What is better 25x optical zoom or 60x optical zoom?

Answer 1

It depends what we mean by "better". Certainly 60X zoom gives much greater image magnification, but this can be of limited usefulness for photographic purposes as image quality is often sacrificed to provide the extra focal length. This is especially true towards the more affordable end of the market. In addition, zoom lenses don't just magnify the viewed/recorded image, they also magnify any trace of "camera shake" by the same amount. It is notoriously difficult to hand-hold lenses of very long focal length steady enough to provide decent images, and even a tripod mounted device will be prone to wind or floor vibrations. Broadly, for professional purposes and with a large budget, a 60X optical zoom is more versatile than 25X, but unless you really need and can afford the extra "pulling power" you might be better off with a 25X zoom, which still offers a very respectable magnification.