Nikon’s newly released Nikon D4S has a lot of improvements over the D4, including better autofocus, enhanced shooting and fast data processing. The two cameras have the same pixel count and sensor size, with 1.661 million pixels and a newly developed chip, the camera provides a new image processor in Nikon's Exped4. The Nikon D4S autofocus system is quite "tenacious" and also has New focus mode. A new option allows the photographer to choose a focal point, and the camera uses neighboring points to keep the rapid development of a focal point.
The D4 offers an ISO setting of 12800 (expandable to 204800), while D4S is higher, with a maximum ISO setting of 25600 (expandable to 409600). The video function has also been improved, although the D4S only has the same digital SLR camera that drives the color screen, but it can catch up with other processing color video signals. You can use the camera's manual exposure control video mode.
An interesting new feature is D4S's "Original Size Age" option, which captures 12 bits. Half of the NEF file size Nikon's routine is 12 bits. Their uncompressed 12-bit image captures resolution and processing on the computer faster.
Of course, all of these are to pay the price, the new flagship Nikon SLR is priced at about 6000 US dollars.
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