58mm Lens Filter Adapter Ring for Canon SX50 SX40 HS SX30 cameras screw in

55.7mm Lens Hood adapter ring plastic screw in unknown brand

54.5mm to 65mm OD Plastic lens adapter ring step-up

58mm adapter Ring for Square holder Cokin size Medium P threaded for lens

42mm OD thread Lens Adapter Ring metal to 27mm ID

42mm T2 Threaded Lens to PK KR Bayonet K / M Camera mount adapter Ring

37mm OD thread Lens Adapter Ring metal to 27mm OD 3.5" long

Tiffen 37mm to 44mm series VI 6 filter Holder Adapter ring with retainer ring

Tiffen #602 40.5mm to 44mm lens adapter ring for series 6 VI filters step-up

Tiffen 40.5mm to 44mm lens adapter ring screw in for series 6 VI filters holder

Ednalite 601 40mm 40.5mm lens adapter ring metal screw in for series 6 VI 44mm

Metal 46mm ID Screw in Lens adapter ring female threads

44mm TO 46MM Macro Reverse Lens Adapter Ring For Miranda F Close-up

46mm threaded Lens Hood or adapter ring

46-58mm Metal Step Up Adapter Ring 46mm Lens to 58mm Filter Converter E46-E58

48mm Lens to Minolta MD MC camera adapter Ring Mount screw in type 48mm

48mm screw in type to series 7 VII ring metal adapter ring filter holder TLR

Used EDNALITE 708 Lens 49mm ADAPTER RING Made in USA 6421017

Pentax PK KR K M Bayonet mount Reverse adapter Ring to 49mm (not threaded) clamp

Mamiya / Pentax m42 Camera mount adapter Ring to 49mm Reverse macro - Genuine

Ambico 49mm Adapter Ring for P series (size Medium M) Square holder ring 84mm

Cokin P series screw in Lens adapter ring for Cokin Square filter holder 49mm 58

Ambico 49mm to 77mm screw in Lens adapter ring for Square 3" filter holder