G2 Lover 寫:
So CPL effect is 最明顯 when subject is 90 degree to the sun's direction?
Yes, 90° for blue sky. 56° for glass reflection and 53° for water reflection.
G2 Lover 寫:
By making the gun shape with one hand, you mean both hand can do the same right? So 90 degree to the left or right of the sun both will get the best CPL effect?
Yes. Keeping your index finger pointing to the sun, you can rotate your wrist to see the whole 360° area.
G2 Lover 寫:
What if at noon the sun is on top of head? Using CPL will not help I guess.
No. The polarizing effect is the largest at sea level.