Digital BW, The Print

Hi Frank,
I know you got the 2.55 X the percentage formula for conversion to the 8 bit grey scale. What is even worse than flat spots, is a reversal in shading. I've sure done that many times in my experiments. They lead to strange solarized photos.

58% = 148
59% = 150

67% = 171
68% = 173

etc.

Greyscale step = ( 2.55 * percentage ) 

Best,
Alex

--- In DigitalBlackandWhiteThePrint@y..., "frankg_photo" <frank@f...> wrote:
>>
> But the sep tablet i printed is in 0-100% points - so how do I find 
> the flat points - how to convert them to the input and then output 
> number(58/59%, 67/68%, 78/79%, 85/86%, 87/88%, 92/93%) ?
> 
> Hope I'm making sense ?
> frankg