[scribus] OT: Interesting Camera/Mega-Pixel Article

John Beardmore John at T4sLtd.co.uk
Wed Mar 11 23:35:07 CET 2009

Jeffrey Silverman wrote:

> 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,


>  Someone may be interested in expanding on some of the
> minor details, but that is a good overview.

Someone may be interested in explaining the first one ?

Cheers, J/.
John Beardmore, MSc EDM (Open), B.A. Chem (Oxon), CMIOSH, AIEMA, MEI
Managing Director, T4 Sustainability Limited. http://www.T4sLtd.co.uk/
Energy Audit, Carbon Management, Design Advice, Sustainable Energy
Consultancy and Installation, Carbon Trust Standard Registered Assessor
Phone: 0845 4561332   Mobile: 07785 563116   Skype: t4sustainability

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