Talk:Digital zoom
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[edit] Benefits of digital zoom
I'm not sure enough of these things to add it to the article, but isn't it the case that digital zoom isn't all bad?
- Digital zooming should do the resizing/interpolating before any jpeg compression. With a low quality setting, this could make a big difference.
- Aren't all images already interpolated to an extent (except in some cases, like images made with cameras with the Foveon X3 sensor)? If that is so, it should theoretically be the case that the digital zoom could do a better job at resizing/interpolating than an external tool, as it has additional information about the specific sensor grid. Is this actually being used by cameras, or do they indeed really only resize using the usual interpolation methods on an image after it has been made without digital zoom?
[edit] How do I compare zoom
What is the comparisn between zoom mentioned as 2x 3x or 12x, and zoom mentioned as 35- 105 mm zoom? can anyone please explain.
- 35–135 mm is the ratio 135/35, or almost 4X zoom range. The two specs tell you different things; you can convert one way, from a 2-valued specification to a single ratio, but not back. Dicklyon 16:02, 1 February 2007 (UTC)
- That's correct. --Stybn 06:58, 5 February 2007 (UTC)
