Filters! (MM511)

One of my camera clubs has been gifted a box of photographic 'things' with a request that we make use of what we can and a donation to the local air ambulance would be appreciated.   I got my request in first and have an Ansel Adams book.  So the rest of the box is going to camera club tomorrow. 

These filters appealed (i.e. couldn't think of anything else to blip) so 11 images focus stacked together and as they are black and white photographed against a white card, I guess they will fit for Mono Monday?
Sorry, not street - but Kineton does not really do edgy, and we only have two streets!

Think this illustrates the loss of a stop or two of light through a polariser?

Thanks to our host.