I have a Docter Optics 360 6.7 Tessar which takes 95mm filters. Tiffen makes a series of 4x4 Grad ND filters 2mm and 4mm thick for a very reasonable price. Is there any difference between the filters except for the thickness?
Is there an adaptor out there that I can screw onto my lens or another 95mm filter attached to the lens which will hold a 4x4 filter such as the Tiffens I' ve described? My thinking is that if I can slide the Grad ND up and down in the holder that I can frame any way I want and adjust the Grad ND filter accordingl y.
Is there something like this in existence, or would this be work for Mr. Gr imes?