Polarisatsioonifiltrist https://contrastly.com/tips-tricks-on-using-a-polarizing-filter/
Filtritest üldiselt. ND - neutral density filter all mõeldakse siin artiklis poolfiltrit http://www.thephotoargus.com/introduction-to-camera-filters/
Portree-nipikesi http://www.thephotoargus.com/helpful-portrait-photography-tips/
