sys­tem spot­light Dis­cover the X-fac­tor

Rod Law­ton lays down the facts about FX and DX for­mats

NPhoto - - Nikon Skills -

Nikon makes D-SLRs with two dif­fer­ent sen­sor sizes: FX and DX. FX sen­sors are the same size as 35mm film, but they are more ex­pen­sive to make. This is why most en­thu­si­asts use the smaller DX-for­mat mod­els. The DX sen­sor is about the same size as the old APS-C film for­mat – in fact, these sen­sors are some­times re­ferred to as ‘APS-C’ for­mat.

To go with these sen­sor sizes, Nikon makes both FX and DX lenses. FX lenses fit on both types of cam­era, but are of­ten large, heavy and ex­pen­sive. DX lenses are solely for cam­eras with DX sen­sors. They project a smaller im­age cir­cle to cover the smaller sen­sor, but they’re lighter and cheaper. If you have a DX Nikon, DX lenses are the most cost-ef­fec­tive buy, but if you plan to move up to the FX for­mat, you’ll need to swap over to FX lenses.

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