Kase magnetic Filters & Vignetting

[hamster100]

I'm after some advice, I know some on here use the Kase Magnetic filters? Is there a need to go up a size in filter thread to avoid vignetting? The largest filter size I have is 77mm so would that size filters be okay or should I get the 82mm and a 77-82 adaptor ? Does this happen if you only if you stack the filters? I don't plan on getting any lenses with a larger filter thread of 77mm.

 

[ecoleman]

I use 77mm filters on 77mm lenses.

No issues until I get down to 14-15mm. Some vignetting when stacking two filters but pretty much gone at 16mm.

 

[hamster100]

Great thanks , just what I wanted to know.