803Re: [PPLetterpress] Re: correcting ink spread
- Aug 14, 2002on 8/14/02 1:13 AM, bielerpr at bieler@... wrote:
>Hey Gerry, (or should I say, Gerald?)
>> Gerald and Erik,
>> This may sound a bit too easy, but I have found that unsharp masking
>> (usually twice at 500%) is the one filter that really seems to open up a
>> line image for good letterpress printing.
>> are there any other filters that you can recommend ?
> Hi Mark
> The unsharp mask is quite useful, in some situations, maybe most, but
> it most usually is one of the last filters you would use in a
> sequence as it is clearly a "demarcation" filter. The movement is
> from "fuzz" to clarity. Introduce clarity too soon and you have to
> retrace your steps.
> Problem with most of these filters is they really need to be used in
> combination and seqsuence. Lot of experimentation at first, and every
> image has its own requirements. More art than science if you are
> trying to get it right. Can't come up with a consistent recipe.
> But if unsharp seems to be working, keep doing it. 500% is a huge
> movement though, isn't it? I'm a bit too cautious perhaps. Maybe I
> just don't trust in this stuff enough.
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It's been fascinating reading e-mails from this group, although the
polymer plate discussions are way over my leaded head. You've become the
guru for this stuff, and impressively knowledgeable.
One quick piece of business. I am a member of the APHA board of
directors and at our last meeting I agreed to contact you about your lapsed
membership. Since you were the individual who encouraged me to join APHA a
number of years ago, I want to encourage you to renew your membership. Lots
of good things are happening, and we need all the support we can muster. Do
I suspect I'll see you next at Oak Knoll. Have a productive few last
gasp of summer, and early fall.
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