2002-12-08

I sent this to dpreview feedback page.  I hope someone reads it and corrects
the error:


2002-12-08

Sir,

Your article referenced in the link below:

http://www.dpreview.com/news/0209/02092410olydak43inch.asp

has a bogus error appearing throughout the article.  You are referring at
times to the standard as being a 4/3 INCH standard, instead of just a 4/3
standard.  The 4/3 is an aspect ratio, not a dimension and is thus unitless.
It could mean 4/3 inch per inch or even 4/3 metre per metre.  The units
cancel out and the result is unitless.  All standard TV sets use this ratio.
It means the horizontal distance of the tube is 4 units long for every 3
units it is high.  It makes no difference what the units are.

Here is proof:

The Four Thirds System
November 1, 2002

In September, Olympus and Kodak announced they were proposing a new digital
SLR camera standard for all digital SLR camera manufacturers to consider.
Olympus dubbed it the Four Thirds System (4/3 System) based on the aspect
ratio of the image sensor proposed. We welcome this new standard and the
fact that Olympus is trying to forge an agreement among the major camera
manufacturers to come up with digital SLR standards.

You can see the article here:

http://www.photoxels.com/news_FourThirds.html

Please correct your error by removing all references to the word inch that
appear in your article.

Thank You,

John




> I finally learned about where the name "Four Thirds" of the new
> Olympus/Kodak digital camera optics standard came from.
>
> http://www.dpreview.com/news/0209/02092410olydak43inch.asp



John

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