This bull-horn of a dew-shield...
No.
I made a slimmer shield of aluminium flashing, for roofs and other. I also cut off the bulk of the original shield...
The aluminium shield was epoxied to the remainder of the original dew-shield, the portion that slips over the lens-cell. I then cut a thin strip out the original shield, at the finished end...
...and epoxied it within the new shield at the front, to strengthen, to make it rigid...
Where the new shield joined the retained portion of the original, I had this to fill, all round...
Filled with the epoxy and smoothed...