Finally, I am able to attach this polarizing filter to my semi-pro camera, with an adapter.
Can you see the difference? The filter helps me to reduce reflection very well.
This filter can be adjusted. It’s not for focusing, but to increase or decrease the polarized light angle. There is a pointer on the outer ring.
There are 2 types of polarizers:- Circular and Linear. The one I have here is circular, which is usually used on an auto-focus DSLR , where as the linear polarizer us usually used on a video camera.
[With Polarizer - maximun 90 degrees]
[With Polarizer - minimun 0 degree]
Besides reducing reflection, it also makes the colour of sky more saturated, because it filters out the reflection of tiny water droplet in the atmosphere.
However, there is a drawback, where it takes at least 1.5 stops of light, which has the effect as ND filter.
I wish to have an ND filter, and I will blog about it after I have got it.