>>3262618The recessed pinhole cap's epoxy has cured and now the paint is drying. I did some tests. The 55mm UV filter works perfectly for attaching anything 55mm threads will accept. The ring light, protective UV filter, lens caps, etc all work well with it. The ring light is super close to the built-in flash, but clears it. It also causes some flare, so I'll rig up some black foam on the light's inside ring to stop that from happening. I've been needing to do that for my other lenses anyway. With filter glass, over the cap, it looks like some super ultra tin pancake lens.