Awhile back, I've been reading up on how to properly clean lenses on Photo.net. So I went and got myself a basic lens cleaning kit with the solution, cloth and tissue wipes.
However, I noticed that when I use the solution, it tends to leave stains on the glass which even the tissue cannot remove. The stains look like oil.....so I thought that the solution which I was using was not good.
Finally I decided to go down to Cathay and with their recommendation, I bought a bottle of Eclipse solution made by Photographic Solutions Inc. in the US.
After cleaning my lens, it seems that the problem is still there: the oily streaks. Basically after cleaning the glass look clean and clear, but if I were to use a torchlight to illuminate the glass, you can clearly see the streaks.
Am I doing something wrong? I've also tried using less solution, but the problem still persists......have any of you guys encountered this problem? Should I get my lens cleaned professionally and lean from them?