518-U & 540-U 'Clearview' filters
518-U & 540-U 'Clearview' filters
- 518-UGE - yellow - 28mm for 518 only
- 518-UDG - grey - 28mm for 518 only
- 540-UGR - green - 20mm for 540 only
- 540-UGE - yellow - 20mm for 540 only