Quote:
Originally Posted by kirbinster
Are there any downsides to moving the filter further out from the front element of the lens with these rings? Does it cause more lens flare or other problems? Also wouldn't this be a problem on a wide angle lens.
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If you have already sprung for a wide-angle ... the average filter-ring on those is 77mm. You do NOT need to have a step-down ring involved. I kind of took that into consideration when I choose the 77mm diameter choice. Also, consider a low-profile CP-filter if you find the edge of the filter getting caught at the very wide focal lengths. Low profile filter do not have the front filter threads on them, so the screw-on lens hood and ens cap will not work. You will, more than likely, need a "press-on" lens cap of some type.
Now, if you need an 82mm CP-filter to fit your wide-angle
SIGMA 10-20mm f/3.5 DC EX Zoom lens or
20mm f/1.8 DG RF EX,
just buy one and stop screwing around.
B+W | 82mm Circular Polarizer Glass Filter (Slim) | 65016931
Please note: I did not propose this as a one-size fits all ... but simply a temporary solution to cover a lot of ground, in one fell swoop. You know how much money you are sporting ... have at it.