Truelight Color Vision Test
- Posted by Daniel Flück on August 7th, 2009 filed in Tests
- 7 Comments »
Certain jobs in the film industry definitely require very good color vision. If you need to adjust specific hues and find a good balance of the colors in a picture, color vision deficiency would be quite a big handicap.
Just the other day I took a picture of a rainbow. It was such a beautiful one, but I couldn’t see the color spectrum so I had to ask my son, if it is really a nice one where you can spot the whole color spectrum. The same would happen if I would work as a professional in the film industry: Either I could ask somebody for help or I just would fail. My color blindness is just to strong to deliver good work.
Vision Test
FilmLight is a leading company in the film industry and provides a simple online color blindness test on their website. This way you can perform a first check if you are ready to work with moving pictures. Can you spot the T? Check out their website to see the whole Truelight color vision test picture.
This color blindness test picture consists of three lines each showing six T’s. Four of them should be visible and you should be able to tell their orientation. You should also be able to guess the fifth correctly and the sixth is just visible under perfect conditions. The three lines of T’s relate to the three different types protan, deutan, and tritan color vision defects. The test is based on the color blindness confusion lines.
You can’t see anything? — No worries. I can only spot two T’s in the last line. Only if I bend my laptop display back and forth I see two more T’s, but not more.
If you did like this kind of test make sure to check out my color blindness tests or have a look at some other color vision tests online available.
August 8th, 2009 at 8:42
I see the two down/left… others don’t exists and they just make it up… ;-)
August 8th, 2009 at 20:28
I can see the first two “T”s on the bottom row – and that’s it.
After that it’s just grey squares.
August 21st, 2009 at 6:43
I can only see two T in upper left and lower left corner plus a very few isolated squares with some color close to them.
It says red, green and blue however to my eyes the red (upper left T) looks pinkish-tannish and the blue totally looks light purple to me. Not even close to what I would call blue..
August 22nd, 2009 at 22:55
I see all but the rightmost blue T. But that’s just because my monitor isn’t calibrated.
Seeing the two rightmost letters of each row is a problem to everyone, even color normal people unless the hardware is well calibrated.
September 8th, 2009 at 4:54
Yes.. true light color vision test is essential. From business point of view, a person should know exactly what he is seeing.. Including the color. That’s why they keep these tests…
Angeline @ marcus evans scam
October 2nd, 2009 at 3:54
I see 2 ts for protanopia and deuteranopia, and only 1 blue one (i have tritanomaly)
December 2nd, 2009 at 11:36
Albedo (comment 4) says: “I see all but the rightmost blue T. But that’s just because my monitor isn’t calibrated.”
I don’t think the monitor calibration is the problem here. The test was designed to be used with uncalibrated monitors, provided the gamma is roughly right for near-greys, and the RGB primaries match the video primaries.
I have trouble with the last blue T myself (the colours aren’t actually red, green or blue, but I have made them as close as I could to the corresponding primary). For the bottom line, you may need to get closer to the screen so you are using more of your peripheral vision, and defocus your eyes a bit so you are not distracted by your macular vision.
Even so, too many people with good colour vision seem to have problems seeing the last blue T. I wonder whether the CIE observer model attributes too much sensitivity to the S (short wavelength = blue) receptor.