Chromatic aberration zithunzi

Chromatic aberration - mtundu wa chinyengo chifanizo lasokonezeka chifukwa kupanda ungwiro wa Optics. chodabwitsa Ichi ndi chifukwa kupezeka kwa kuwala ukamapita disolo. Ndi chifukwa chakuti cheza ndi adziwana dzulo (mitundu yosiyanasiyana) ndi osiyana refractive Index. kuwala woyera linakwiriridwa mu sipekitiramu a mitundu yonse, ndi mitundu ndi refracted pa kumathandiza kupeza ngodya zabwino osiyana ndi cholinga pa ndege osiyana.

aberrations Chromatic nthawi zambiri amachititsa kuti maonekedwe a mtundu mizere ya mawanga ndi mikwingwirima, zimene zimachititsa chithunzi sharpness makamaka noticeable pa zinthu kusintha mosiyana. Chitsanzo chabwino ndi mtengo kapena nyumba anawomberedwa ndi maziko a thambo dzuwa. Ambiri kwambiri chilema ichi chimene chili kabowo lotseguka.

magalasi Modern (ie magalasi kupereka chromatic aberration) amagwiritsa zinthu otsika kupezeka amene zochepa refraction ndi chithunzi bwino. Mu magalasi Nikon ali amaimira ED (zopezeka-Low Kupezeka) chizindikiro. Chifukwa chaichi ntchito magalasi aspherical, nalola chithunzi angapo ang'onoang'ono a yopanda chilema. Palinso makamera ndi ulamuliro basi wa aberrations.

Koma ngati mandala alipo akadali amapereka kukokomeza kumeneku, pali njira kuthana nawo. Mungagwiritse ntchito Zosefera, Kusintha zithunzi mmodzi wa akonzi, kapena kugwiritsa ntchito pulagi-kupondereza chromatic aberration. Kodi kuchotsa zakale izi ntchito Adobe Fhotoshop pulogalamu mwamsanga ndipo mosavuta? Imodzi mwa njira pansipa.

Tsegulani yaiwisi file mu Photoshop, izo anatola ndi Adobe Kamera yaiwisi. Kenako pitani ku Mandala Kusintha tsamba. Mu chizindikiro Defringe mwachindunji m'mbali zonse, ndiye zingerengere sakhala yowala. Tsopano chindithandize ndi sliders - woyamba Red / Cyan mpaka kufikira zimasuluka buluu mphonje, ndiye Blue / Yellow mpaka nthawi imene mtundu wa areola ndi idzapita. chithunzi onse ali wokonzeka.

Photos in JPEG mtundu akhoza losasinthika woterowo fyuluta monga kusokoneza - Mandala Malangizo. N'zosavuta kuchotsa aberration chromatic ndi ntchito pulogalamu Adobe Lightroom. The mwayi wa iwowa kuti mwa kuchitira kuwombera wosakwatiwa, mungathe kugwiritsa ntchito zikhazikiko chimodzimodzi mndandanda wonse ndi kalunzanitsidwe.

Chophweka, koma osati nthawi zonse njira yolondola kuchotsa zakale izi zosasangalatsa - kusamutsa chithunzi utoto mtundu kapena chiyambi kuwombera mu utoto. Komanso, podziwa kuti mandala amadwala chotero drawback, m'pofunika kupewa akatemera zosatseka.

The zambiri zimachitika mu chromatic aberration mandala kukhala multiplicity lalikulu mawonekedwe a. Chinthu ndi pa zotalika osiyana focal, kuwapotoza izi m'njira zosiyanasiyana, n'kovuta kwambiri choncho kuwerengera ndi zoperewerazo zopindika zonse zotheka ngati chiwembu zovuta. Ichi ndi chifukwa chake magalasi ndi kuliika Utali, kupereka chithunzi bwino ndipo amakhala kwambiri mtengo kuposa "Zuma".

Pali aberrations zina kachitidwe kuwala. Pamene ntchito mandala ozungulira ndi ozungulira aberration chifukwa cha kusiyana kapepala zounikira ndi pakati ndipo pa m'mbali mwa disolo. Kulankhula ndi chilema mu kondomu kukumbutsa kampira. Kupangitsa chithunzi Kupaka ndi aberrations monga chikomokere ndi astigmatism. Vuto lina kwambiri makamaka khalidwe la Chotambala ndi Chosololera magalasi - kuwala kupotozedwa kuti zayamba exaggerates kumverera kwa kuya chimango. Izo zili kupindika mizere molunjika ndi mwina otukukira kunja ndi concave.

aberrations kwambiri panopa sikovuta kukonza mu akonzi zojambulajambula. Koma nthawi zina, makamaka kudziwa luso ake, n'kosavuta amaona pamene kuwombera ndi mwina kupewa zoipa kamera njingayo.