On Sat, 25 Feb 2012 23:12:50 -0800, you wrote:

>On Sat, 2012-02-25 at 23:41 -0600, Jon Elson wrote:
>> > On Saturday, February 25, 2012 02:36:41 PM Kirk Wallace did opine:
>> >   
>> >>  I also have my father's darkroom
>> >> equipment, but getting it all working again could be a whole other
>> time
>> >> and money sink.
>> Well, getting enough working to contact print some litho film from
>> some sort of master, perhaps a laser printer output,
>
>I don't think laser printer output is nearly fine enough for .005" lines
>and spaces, at least for a contact print.

Most have a resolution of 1200 dpi in mono. I've done PCB masters on
transparency film with 5 thou lines for contact printing (UV) then
etching. 

Steve Blackmore
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