Originally posted by cport In terms of the image quality (ISO etc.) - KP and K-70 are the same. I thought that K-70 is better for video due to AF sensors placed on the image processor.
Neither of those have the same impact as the difference in the data rate in the CoDec.
The K-70 has the same 19Mbits rate as the rest of Pentax family (when set to maximum quality)
The KP got a data rate of 24Mbits, which directly affects the way the CoDec deals with signal noise, especially in higher ISO's.
At 3200 in most Pentax bodies, the noise that's "film like" in a still image, becomes a blotch of nasty colour around any noisy pixel in the image. But the extra data rate in the KP means it's colour blotching at 3200 is similar to that of the rest of the bodies at 800 or 1600.
In good lighting, it means that at lower ISO's, the colour in the KP's image is going to be a lot more accurate then the K-70.
With my Cinematographer hat on, out of all the currently available bodies, for recording internally, the KP is the ONLY body I would buy.
For external recording, none are currently suitable (and we've been providing feed back on that for the last Seven Years), but a firmware fix would make everything from K-01 to K-1 and 645Z in to awesome production tools.
Recordable HDMI output, preferably at 10 bit for HD and 4K, is pretty much "minumum acceptable specification" for any brand of DSLR or Mirrorless in 2019-2020. If the new prototype showing one Pentax stands now doesn't include it, they should go back to making film cameras for the luddites, as they don't understand the digital market.