I'm not sure as I just bought mine recently, but I believe you may be able to do it by pressing the + button just to the right of the info screen. The same button you would use to zoom in during playback mode.
I found that you can zoom in before you take the picture, it just won't take it. It will be a normal full size picture. I was wondering the same thing.
Fellas, digital zoom = cropping. Just crop as much as you want using whatever photo editor you want on either your PC or smartphone or tablet. Pressing the zoom buttons in Live View magnifies the image for easier manual focus; nothing else.
Digital zooms sometimes resample to avoid the jagged appearance of aliased edges, but so do many software programs when cropping. Even the freeware Irfanview includes a set of resampling options. I would not count on in-camera algorithms to do any better, and in any case it's hardly a problem unless you're cropping quite deeply.
Edit to add: just to test, I did a comparison with my little Fuji pocket camera. This is a pretty decent small waterproof camera with both optical and digital zoom, which clearly interpolates digital zoom.
So I took a picture with optical zoom all the way out and then of the same subject with digital zoom added, both on a little Gorillapod with self timer. I went through a series of crops from matching the two images to a part about 300 pixels wide out of the original 4400. The images remained essentially the same. The program I used (Irfanview) resamples crops. The final images I compared were far and away too small and fuzzy to be worth anything, and both were clearly interpolated with no pixel jaggies. My verdict is that anything approaching a decent post processing program will do as good a job as in-camera digital zoom, and you should not worry one more moment about it.
Comments
Pressing the zoom buttons in Live View magnifies the image for easier manual focus; nothing else.
Edit to add: just to test, I did a comparison with my little Fuji pocket camera. This is a pretty decent small waterproof camera with both optical and digital zoom, which clearly interpolates digital zoom.
So I took a picture with optical zoom all the way out and then of the same subject with digital zoom added, both on a little Gorillapod with self timer. I went through a series of crops from matching the two images to a part about 300 pixels wide out of the original 4400. The images remained essentially the same. The program I used (Irfanview) resamples crops. The final images I compared were far and away too small and fuzzy to be worth anything, and both were clearly interpolated with no pixel jaggies. My verdict is that anything approaching a decent post processing program will do as good a job as in-camera digital zoom, and you should not worry one more moment about it.