Messages in Seeing what the camera sees?

Message from dennybob

Sat, 10 May 2008 12:50:06 GMT

Seeing what the camera sees?
Her is some reading on the whole issue from another discussion board. Two links that might be of interest to some. I don't know if my eyes are just not good enough to see the differences in the brightness settings he is talking about or if my monitor just doesn't have the range of adjustment necessary to get the results he is describing. Another thing I need to consider is that I may be seeing things better here in Linux then when I am over in the windows side of this computer. I download my photos there and may need to do the calibration over there rather than looking at it here.

http://www.linux.com/articles/113936

http://www.argyllcms.com/

Message from Rolf Steinort

Fri, 09 May 2008 14:44:00 GMT

Seeing what the camera sees?
The most important part is to get the same image on your monitor as on mine. And that is only possible if we both calibrate with Monica, Adobe Gamma or a hardware tool.

Message from Larry Stamm

Thu, 08 May 2008 19:50:24 GMT

Seeing what the camera sees?
>I may look at what photographs I have made and say these are very under exposed and throw them out with the delete button, when in fact they may be a good exposure and the computer is not showing me what I really have.<

I think you are talking about monitor gamma adjustment, which is a much simpler matter than setting up a total colour managed workflow.

If your monitor displays photos differently from the lcd on your camera, try comparing the histograms in GIMP versus the histogram displayed by the camera. If the histograms are similar but the display is different, try adjusting the gamma of your monitor. The histogram of the photo does not change with changes to the gamma adjustment of the monitor.

Message from littletank

Thu, 08 May 2008 17:33:31 GMT

Seeing what the camera sees?
If you really want your camera and computer tuned to each other then I suppose you will have to go the route of photographing a standard image under standard lighting and working from there. I think I read somewhere that it is possible to buy the standard image and have the analysis carried out for you,

Message from dennybob

Thu, 08 May 2008 16:22:02 GMT

Seeing what the camera sees?
I agree with what littletank is saying in respect to the relationship of the computer to the printer being more important than the camera to the computer. However, if my camera and computer are not tuned to each other so that what I am seeing on the camera screen and what I am seeing on the monitor are the same, especially when my camera is telling me the exposure is correct, then how do I know which digital photographs need post processing in gimp or some other program. I may look at what photographs I have made and say these are very under exposed and throw them out with the delete button, when in fact they may be a good exposure and the computer is not showing me what I really have. On the other hand, I may be keeping alot of really bad shots, thinking they are good. I will not know they are truly bad until I go to print them out. I could collect years of bad exposures that way and be unaware.

Therefore, I think, in the digital age, it becomes very important for the camera, the computer and the printer to be tuned together so that what you are saving to your storage media is in fact a good photograph and so that when you do print out photographs you will not be surprised to find you have been saving the bad stuff and throwing the good out.

Message from littletank

Thu, 08 May 2008 14:29:30 GMT

Seeing what the camera sees?
I am not sure how important it is for my display to be an exact reproduction of what the camera saw. I recognise the need for display and printer to be synchronised but that can be done by trial and error without much expenditure. In the example of just looking at the image on the monitor you need to be aware of the tricks that the brain can play with regard to colour. I attended a lecture many years ago, in the days when photographers made colour transparencies and long before PCs were invented, on the subject of the psychology of colour.

Some of the tricks the brain can play were illustrated by items of white such as paper. You can do this yourself by viewing various makes of white paper in different forms of illumination such as sunlight, and artificial light. You expect the paper to be pure white so, whatever shade the paper may be near to pure white, it will always be pure white. If all this is true then what is the point of struggling to make the monitor screen appear to be true to life? I suggest that the only method that would give a true to life situation would be one that did not depend on human assessment.

Message from Larry Stamm

Thu, 08 May 2008 05:29:54 GMT

Seeing what the camera sees?
I use the Monica application to adjust my monitor (http://www.pcbypaul.com/software/monica.html). It allows me to get the gamma adjustment pretty acurate.

Message from jgsack

Wed, 07 May 2008 19:50:39 GMT

Seeing what the camera sees?
Not that I know anything about it, but here are some bookmark links on the subject:
---
NAME=Monitor calibration and gamma
URL=http://www.normankoren.com/makingfineprints1A.html

NAME=LCD & CRT Monitor Calibration and Color Adjustment by Eye or Colorimeter
URL=http://www.livingwithbugs.com/adj_mon.html

NAME=Monica
URL=http://www.pcbypaul.com/software/monica.html

NAME=CRT Monitor Calibration Guide
URL=http://td.rutgers.edu/~thayes/crt/

NAME=Adjusting Your Monitor
URL=http://www.scarse.org/adjust/

NAME=Calibration
URL=http://www.luminous-landscape.com/tutorials/calibration.shtml

NAME=AIM: Setting the Brightness and Contrast of the CRT monitor Accurately
URL=http://www.aim-dtp.net/aim/calibration/blackpoint/crt_brightness_and_contrast.htm
===end===

Message from Sebastjan Penko

Wed, 07 May 2008 19:17:29 GMT

Seeing what the camera sees?
Yap I would like to know this alse. And if you can tell me how to do that in Linux even better :)

Message from dennybob

Wed, 07 May 2008 19:01:38 GMT

Seeing what the camera sees?
I have noticed that even if I take what is a properly exposed photograph according to my camera settings and even though it looks great on the lcd of the camera, it will sometimes look very dark once downloaded to my computer. I would love to get huey or spyder to run on the computer to match the color profiles but, they are a bit pricey. Are there any alternatives? What do you run to keep everything in tune? Thanks