Only ever use a wipe designated for wiping lenses. But NEVER overuse even a designated wipe. They will remove the lens coating that is for anti flare as well as assisting the transmission of light. A friend of mine used to wipe a lens he used all the time, and in 3 years the coating was gone. This was a Sigma lens. He returned it to Sigma who kindly offered to sell him a new lens with a huge discount or they could replace the front element (for a fee). I carry wipes with me but almost never use them. I use a puffer/blower now and again but unless the lens has a fingerprint or grease mark on it then try to avoid wiping.