Anyone with experience using circular ND filters of this lens. I would typically carry 3, 6 and 10 stop ND's, but unlikely to stack more than 2 at a time. Are any brands free of vignetting when stacking 2 filters? Formatt Hitech, Heliopan, Haida and Singh-Ray all seem to make 105mm circular ND's.
Thanks,
John
Thanks,
John