The ISO range of both Camera touches same high ISO range, take a look at the Image below and share your toughts with us.
We like the performance of Nikon D610, since the D610 is showing more details in both the test images and the Sony A7 image at ISO 25600 is almost flat and have not details and no noise… so we recommend you to go with Nikon D610.
Sony implemented very strong noise reduction filter and hence we are having very less detail at High ISO range.
Buy Canon Nikon D610 from Amazon || Buy Sony A7 from Amazon
Image credit – www.imaging-resource.com