On Wed, Mar 11, 2009 at 3:21 PM, Asif Lodhi <asif.lodhi at gmail.com> wrote: > Hi Jeffrey, > > On 3/11/09, Jeffrey Silverman <jeffrey.d.silverman at gmail.com> wrote: >> <snip!> I also suspect many don't understand the difference between optical >>> and digital zoom. >> >> There is a difference? > > Optical zoom: zooming rotating the *physical* knob around the lens. > Digital zoom: mathematical estimation (interpolation) of the next zoom > level of image size. > > Correct me if I am wrong, please. > > -Asif
Sorry, that was my EXTREMELY dry humor[1]. I actually know what the diff is. and yes, you are way wrong: optical zoom is when the lens diffraction rate is 0.5 times the distance to the optical interference, resulting in noticeable noise, and digital zoom is when the lens is circumvented through reverse interpolation of the optical megapixels. Someone may be interested in expanding on some of the minor details, but that is a good overview. [1] as in "Not Actually Funny(TM)" or "Funny Not Included" -- JDS
