Nikon D4s Key facts

NPhoto - - Test Team -

Im­age sen­sor

An up­grade from the D4’s, this new sen­sor is de­signed to give faster data out­put, bet­ter dy­namic range and re­duced im­age noise at high ISOs. The im­prove­ment in high-ISO im­age qual­ity is en­hanced by the EXPEED 4 pro­ces­sor, although the megapixel count re­mains the same, at 16.2.

Aut­o­fo­cus

An up­dated edi­tion of the 51-point Mul­ti­CAM 3500 AF mod­ule en­sures su­per-fast aut­o­fo­cus ac­qui­si­tion. The new Group Area AF is par­tic­u­larly use­ful, en­abling con­tin­u­ous AF to track fast-mov­ing ob­jects even when used in con­junc­tion with the ul­tra-rapid max­i­mum drive rate.

Con­tin­u­ous shoot­ing

The 11 frames per sec­ond max­i­mum burst rate is ac­tu­ally no faster than on the D4, but the D4s makes aut­o­fo­cus and me­ter­ing pos­si­ble on a frame-to-frame ba­sis, even at this su­per-fast speed. It’s a bonus when track­ing fast-mov­ing tar­gets.

Me­ter­ing mod­ule

One sim­i­lar­ity to the D810 comes in the shape of the 91000-pixel 3D Colour Ma­trix III me­ter­ing mod­ule. Live View me­ter­ing op­tions in­clude full-time face recog­ni­tion com­plete with sub­ject track­ing, for bet­ter re­sults when shoot­ing se­quences of stills or movies.

Con­struc­tion

Built to with­stand the most de­mand­ing con­di­tions, the durable mag­ne­sium al­loy body is fully weather sealed. It’s a hefty beast, weigh­ing in at 1.35 kilo­grams, but its size and weight are sim­i­lar to that of, say, a D810 body with an ad­di­tional MBD12 bat­tery/ver­ti­cal grip fit­ted

Need to know

To en­able the rapid con­tin­u­ous shoot­ing speed and smooth im­age qual­ity at high ISOs, there has to be a sacrifice. Bar­ring the el­derly 12.3-megapixel D90 and D300s DX-for­mat cam­eras, the D4s and D4 share the low­est megapixel count of any cur­rent Nikon D-SLR, along with the Df.

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