Except that most of the printing we see unless of exceptional quality is
done with a 150 line screen.
Chuck Norcutt
AG Schnozz wrote:
> Dr Flash wrote:
>> I finally think I understand the 300 dpi mystique...
>> ...The 300 dpi requirement comes from offset press printing at
>> 150 dpi using a 150 line screen...
>
> It also has to do with the fact that the commonly accepted definition
> of 20/20 vision is being able to discriminate a spatial pattern
> seperated by a visual angle of 1 minute of arc (MOA).
>
> One MOA translates into approximately 300dpi at 12" viewing distance.
>
> So, supposably, 300dpi is the effective limit for 20/20 vision.
>
> AG
>
>
>
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