Abstract: An apparatus for altering quantum of light passing through a lens of a photographic device. The apparatus comprises of a base assembly configured to be detachably coupled to the lens of the photographic device, a first assembly comprising a first filter, a second assembly comprising a second filter and a third assembly comprising a third filter. The first assembly is configured to be detachably coupled to the base assembly. The second assembly is configured to be detachably coupled to the base assembly. The third assembly is configured to be detachably coupled to the base assembly. Combination of the first filter and the second filter forms a first range of neutral density filter and combination of the first filter and the third filter forms a second range of neutral density filter.

Abstract: An apparatus for altering quantum of light passing through a lens of a photographic device. The apparatus comprises of a base assembly configured to be detachably coupled to the lens of the photographic device, a first assembly comprising a first filter, a second assembly comprising a second filter and a third assembly comprising a third filter. The first assembly is configured to be detachably coupled to the base assembly. The second assembly is configured to be detachably coupled to the base assembly. The third assembly is configured to be detachably coupled to the base assembly. Combination of the first filter and the second filter forms a first range of neutral density filter and combination of the first filter and the third filter forms a second range of neutral density filter.

Abstract: An apparatus for detachably mounting filters onto a lens of a photographic device is provided. The apparatus comprises of an adapter assembly and a filter assembly. The adapter assembly comprises a first main frame with a first threaded portion and a second threaded portion, and a first engagement member with magnets disposed towards the second threaded portion. The filter assembly comprises a second main frame with a third threaded portion, a filter, and a second engagement with magnets disposed towards the third threaded portion. The adapter assembly is configured to be received by the lens of the photographic device. The filter assembly is configured to be received by the adapter assembly. A lens cover provided with a ferro magnetic material may be configured to be received by the adapter assembly or the filter assembly.

Abstract: A filter mounting device for a camera. The device comprises a first filter, a second filter, a third filter and a holder assembly. The periphery of the first filter and the third filter has circular configurations with different dimensions. The periphery of the second filter comprises a pair of first edges that are parallel to each other. The holder assembly comprises a frame configured to accommodate the plurality of filters. The frame comprises a first filter receiving portion and a second filter receiving portion. The first filter receiving portion is configured to receive the first filter. The second filter receiving portion is configured to receive the second filter via a first slot. The first slot is defined on the frame along a direction perpendicular to a vertical axis of the frame.

Abstract: An apparatus for altering quantum of light passing through a lens of a photographic device. The apparatus comprises of a base assembly configured to be detachably coupled to the lens of the photographic device, a first assembly comprising a first filter, a second assembly comprising a second filter and a third assembly comprising a third filter. The first assembly is configured to be detachably coupled to the base assembly. The second assembly is configured to be detachably coupled to the base assembly. The third assembly is configured to be detachably coupled to the base assembly. Combination of the first filter and the second filter forms a first range of neutral density filter and combination of the first filter and the third filter forms a second range of neutral density filter.

Abstract: An apparatus for detachably mounting filters onto a lens of a photographic device is provided. The apparatus comprises of an adapter assembly and a filter assembly. The adapter assembly comprises a first main frame with a first threaded portion and a second threaded portion, and a first engagement member with magnets disposed towards the second threaded portion. The filter assembly comprises a second main frame with a third threaded portion, a filter, and a second engagement with magnets disposed towards the third threaded portion. The adapter assembly is configured to be received by the lens of the photographic device. The filter assembly is configured to be received by the adapter assembly. A lens cover provided with a ferro magnetic material may be configured to be received by the adapter assembly or the filter assembly.