When technology makes a step backwards ][.
by Lorence Lombardo  25-Mar-2015
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The height reduction from 4:3 to 16:9 was not a sufficient
technological step backwards for some people.

Now we have 21:9 to choose from.

Anyone who has studied ratios would know that is really 7:3 but it is
called 21:9 so we can relate it to the 16:9 ratio.

Computer monitors that are really 8:5 ratio are also bumped up to
16:10 again so we can relate it to the 16:9 ratio.

But why dont we bump up the 4:3 ratio to 16:12 so again we can relate
it to the 16:9 ratio ?


If you were to purchase all of these screens at a width of 800cm you
would have the following dimensions:-

4:3   =  800 x 600
16:10 =  800 x 500
16:9  =  800 x 450
21:9  =  800 x 343~



Additional 1:1 pixel ratio facts.
by Lorence Lombardo  13-Aug-2015
=================================

1. Multiply the 16:10 height by "1.2" and you get the 4:3 height.

2. Multiply the 16:9 height by (4/3) and you get the 4:3 height.

3. Multiply the 21:9 height by "1.75" and you get the 4:3 height.

   eg. 2100 x 900 is exactly 21:9 (7:3) ratio.
       900 x 1.75 = 1575
       2100 x 1575 is exactly 4:3 ratio. 

       2100 / 7 * 3 = 900
       2100 / 4 * 3 = 1575

       2100 / 21 * 9 = 900



Dimensional and 1:1 pixel ratio conclusions. 
by Lorence Lombardo  23-Aug-2015
============================================

Provided height permits the 4:3 ratio can accommodate all of these
mentioned ratios without any width loss to your specified width.

But on the other end of the spectrum if you were to purchase a 21:9 (7:3)
ratio screen at 2100 x 900 your width losses are as follows:-

4:3   = 1200 x 900
16:10 = 1440 x 900
16:9  = 1600 x 900


eg. 900 / 3 * 4 = 1200