Having a budget buying spree! Should I get a circular polariser . . . when I have conventional polarisers, bought in film-days for an SLR.?
Looked on Wikipedia - it's very scant, other than it suggests AF systems prefer it.
So, the question is then if you have one, how do you know what sort it is; as I've seen one which is in a similar mount (friction twist) and gave strange colours in some positions when viewed with another circular Polariser.
(Well, printed CPL) . . . I should point out that the filter is affected by the direction the light passes through.
How do you know the Linear/Circular apart???
Pricewise the "circular ones" are much more expensive.