I got a CP1 when I brought my Canon and my 10 months of experience in shooting places with water (seascapes, waterfalls, creekbeds) has taught me not to go anywhere near a water image without the CP attached- it produces better sharper water based images and I think I know why but I have no idea of the HOW which means I may not be getting the value of the CP at times.
My question is simple; a CP can be turned around 360 degrees when fitted to the end of my camera lenses. Is the CP going to produce the same results wherever you have it on the lens because it is completely the same all over ?
I remember reading about ND and GND filters around the same time and I know they have to be set by rotating the filter on the lens because half the filter is darker than the other part etc.
All i want is something that I can screw onto my camera to dull the blown out whites and underexposure of the surrounding area with waterfalls, for example, without having to check the filters position to make sure the darker part is aimed at the right spot.
IF the CP does not change the effect at any position on a 360 degree rotation when fitted to the lens I am going to be a happy camper because that is what I want.
Meantime I will Google CP filters and educate myself If I have time before my trip to Tassie in a few days, but if anyone can put an end to my anxieties about not using the CP intelligently please enlighten me.