Hoya HMC Close-up Filter Set II +1, +2, +4 (55mm) Special effects filters for compatible digital camera lenses at Crutchfield
HOYA ProND16 & ProND32 Grad Filters Review - Christophe Anagnostopoulos
Macro Close Up Lens filter +1+2+4+10 Filter Kit 49mm 52mm 55mm 58mm 62mm 67mm 72mm 77mm for canon nikon sony pentax dslr camera|filter inductor|camera digital filterfilter ford - AliExpress
Hoya 58mm Close Up +4 (HMC) Multi-Coated Lens A58ACUP4 B&H Photo
HOYA PRO1 Digital Close-up No. 3 Filter Review | ePHOTOzine
Hoya 55mm HMC Close-Up Filter Set II, Includes +1, +2 and +4 Diopter Filters A-55CUS-II