Abbreviation: DX = "APS-C format for Nikon" (Nikon)

The abbreviation DX means "APS-C format for Nikon" and is seen on Nikon products.

Explanation from Nikon

Nikon digital SLRs have either an FX or a DX sensor. The FX sensor, measuring 24x36mm, is roughly equivalent to the size of the 35mm film frame. The DX sensor is smaller, measuring 15.8x23.6mm. DX-NIKKOR lenses are engineered and optimized for use on Nikon DX-format D-SLRs and are designed to cover the smaller image area of the DX sensor. When a DX lens is mounted on an FX-format Nikon D-SLR, the camera’s DX-Crop Mode is automatically engaged, introducing a 1.5x magnification (cropping) factor.

See examples of effected products

	Nikon AF-S DX 18-55mm F3.5-5.6 G ED VR
	Nikon AF-S DX 10-24mm F3.5-4.5 G IF-ED
	Nikon AF-S DX 85mm F3.5 G ED Micro VR

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