QTR-Quadtone RIP

Lou

I have calibrated the screen using the i1 and linearised the QTR using
the i1 so I was hoping for some consistency.   The X-Rite XR Pro
software that I was using for screen calibration gave a range for
screen brightness, whereas i1 Match specifies a precise value.  I may
opt to set it below this level, but first, given the issues with the
i1 reading the step wedge in another thread, I think I will start
again and proceed carefully.

Thanks

Ferdinand

--- In QuadtoneRIP@yahoogroups.com, "Louis Dina" <lou@...> wrote:
>
> Ferdinand,
> 
> Blocked up shadows in prints (compared to your monitor) is often due 
> to setting the monitor luminance too high.  Some software vendors 
> recommend very high monitor luminance, which I consider too high.  
> 
> If you have an accurate printer profile, I would generally trust it 
> to reproduce fairly accurately.  Your Eye One will read the luminance 
> levels accurately and translate those into a profile, with correct 
> density and color (not perfect, but very close).  There are really 
> no "user settings" that can skew your results.  
> 
> With monitors, however, the user can choose both the luminance level 
> and the color temperature, which can influence the final display.  If 
> your monitor is set to a luminance above 100 cd/m2, this could be 
> your problem.  Your image will appear very bright, and during 
> editing, you may be inclined to darken the tones in Photoshop.  These 
> edits end up in your final numbers, and ultimately in your print.  
> You would need to view your print under bright lighting to get a good 
> match.  When viewed under less brilliant lighting, shadows can look 
> very dark, blocked up, and with little separation.  
> 
> Try calibrating your monitor to about 90 cd/m2 and then compare your 
> monitor to your print and see if this improves your match.  
> 
> Lou