New answers tagged cleaning
The only way i've ever managed to clean them successfully is by washing them with hot water and a good detergent. The detergent cuts through the grease and you don't need to use a cloth - just your fingers. Then i run it under very hot water to heat up the glass and this helps it dry with no water marks. Works every time.
Multi-coated filters are notoriously difficult to clean. The formulations of most lens cleaner fluids tend to smear on the materials coating the filter. Microfiber cloths are dangerous because they hold dust very well. While they won't deposit the dust already in the cloth on the filter, this can allow the dust trapped in the cloth to scratch the filter. It ...
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