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Learning the f-stop table

This was how someone told me - You only have to remember two numbers; 1 and 1.4. Double each one alternately and you will have two series:
1, 2, 4, 8, 16, 32 and 1.4, 2.8, 5.6, 11, 22
So, combining the two sequences in numerical order gives the full sequence:
1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32
1, 2, 4, 8, 16, 32 and 1.4, 2.8, 5.6, 11, 22
So, combining the two sequences in numerical order gives the full sequence:
1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32

Quote:The problem, Ian, is rounding. The sequence should really be:
... 4, 5.6, 8, 11.2, 16, 22.4, 32, 44.8 ...11.2 is expressed as f/11; 22.4 is expressed as f/22; and 44.8 as f/45.
Erhm...
The sequence is each number multiplied by 1.4142135623730950488016887242097 to get the next f-stop
which is roughly this:
HERE
forget the 1/4, 1/2 & 3/4 stops on that table.
That should help I think... :o)