Lee Filters has now launched a set of caps for the Sev5n system. You can now choose to leave your adapter on your lens at all times. The set of 3 caps come in 3 colours red, yellow and blue so you can easily identify the lenses.You can also choose to write on them. 
Tripod Heads
Linhof Tripod & Heads Spares
Loupes & Dark Cloths
Cable Releases
Changing Tents
Cut Film Holders
Cases, Bags & Wraps
Sensor Cleaning
Spirit Levels
Sundry Essentials
Gift Vouchers
Fine Art Accessories
Copying Systems
Hensel
Compact Flash
Compact Flash
Hensel
Generators and Heads
Generators and Heads
Hensel
Lightformers
Lightformers
Hensel
Spares and Essentials
Spares and Essentials
Lee Classic 100
Lee SW150
Lee 85 System
Lee Sev5n
Rodenstock Filters
LSL XXL System
Digital Lenses
System Lenses
Enlarging Lenses
Digital Adapters for 5x4 Cameras
Digital Adapters for MF Digital Cameras
Digital Adapters for MF Analogue Cameras
Digital Adapters for DSLR & Mirrorless Cameras
Alpa
Linhof
Cambo
Silvestri
Lotus View