67W - polarising filter

[ashtons99]

I picked up a 67W off Shpock this week, after trying to fit the filter off my 57 onto it I looked up applications for the Garmin filter and confirmed it not suitable. Obviously relating to the 180 lens. Does the 67W have a built in filter or is it just a case of living without?

 

[Outbacknomad]

Without.

Or:

You could look for a really curved set of polarising $10 sunglasses. Cut out a disc and tape it to the front. It you stuff the first one, you have a second go.

I have used B&W filters and plastic polarising film, one is hard pressed to see which is which.