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Hoya 62MM 81A HMC Decrease Color Temperatures Filter
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Another slide film filter comparison : r/AnalogCommunity
Hoya 58mm Standard 81A Warm Filter
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Amazon.com : Hoya 72mm 81C Warming Multi Coated Glass Filter : Camera Lens Color Correction And Compensation Filters : Electronics
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General Purpose of 81A Filters ? - PentaxForums.com
Hoya 55mm Filters Set of 4 Diffuser 85B 81A and 81B - Etsy
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Hoya 81A (B5881AGB) 58 mm Filter 24066004109 | eBay
Hoya 52mm 81A Warming Filter | eBay
Hoya HMC 55mm 81A Multi-Coated Warming Filter Made in Japan A-5581A-GB – EventCameras
Hoya 81A 95mm Filter
Hoya 58mm Standard 81A Warm Filter
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Hoya 81A (A7281AGB) 72 mm Filter 24066001160 | eBay
General Purpose of 81A Filters ? - PentaxForums.com
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