Nikon D4S full frame camera body (Pre-owned)

The D4S has 30% more computer power than the D4 to allow more noise reduction faster to add a foolish setting of ISO 409,600 (up from 204,800 in the D4), and enough other small tweaks to give 11 frames per second with full autofocus and metering for each frame, up from 10 fps in the D4.

6 preset white balances, up from three. These are for when you have to set a hard manual white balance for weird light, and you can never have enough of these presets.

New spot white balance trick: use Live View, select PRE white balance, hold the WB button until the PRE icon blinks on the rear data LCD. You'll see a small rectangle where you had the AF zone selected (you can press (+) to zoom-in). Press the center of the multi-selector or press the shutter button all the way. If it worked you'll see "Data Acquired." press OK or WB to get back to taking pictures. If it didn't you'll see "Unable to measure..." and you need to try again.

It now shoots up to 59.94p or 50p video at 1920x1080, up from 29.97p. Audio with video now has a Voice or Music frequency response setting.

RAW S offers a new uncompressed 12-bit mode.

New Group Area AF mode.

Now you can turn off Face Priority AF in a custom setting if you like for regular shooting.

There is now a tweak for LCD color. That's bad news; Nikons never used to need tweaking because they were correct as shipped.

Full-aperture Live View metering.

Intervelometer now goes to 9,999 shots from 999.

EN-EL18a rated for 3,020 shots, up from 2,600.

The old XQD slot problem has not been fixed; it's still an XQD and not a CF or SD slot.