pentax ndi Sony zambiri zimagwiritsa ntchito makina awo opangidwa ndi "APS-C". Koma kuti asokoneze nkhani, Nikon amachita zinthu mosiyana. Nikon ali ndi makamera odzaza pansi amatha kukhala pansi pa "FX," pomwe makamera ake opangidwa ndizithunzi amadziwika kuti "DX." Potsirizira pake, Olympus ndi Panasonic / Leica amagwiritsa ntchito mawonekedwe osiyana kwambiri omwe amadziwika monga dongosolo lachinayi.
Mbewu ya sensa imasiyanitsa pang'ono pakati pa opanga komanso. Mitengo yambiri ya opanga ndi yochepa kuposa chiwonetsero chonse cha frame ndi 1.6 chiŵerengero. Komabe, chiwerengero cha Nikon ndi 1.5 ndi Olympus 'chiwerengero ndi 2.
Lens
Apa ndi pamene kusiyana pakati pa chithunzi chodzaza ndi chophwanyika chikuwonekera. Ndi kugula kamera ya DSLR imabwera mwayi wogula magalasi onse (opatsidwa bajeti). Ngati mumachokera kumamera a kanema, mukhoza kukhala ndi ma lens osinthika . Koma, mukamagwiritsa ntchito kamera yowonongeka, muyenera kukumbukira kuti kutalika kwa magalasi amenewa kudzasinthidwa. Mwachitsanzo, ndi makamera a Canon, mudzafunika kuchulukitsa kutalika kwa 1.6, monga tafotokozera pamwambapa. Choncho, 50mm yalayezo yamakono idzakhala 80mm. Izi zingakhale zopindulitsa kwambiri pa telephoto lens, monga momwe mungapindulire millimeters, koma flip mbali ndikuti mbali-angle lens adzakhala maselo wamba.
Okonza atulukira njira zothetsera vutoli. Kwa Canon ndi Nikon, omwe onse amapanga makamera odzaza, yankho lakhala lopanga makalisi osiyanasiyana omwe apangidwira makamera a digito - EF-S ya Canon ndi DX ya Nikon. Mapulogalamu awa amaphatikizapo malonda ambiri omwe amagwiritsidwa ntchito, akalemekezeka, amalolabe kupenya. Mwachitsanzo, onse opanga makina amachititsa makina opangira 10mm, motero amapereka kutalika kwa 16mm, omwe akadali lens lalikulu kwambiri. Ndipo magalasiwa apangidwanso kuti achepetse kupotoza ndi vignetting pamphepete mwa fano. Nkhaniyi ndi yofanana ndi omwe opanga makinawa omwe amapanga makamera okhaokha, monga magalasi awo omwe apangidwa kuti ayendetse limodzi ndi makamerawa.
Kodi Pali Kusiyanasiyana pakati pa Mitundu ya Lens?
Pali kusiyana pakati pa malonda, makamaka ngati mugula machitidwe a Canon kapena Nikon. Ndipo opanga awiriwa amapereka makamera aakulu kwambiri a makamera ndi mapulogalamu, kotero ndizotheka kwambiri kuti mudzagwiritse ntchito imodzi mwa iwo. Ngakhale magalasi a digito ali okwera mtengo kwambiri, khalidwe la optics silibwino bwino ngati mafilimu oyambirira a film. Ngati mukungoyang'ana kugwiritsa ntchito kamera yanu kuti mujambula zithunzi, ndiye kuti simungathe kuzindikira kusiyana kwake. Koma, ngati mukuyang'ana kuti mudziwe zambiri zokhudza kujambula kwanu, ndiye kuti ndibwino kuti muyambe kuyendetsa ndalama zamakono.
Tiyeneranso kukumbukira kuti majekensi a EF-S a Canon sangagwire ntchito konse pa makamera onse a kampani. Mitundu ya Nikon DX idzagwira ntchito pa makamera ake onse, koma padzakhala chisokonezo potero.
Kodi Fomu Ili Yolondola Kwa Inu?
Makina opanga mawonekedwe amodzi amakupatsani mwayi wogwiritsa ntchito malonda pamlingo wawo wokhazikika, ndipo amawunikira mwakukhoza kwawo kuthana ndi kuwombera ku ISOs zapamwamba. Mukaponyera zambiri zachilengedwe ndi zochepa, ndiye kuti mosakayikira mudzazipeza zothandiza. Anthu omwe amawombera malo ndi zithunzi zojambula adzafunanso kufufuza zosankha zonse monga momwe khalidwe lajambula ndi mtundu wa lens lapamwamba likuyandikira kwambiri.
Kwa chilengedwe, nyama zakutchire, ndi masewero okonda masewera, chojambulidwa chojambulidwa chitha kumveka bwino. Mukhoza kugwiritsa ntchito kutalika kwa kutalika kwa kutalika komwe kumaperekedwa ndi zozizwitsa zosiyanasiyana ndipo makamerawa amakhala ndi liwiro lofulumira kupopera. Ndipo, pamene iwe uyenera kuwerengera kutalika kwa kutalika, iwe udzasunga malo oyamba a lens. Kotero, ngati muli ndi makina 50mm opangidwa ndi f2.8, ndiye kuti izi zidzasungidwa bwino ngakhale kukula kwa 80mm.
Zonsezi ndizofunikira. Makamera odzaza ndi aakulu, olemerera, ndipo okwera mtengo kwambiri. Iwo ali ndi ubwino wambiri kwa akatswiri, koma anthu ambiri safunikira kwenikweni izi. Musanyengedwe ndi wogulitsa amene akukuuzani kuti mukufunikira kamera yamtengo wapatali. Pokhapokha mutakhala ndi mfundo zochepazi m'malingaliro, muyenera kukhala odziwa bwino kusankha zosankha zanu.