With a digital zoom of only 1 times zoom factor, the Nikon D300S has one of the smallest digital zooms amongst cameras of this age. The smallest digital zoom of digital cameras of this age and type is 0.71x, the biggest is 14x, and the average digital zoom is 4.1x.
We compared all the other 1x digital zoom digital cameras to this digital camera and we think the Nikon D3000 + AF-S DX NIKKOR 18-55mm which has better reviews is also worth considering.
Digital cameras with a bigger digital zoom that might be worth considering include the P300 (2x and higher rated), or the P330 (2x and higher rated) both from Nikon.
What does "digital zoom" mean?