Selasa, 22 April 2014

HD camcorders have less zoom then SD camcorders?

Q. ive realized that most HD camcorders have less optical / digital zoom then SD camcorders, why is this?

A. The camcorder lens is one of the more expensive systems on the camcorder... good glass is expensive (and very important when shooting in high definition... perhaps not so important when shooting in standard definition). To keep the costs in line, this is one place that can be compromised.

Personally, when I need it, I just add a 2x tele lens to my Sony HDR-HC1 - it is pretty heavy, though. Since it is impossible for a human to hold steady zoomed in at 20x, 30x or more, for any long period of time, (greater than 10 seconds), it really does not matter - unless you are using a tripod, in which case, the tele-lens works great... or, if you are into really shaky video, I guess it is OK.

If you want to take good video, use the zoom as little as possible and just get the camcorder closer to the subject... but if you must be far away where 30x zoom or more is absolutely required, but sure to use some sort of stabilizing device - like a tripod or mount the camera to something really solid.


Digital still camera v Camcorder zoom?
Q. Would the zoom capability of a Digital still camera with 4X Zoom and a camcorder with 40X zoom be comparable? Does the said camcorder zoom 10 times further than the still camera?
Thanks.

A. There are fundemental differences between the zoom found on still photography camera and the classical video camera. For stills, the zooms works as a quick adjustment to aid in composing a shot or setting focus. Both the zoom and focus is set prior to the picture being taken. In fact many still cameras lock out the zoom function once a video has been started. For a video camera, the zoom is controlled by a smooth and slow servo. The video camera allows both zoom and focus to change while shooting. There are some really cheap "video" cameras that have a fixed lens, and the "zoom" is just an electronic blow up of the center portion of the picture. This is not comparable to the quality of optical zoom.





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