I saw that message bout gear, that gear threads are not wanted, however I have nobody to ask so here's my question. I just bought Hoya HD MK2 protective filter for my canon RF 100-500 L because I am going to do photos in extreme conditions so I don't want my front lens to get dirty or scratch etc. What do you think about this filter is it worth it, or I should've bought Zeiss T* UV filter or other. Thanks in advance!