[scribus] 600 dpi

Mike Sleger chappa-ai at q.com
Tue Jun 7 13:35:50 UTC 2011

I sometimes print to film instead of paper for the purpose of photolithography in printed circuit board (pcb) manufacturing at home.  The UV processing of photosensitive boards requires high pattern opacity and also high resolution.  Although I've never created film masks greater than 1200 dpi, this resolution is still 4x higher than the suggested 300 dpi maximum.  300 dpi would simply just not print good enough for a good photomask.  I've been told at the printer that clients also use films for offset-printing purposes in the 3600 dpi range.  My old eyes can't see pixels that small.

On Jun 7, 2011, at 7:24 AM, Gregory Pittman wrote:

> On 06/07/2011 09:03 AM, Tom Connolly wrote:
>> Someone recently posted he has his tiffs at 600 dpi. AFAIK, no printer needs--indeed can use--more than 300 dpi. At 600 all you're doing is making a bigger file, with no benefits of sharper images.
> I think this  is a bit of a distortion. For _most_ purposes, 300dpi should be adequate.
> For high-resolution printing commercially, 600 or even greater may be desired. I'm not sure that once you get to 1200+ that it gets so easy to see further improvement in the visible quality, unless you're talking about printing to a very large format.
> Greg
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