Cleaning Hoya Filters.How to Clean a Hoya Filter.
CLEANING YOUR FILTERS:
Due to their high precision, filters should always be handled with care and kept clean whenever possible. Filters should be cleaned gently with just a lens tissue or soft cotton cloth.
Hoya's Recommendation Hoya recommend that you NEVER use any chemicals, such as lens cleaning fluid, on your filters, as these can damage the coatings. If any stubborn stains occur, these can usually be washed off with some clean water and a soft cotton cloth.
For stubborn or greasy marks liitle liquid hand soap, or diluted dish washing liquid could be used in conjuction with a soft non abrasive lens cloth. It is worth noting that some types of filters, particularly multicoated ones may be more difficult to clean, and their coatings be easier to scratch or damage than non-multicoated filters.
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