So I have 2 77mm Canon lenses (10-22 and 24-105) and Im reading its best to get a 'thin' CPL for these lenses because they tend to vignette and make for patchy colour smoothness/hue across the image for landscapes etc IF you get the cheaper thicker ones, mostly at the wide end.

Trouble is the HOYA PRO1D, for example, is around 200.00. and Im sure its actually a 'thin' one anyway.

Comments and suggestions most welcome: I dont wanna buy better glass only to wreck my outcomes with crappy el cheapo CPLs or ones that are too 'thick' to spread the colours nicely across the image or cough up too much vignetting at the wide end.

If I have to pay 200.00+ for such a CPL so be it, just want to be sure Im getting the RIGHT one.