Using Color Filters with Black and White Film » Shoot It With Film
B+W Polarizing Filters - YouTube
B + W Camera Lens Filters, Video Filters & Accessories
Amazon.com : B+W 62mm UV 010 Filter New F-PRO Made in Germany : Camera Lens Sky And Uv Filters : Electronics
Amazon.com : B + W 77mm UV Protection Filter (010) for Camera Lens – Standard Mount (F-PRO), MRC, 16 Layers Multi-Resistant Coating, Photography Filter, 77 mm, Clear Protector : Camera Lens Sky