This page is copyright (c) 1996 Stanley Rowin. It is used at this site with his permission. Please do not download or copy without acquiring his permission.
The point of this page is to tell you whether your internet provider, your software, and hardware are conspiring to take away something from viewing this and other photography sites in the best possible manner.
The image below should appear as a rainbow starting and ending with red.
There should be a smooth transition from color to color with no banding and no little dots.
The following image is not a smooth transition. If you have only limited
colors ( i.e. 16 levels of color) the above rainbow would look something like this:
or like this
Ok, that's color, now let's deal with gamma, and contrast.
Below are some boxes, one should be absolute black. Nothing on your monitor should be darker than the black box. Look at the black border around your monitor. It should be as black as that box. And nothing should be lighter than the white box. The grey box and the white box should have no tint to them. No pink or blue! in them. No pink or blue!
this is a 10 section step wedge to allow you to check that you have a full chromatic scale
available on your monitor. You should be able and see the 10 separate tones going from an all white to a total black.
Step back from your monitor.
One of these numbered boxes is about the same shade as the surrounding.
That's your "screen gamma." Most photographer's web pages are designed for
1.8 Gamma. TV monitors are calibrated for 2.2 Gamma.
How did you do?
This section used with permission of
He has offered to help you out if you contact him. For help "tweeking" your screen.
Stanley Rowin can be reached at (617) 437-0641, or at
or you can visit Stan's web site.