The lens shade you can see in the above image is a for HASSELBLAD 38 shade with a diameter of 90mm .
For hand held shooting , I made my own quick "snap on" LCC filter .
The LCC filter snaps onto the shade just by a soft kind of "screw on and off" .
The filter does not fall off . The rubber ring gives a good grip of the filter to the shade .
Click on the image to see some details . You will not only see the filter but also a lot of dust .
I have made filters for 70 mm , 75mm and 90mm diameter . That covers all of my lenses I would ever use for hand held shooting .