I recently came across Purosol lens cleaner on Edmund Optics site. It's also at Amazon: http://www.amazon.com/Purosol-Natura...ywords=purosol

I ordered some to give it a try. Normally, I use ROR.

In addition I picked up some cleaning cloths: http://www.amazon.com/MagicFiber%C2%...FJXTQ13TKC5MWE

I avoid cleaning lenses, unless they are really dirty. I have a few lenses that have been sitting for years, though, and they needed a good cleaning, as I'm almost ready to install my 8x10 portrait camera in my studio.

I used the following method:
1) I used a foot operated air pump to blow off dust,
2) I used a soft brush to get rid any stubborn dust,
3) I used Purosol on a scanner wipe to apply the cleaner to the glass, turning the wipe so that one area wasn't dragged all over the lens.
4) I used the micro fiber cloth to finish the cleaning.

This procedure worked very well. I prefer the Purosol to any other cleaner that I've used.