Playing aroung with the NEX-7 Precision Digital Image Zoom. This is not the same as on the newer Cybershots / SLT / NEX's cameras which Sony called Clear Image Zoom.
Here are some sample shots and I must say that it will do especially if you don't have a lens >100mm focal length.
Lens used is the Minolta AF 100/2 attached to the LA-EA2 adapter. Camera was set to AutoWB, Neutral and STD-JPG, f/8.0 and 1/125 shutter speed.
|No Precision Digital Image Zoom|
|Zoom set to 5x|
|Zoom set to 10x|
With a bit of sharpening in Photoshop (or editing software of your choice), you can definitely sharpen the images and bring out more details.
Personally, I won't hesitate using the Precision Digital Zoom if needed.