Digital BW, The Print

The OffsetGradient tif file (in the list files archive) is also very 
useful for diagnosing flat spot or breaks that can lead to 
posterization.  You can also use a softproof profile for your printing 
curves or profiles with this Offset gradient to preview potential 
problems in Photoshop without actually printing.  Here is a screen grab 
from PS showing the original Offset gradient file on top and a copy 
below with a softproof of a QTR printing profile applied.  The diagonal 
band that appears in the shadow area suggests that this particular 
profile needs some work:
http://homepage.mac.com/scho/offset.jpg

Carl
On Thursday, February 5, 2004, at 11:24  AM, Mark Hahn wrote:

> has anyone ever put together a comparison of the gradients produced
> by the different hex/quadtone inksets/workflows?  Stepwedges only
> show gross correctness and comments on best prints from each system
> only show the best that you can expect, but potentially hide gross
> flaws in each system.  Seems like this would be informative since a
> smooth gradient will show the entire tonal space and the smoothness
> that you can achieve... which is a realistic test as well since you
> just might want to shoot a sidelit white column sometime and might
> want to know in advance if your printer/setup will be able to output
> the tones or posterize them to death.  I understand that many users
> are emotionally attached to their chosen system, but... I am looking
> for the best system for me.  Using an 1160 and willing to change to
> any inkset/workflow that will produce the smoothest gradient (don't
> have the time, energy or money to purchase each and run exhautive
> tests myself...)
>
> Also, if this has never been done and people are willing to help I
> would collect results and then scan and publish them on the web.  All
> we'd have to do is agree on a standardized b->w gradient file to
> print to insure consistancy, have everyone print a copy and then send
> them to me.  I think it would be a great resource for the digital b&w
> community.  Please contact me on or off list if you are willing to
> participate.
>
> thanks for all advice,
>