An optical attachment (59) that is fittable to a portable electronic device having a camera and a flash, the attachment comprising: a housing (61, 65, 69) defining a lower surface (73) configured to be proximate an electronic device when the optical attachment is fitted thereto, and an upper surface (63) that defines a port (71) through which light can travel； a lens holder (87) provided within said housing, said lens holder having a bore in which a lens (89) is located, the lens holder being configured to be proximate a camera port (77) in said lower surface (73) of the housing that is configured and arranged to be proximate to the camera of the portable electronic device when the optical attachment (59) is fitted thereto； a tubular cowl (91) extending from the lens holder and within said housing, the cowl (91) being operative to reduce the amount of light entering the camera from sources other than a subject being illuminated； and a solid lightguide (99) provided within said housing, the lightguide being configured to reflect light emitted by said flash so that said light extends from the port (71) in the upper surface (63) to illuminate a subject, the lightguide having tubular top (109) and mid (111) sections that cooperate to define a bore (121) in which a part of said cowl (93) is located, the lightguide (99) having a leg section (113) that extends from said mid-section (111), and a foot section (117) that extends from the leg section (113), the foot section (117) including a planar sole surface (119) configured to be proximate to a flash port (75) in the lower surface (73) of the housing, said flash port (75) being proximate the flash of the portable electronic device when the optical attachment (59) is fitted thereto, said top section (109) including an exit surface (123) remote from said mid section (111) that is configured and arranged to reduce the extent to which light emitted from the lightguide (99) is dispersed..Cette invention concerne un accessoire o
