Black & White Filter Test with TMAX 100 on a Bright Sunlit Seascape

The scene is a midday seascape with typical bad midday light. I wanted to see the effect the filters would have on the scene.
All of these shots were taken with a Pentax 6x7 with a 75mm f/4.5 lens on a tripod.
I used the TTL prism to adjust the aperture until the Pentax meter indicated a good exposure. The Pentax TTL meter did fine except with the Dark RED filter.
The film is Kodak TMAX 100 processed and scanned by North Coast Photographic Services.
I edited the pictures with ACDSee Pro to make them look similar to show the effect of the filters on both the original scan and the edited result.