The Lumix G7 is Panasonic’s fifth model to feature 4K video capture, but is it solely the preserve of video shooters, or does it bring something special to still photographers too? Michael Topham finds out
At low sensitivity settings (ISO 100-400) the G7 delivers clean and detailed images. Luminance noise starts to creep into images at ISO 800, but it isn’t blatantly obvious unless you go searching for it in the shadows at close magnification. Chroma noise also starts to make an appearance in Raw files at ISO 800, but the automated noise reduction that’s applied to JPEG files does a sufficient job of removing it.
The influence of luminance and chroma noise gradually becomes more pronounced as you push up to ISO 3200 and 6400, yet the level of detail preserved at these sensitivities remains high. Provided noise reduction is applied to Raw files at ISO 3200 and ISO 6400, both settings remain useable for less-critical applications.
Detail deteriorates quickly beyond ISO 6400 and although ISO 12,800 could be used as a last resort if you’re caught out in a low-light situation, ISO 25,600 should be avoided at all costs.