Sunday, March 6, 2016

Sigma WR Ceramic Filter

This is Sigma's promo video for their line of WR glass ceramic filters.



My own test was a little less scientific. It involved repeatedly bashing on it with the butt end of a knife over lunch. Not a mark on the filter and only a few second glances from the wait staff...

Verdict: Yes it's pretty strong. Don't try the same with your fancy B+W MCR Nano filters.