Originally posted by jogiba There is zero chance of a Pentax FF with sensor cartridge system. How about a pill that turns water into gasoline ? Same chance.
Actually there are machines that turn sunlight/electricity, water and CO2 into gasoline.
The K-3/K-30/K-50/K-01 SR also introduces a lot of wobble into the stable video (top part of the video stays stable, lower parts of it move around in a funny way), and there are random light streaks and blurriness all the time.
The tracking problem stems from the camera not using the sensors built in to find out how it has to stabilize the video. It is relying on software only (which is included in the Milbeaut processor Pentax and Nikon use... and guess what, Nikon doesn't even give the option of using it, because it is that useless). So it is easy to trick the system. Pentax has a system inside the camera that works (you can even use it in live view), yet choses to deactivate it and to use the junk that a manufacturer that has no alternative won't use.
Electronic SR does NOT work. Ever. Unless you throw ridiculous amounts of processing power at it. Sony does a better job, but to call it acceptable would still be quite a stretch. Basically you'd need to have a processor that is able to analyse the movement of the camera in order to remove the rolling shutter effect (Sony seems to be able to do this to a certain degree, or their a57 has ridiculously little rolling shutter to begin with), and that is also able to take this data to calculate how the camera was shaken and reconstruct the actual image from it. i.e. take a photo that was shaken (motion blur in random directions) and reconstruct a sharp photo from it. 24 to 60 times a second. This feature exists in Photoshop AFAIK, but takes a long time on very fast processors. We'd need thousands of the latest i7 Haswell chips inside our cameras to do that fast enough.
It's not just the bitrate, the encoder, at least on early firmware versions is buggy, creating ugly artefacts even though the bitrate for that particular scene should be high enough. I've heard that was fixed silently. Lots of detail and movement will create a mess though, while the K-5 will handle those scenes beautifully.
Powered zooms in the SLR market were a bit of an oddity, weren't they? I did shoot film too, but never had a camera that could do it, or a lens that could. To be honest while it might be useful sometimes... I don't think I would use it. For video yes, it'd be great there.
Higher resolution sensors have also produced 4K video, though yes, around 12 MP seems ideal.