Reason:
The marginal benefits of the successor, the reviewer 'The Sorrow' has been described as comprehensive and accurate, that I have nothing to add, is a serious disadvantage: The successor only has a two-fold digital zoom! This means that over the focal length of 720 mm (according to the conventional name) also can not be zoomed, while up to 1440 mm were in the predecessor it.
As many will say, such a huge zoom you do not need and really good pictures would not arise in any case using a digital zoom and also could replace a digital zoom subsequent enlargements'
But I do not accept:
When I look at the pictures that I have done over the years with the TZ61, many with a larger focal length than 720 mm are. All that would have been impossible with the TZ71! And these images are not of poor quality, especially as we indeed speak of a 'travel zoom camera', which implies that in normal use case is a lot of light available and correspondingly low and 'taking into account the excellent image stabilizer' blur-exposure times are possible.
For a while I had TZ71 and TZ61 can parallel and from the outset> 720 mm zoomed TZ61 images comparing corresponding enlargements TZ71 images. The latter did not reach the quality of the former by far. Enlargements asset in this case is not to replace the digital zoom.
The highlight at the end: The TZ71 appears to be a model reserved for the German market. The TZ70, buy one buy in UK, France, but also in Germany, and you have the new model and the usual 4x digital zoom with focal lengths up to 1440 mm!
The relationships are on eg on the Panasonic website United Kingdom significantly, which was taken from the attached information sheet. 'Optical Zoom' and 'Intelligent Zoom' are identical for all three models. 'With the digital zoom' then applies to the TZ71 only the factor 2, or in practice, the factor 0, if the iZoom is activated and exhausted.
Having a high focal length as an option, is of course always an advantage.