Bests & Worsts Reviews from Amazon

I wanted to like these cloths, but they all seem to leave a film on my optics and in a couple of instances, micro abrasions on some expensive telescope eyepieces. When I clean optics, I start with an air puffer, then a soft brush, then zeiss optical cleaning wipes, and then finish with a soft wipe of microfiber. I am very careful in my cleaning process, yet somehow these cloths always leave a film or in some cases, will cause a scratch. You might not notice that these are scratching your optics until it is too late-- look closely!