Archived posting to the Leica Users Group, 2006/09/09

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Subject: [Leica] Monitor brightness issues
From: leowesson at charter.net (leo)
Date: Sat Sep 9 16:31:46 2006
References: <000001c6d45b$1d2feb70$6401a8c0@DESKTOP>

Oliver,

I notice that your image

http://gallery.leica-users.org/v/OBRYK/LUG/06SaasFee16.jpg.html

doesn't have a color profile associated with it.  My guess would be  
that you are looking  at a profiled image on your monitor and however  
you  are saving your jpgs is stripping off your profile in not a  
happy way.

Leo


On Sep 9, 2006, at 4:58 PM, Oliver Bryk wrote:

> Several of our colleagues have been kind enough to call my  
> attention to the
> fact that some of my recently posted pictures are too bright, lack  
> contrast,
> show blown-out sky, or show similar discrepancies on their CRTs and/ 
> or LCDs.
>
>
> I am asking for suggestions regarding the source(s) of these visual  
> issues
> because I do not see them on my CRT monitor, a 5-year old Gateway  
> 19" VX900,
> possibly a rebranded Hitachi. The adapter is a NVIDIA GEForce 2  
> MX400 with
> the latest software release. I calibrate the monitor about once a  
> month,
> using the Nokia screen test software. I have my vision tested  
> annually. I
> edit my pictures in a room with very low ambient brightness, with  
> the shades
> drawn. My screen background is middle gray; the screen setting is  
> 1024x768,
> 32-bit color. I scan the negatives at 2000ppi on a Nikon 4000 with the
> current release of VueScan, save and edit them as TIFs, and convert  
> to JPG
> as the last step before transmitting them. The brightness of the  
> scenes on
> my monitor matches my memory of the location. I made the images in  
> question
> under fairly bright conditions, typically f/8 or f/9, at 1/250 on  
> Optima
> 100, dependably a real ISO 100 film. I did not include a color  
> reference
> chart.
>
> I do not have the technical or scientific background to fully  
> understand
> what, if anything, is happening to the colors in the sequence of
> transformations, and what might account for the differences in  
> perceptions.
> I shall be grateful for suggestions and/or explanations.
>
> Oliver
>
>
>
>
> _______________________________________________
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In reply to: Message from oliverbryk at comcast.net (Oliver Bryk) ([Leica] Monitor brightness issues)