New TZ200/ZS200 review at PhotographyBlog
And what of sharpness in the corners of the frame? A complex lens like this has its work cut out to achieve sharp detail from the centre all the way to the edges. Sadly, corner softness is evident in the TZ200, though it is not anything out of the norm. We would expect to see this kind of softness in other similar cameras too. It’s just the corner detail of the TZ200 is sufficient rather than jaw dropping.
So to summarise this section, we’d say the lens performs best at its wider half and with the aperture as close to f/4 as possible.
In reality, we are not sure how much that extra reach of the lens is worth it. There is a slight pay-off for that extended maximum focal length of 360mm, in the shape of a reduced maximum aperture. Given how image quality drops at f/6.3 and beyond, it is not possible to get the most out of the extended telephoto settings.
When used in its wide to mid-telephoto settings, image quality is excellent. This is backed up by a plethora of shooting modes, including the excellent 4K Photo Mode and a comprehensive video specification, where you can shoot slow motion up to 120fps plus 4K.