i am new to photography and dslr
but i understand enough to know that the smaller the f number the wider the apperture
and better options when taking pictures
the problem i have with the f number is the way they are displayed.
what everyone seems to care to talk about is 1.2 2.3 3.0 and
whatever has a number a period and a number 0.0
what is the difference between 1:4 and 1.4 usually displayed as 1:4 - 5.6
why the Colon instead of the period?
and what is the 5.6 representing?
Read more: What is the difference between the f numbers in the DSLR lenses?