The new RX10 doesn't have a built-in ND filter? Someone mentioned this in another thread. I thought my original RX10 had one. Downer. I don't want to stack filters.
Yes, there was a thread on this subject earlier. Some reviews of the camera have noted the absence of a built in ND. And the spec sheet for the camera on Sony's website clearly shows that it is missing.
This is a real pain for anyone that wants to be able to quickly and easily switch between shooting stills and shooting video. With both the Mk I and the Mk II, it is so fast and easy to do. I have one of my custom buttons set up to go directly to the ND filter setting, so I can just about instantly toggle it on or off, when I switch between shooting stills and video. Very handy feature for people that shoot video.
I have another one of my custom buttons set up to go directly to Audio Record Levels. That makes adjusting the volume of the audio being recorded on your video real easy to do while recording.
I will keep my RX10 as a backup. For the RX10II or MIII, whichever I buy (and I'm still thinking about which one), I may buy a filter. Perhaps I will buy both the RX10II and RX10III and sell my RX10, as well as my m43 stuff.
My theory is that the lens retracts so far into the body that there just wasn't room for the ND filter. Look at how much the lens extends when the camera is switched on - it's almost 4cm. Measure 4cm back from the rear of the lens and you're less than 1cm from the sensor index marker.