It’s nice to see some progress with the Nikon’s professional “action” camera, and a brave decision to not increase the pixel count of the sensor.
Perhaps, video capabilities is the major upgrade. Video bit rates up to 1080@60p is a good addition, but limiting video stream to 42Mbps (10 min limit), and 24Mbps (20 min limit) is not. The D4s can now adjust audio volume as it records, which is good. Unlike existing Nikons, the D4s can now simultaneously output uncompressed video over HDMI and record to internal memory cards –great.
However, I’m asking myself, with all those D4s video improvements, why not to add a 4K video, like in Panasonic GH4?
Why not to add a silent shutter, an electronic one or a rolling shutter? Many of Nikon D3/D4 are used in external-noise-sensitive environments, such as theater/public performances, etc.
Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.