----- Original Message ----- From: "Nenad Djurdjevic" Subject: Re: 28-70 F4 SMC FA AL
> The 28-70f4 has one quirk and that is that it needs filters with extra-thin > frames as normal thickness filter rings cause it to vignette at the 28mm > setting (causing a slight darkening of the corners). I would guess that > even the thinnest polarising filters would be out of the question. You can workaround this by using a step-up ring and a larger filter size. A 52-58mm step up should be ample. William Robb
