This B+W lens cleaning set is made to clean any type of obstinate dirt from the lens. Dust and fingerprints effect the quality of the image so this cleaning kit is manufactured to keep the lens and the filter clean. Dust and stains retards the amount of light falling on the filter lens thus effecting the the quality of the outcome image. In order to get clear image of the object the lenses or filters should be kept clean regularly and it is necessary for an active photographer.