Re--Mamiya 7II RF ---Being I'm going on vac in a few days and just receiving a 65mm f4 to complement my 80 as the 65 is such a sought after lens and the moderately wider persp.I wanted --the lens looks unused BUT is missing the lens shade (the seller told me so no surprise) and being I have the 80 mm shade and it does fit the 65's bayonet--my question is can I use the 80 mm shade on the 65 mm OR will it vignette or just go to my local camera store and pick up a generic 58 mm thread w/a shade and avoid the risk---Just curious as to whether anyone has actually tried the 80 mm shade on the 65 mm lens ? BTW--B&H is out of stock and thats why I haven't ordered it in anticipation of the lens arrival.