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B+W 40.5mm Circular Polarizer SC Lens Filter by Schneider Optics at B&C Camera
Hoya 40,5mm Digital Filter Kit II (3 filters) - Photospecialist
Hoya 40,5mm UV Prime-XS - Photospecialist
40,5mm IR720 Infrared Filter Ir Filter 40,5 MM Ir 720 dHD Digital Pass Filter 4255696811553 | eBay
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Adapterring f. Rollei Rolleiflex Bay. II to 40,5mm Filter | JO GEIER - MINT & RARE
Canon Camera Filter Set | Camera Lens Filter Set | Canon Camera Full Set - 40.5mm 43mm - Aliexpress
Coronado by Meade | SolarMax II 40mm Solar Filter set with RichView tuning and 5m – Cloud Break Optics
dHD Digital Brands CPL Filter Polarizer 40,5mm Polarisation Filter 40,5 MM 4403004935006 | eBay
NiSi 40.5mm Adapter for NiSi M75 75mm Filter System - ColorTexturePhotoTours
HELIOPAN Linear Polarizing Filter - Diameter: 40,5mm - fotoimpex.com analogue photography
Hoya 40,5mm Pro1 Digital UV Filter 24066040756 | eBay
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Promaster 40.5MM UV Filter
2en> C-pol Circular Nisi Cpl, 40,5mm Circular Polarizer Lens Filter, 43mm, 46mm, 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, <2en> - Camera Filters - AliExpress
40.5mm-49mm 40.5-49 Mm 40.5 To 49 Step Up Filter Ring Adapter For Canon Nikon Pentax Sony Camera Lens Filter Hood Holder - Lens Adapter - AliExpress
Thorlabs - FBH051550-40 Bandpass Filter, Ø12.5 mm, CWL = 1550 nm, FWHM = 40 nm
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NiSi 40.5mm HUC IR Neutral Density Filter ND64 (1.8) 6 Stop - ColorTexturePhotoTours
Solar Film Filter 40.5mm
Amazon.com : Hoya 40/5 mm Pro1 Digital Polarised Circular Filter for Lens, Black : Electronics
Amazon.com : Hoya 40/5 mm Pro1 Digital Protection Filter for Lens : Electronics
