Originally posted by lesmore49 I've never used a lens pen. I've had the chance, but I still stick to the old air brush with the horse hair, lens cleaning fluid and lens cleaning tissue. It has worked for me, for 52 years...so why change ? Unfortunately the old way of doing stuff is getting harder...as it is harder to find.
Air brush with horse hair? I've used Zeiss wipes, but sometimes it leaves residue. Even the lens pen leaves residue. Best way to test it out is after cleaning with either one turn on the flashlight on your phone, and shine it underneath the rear element of your lens. I've used a lens brush as well. I find that a large rocket dust blower works better for dust related issues. Microfiber cloths tend to add more dust from my experience with various brands.
Thinking about setting up a hepa air purifier in my display case to absorb any dust in the air. I also like keeping a few silica packets around to prevent any potential fungus investations.