NiSi 43mm UHC UV Protection Filter with 18 Multi-Layer Coatings UHD | Ultra Hard Coating | Nano Coating | Scratch Resistant Ultra-Slim UV Filter | NiSi Optics USA
Amazon.com : 40.5mm UV Filter for Sony Alpha ZV-E10, A5000, A5100, A6000, A6100, A6300, A6400, A6500 Camera with Sony 16-50mm Lens, Alpha A7c with 28-60mm Lens : Electronics
21 UV & protection filters are put to the test and the results are rather surprising
UV Protector Filter - 25UVP – The Tiffen Company
Are the use of UV filters really that bad? - PentaxForums.com