It would be a nice option to have a uvir cut replacement glass offering. I switch between these cameras and my 2600mc pro which has a built in uvir cut filter. I have to change my backfocus by 0.66 when switching cameras with a filter drawer and filter in place. I guess I could replace my 2600 with an AR glass but I prefer to change my smaller cameras from AR to uvir cut since they require one anyways. Thanks!