I am renting the ZS100 for a week & used it for a concert arena & then later for a club to see how it performs.
I will be checking HD 60 & 4K modes as well as the I.Zoom just in case I need the extra reach to see if there is any noticeable
degradation on quality.
Last night for Boston at The Seminole Hollywood Hard Rock I did several test with HD & 4K modes & I Zoom.
This song was filmed in HD used just the 28 to 270 zoom. ISO 400 Exposure - 1/2
https://youtu.be/Ku3f-4b7WgoThe 4K zoom is 37 to 370 because of the crop factor.
4K time linit is 15 min and HD record time is 29.59
The 15.00 minute 4K recording time limit is a hassle as some bands just simply go into a second or third song and it gets close
as you want to stop & start quickly without music loss.
Here is the 4K song I did. ISO 400 Exposure - 1/2 - No iZoom just 37 - 370 4K crop zoom.
https://youtu.be/9UsFMZGo0Ew(Takes YouTube a little bit to get full resolution uploaded.