It's a well-balanced shot and there's plenty of detail throughout.Īt 3x zoom, the clock tower looks pin-sharp and vibrant.Īt 10x zoom, the image is still perfectly detailed, with lovely contrast and no shift in colors.Īt 30x zoom things don't look so good. Zooming out to the super-wide view, there's little noticeable shift in colors, beyond a bit of magenta tinge in the top right corner. Taken with the standard camera, the phone has captured a rich and vibrant scene, with plenty of detail in the admittedly very shadowy foreground. I began in the beautiful Dean Village, with this classic view looking down the river. And I set out across Edinburgh to see what the phone can do.
More is usually better - 20x should be ample for all but the most demanding zoom users.While I would have liked more headline features for the Galaxy S21 Ultra, what's here is still impressive.
Most consumer camcorders come with optical zooms of between 10x and 20x. The zoom is provided by a telephoto lens. the optics) and does not lose image quality. Optical zoom is provided by the lens (i.e. Remember that digital zoom can be done in post-production with any half-decent editing software, so you really gain nothing by having the camera do it. In theory this should reduce the loss of quality, but no amount of interpolation will prevent loss altogether. Some digital zooms use interpolation, which is a way of estimating the value of the new pixels rather than simply duplicating existing pixels. At large zooms (up to 100x or more) the quality becomes absolutely terrible. At small zooms (up to 20x) the loss may not be too noticeable. The process involves taking a certain number of pixels and creating a larger image, but because the new image is based on the same number of pixels, the image loses quality. This is the same as how a graphics program resizes an image to a larger size. Ignore this spec completely, and if a salesperson tries to impress you with it, find another salesperson.ĭigital zoom works by magnifying a part of the captured image using digital manipulation. It only exists as a marketing ploy to trap unsuspecting newbies. Video stores are full of naive customers comparing the digital zoom of different cameras.ĭo not be fooled! Digital zoom is all but irrelevant. It's common to see a large "150X" emblazoned on the side of a camcorder. This is often trumpeted as a big selling point by manufacturers. The two different types are very different and the unwary buyer can get caught out badly by not understanding how they work. There are two types of zoom on a video camera - digital zoom and optical zoom.
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