UV haze filter or just plain clear

[Xmas]

my finger prints are difficult to remove from multi coated lenses or filters.
Rain drops ditto.
We don't get summy side /16 - umbrella /5.6 more normal
Our islands are so small that the seagulls are normal visitors.
Lens hoods don't offer 100% protection against sea gull by product.
If you can shatter filter glass and tell us it damaged lens glass what did it do to hood?
The rubber hoods will absorb shock the vented hoods ditto but bending metal hoods back to shape in vice is easy don't think it works for optics...
Lenses with bent filter rings cheaper.
Even seen a DSLR user looking at zoom the filter had come off the lens the filter ring on the lens was damaged (shattered) as was the rear of the hood. Dont carry your DSLR with hood reversed...

 

[AgX]

What about element clearance? This is where extra care needs to be taken, especially with new users unfamiliar with asp. front elements and limited (if any) frontal clearance for filters. Low profile filters for ultra-wide MF lenses may contact asp. front elements (true for example with Canon's TS-E 24mm f3.5L tilt/shift lens where B+W filters work well).

My idea was that the underside of the glass at least of a standard-profile filter is as low or higher as the flange of its male thread. That thus it is at the plane of the front-end of the lens barrel or even more off.

Measurements just taken at same standard-profile filters though showed the glass can even be below that plane.

 

[John Koehrer]

The oleophobic(sp?) coating is something else. My new glasses have it and water beads up & rolls off. Fingerprints wipe off with a microfiber cloth.