Luminous Landscape Forum
Equipment & Techniques => Digital Cameras & Shooting Techniques => Topic started by: samirkharusi on December 05, 2006, 10:09:00 am
-
Pushing the envelope of pixel peeping. Yes, you can even check out the spectral behaviour of those Bayer arrays. Check out the last section:
http://www.samirkharusi.net/spectrograph.html (http://www.samirkharusi.net/spectrograph.html)
Now, why are the Red pixels so active in blue wavelengths and yet the color rendition of a standard 1Ds is still very decent?
-
Now, why are the Red pixels so active in blue wavelengths and yet the color rendition of a standard 1Ds is still very decent?
Because the spectral response of the sensor is shaped to represent a linear combination of the human cone sensitivities and the XYZ matching functions, respectively. At least that should be the design goal: http://www.outbackphoto.com/tforum/viewtop...hp?TopicID=1929 (http://www.outbackphoto.com/tforum/viewtopic.php?TopicID=1929)
Don’t worry, such overlap finally speaks for a large gamut.
Peter
--
-
Pushing the envelope of pixel peeping. Yes, you can even check out the spectral behaviour of those Bayer arrays. Check out the last section:
http://www.samirkharusi.net/spectrograph.html (http://www.samirkharusi.net/spectrograph.html)
Now, why are the Red pixels so active in blue wavelengths and yet the color rendition of a standard 1Ds is still very decent?
[a href=\"index.php?act=findpost&pid=88793\"][{POST_SNAPBACK}][/a]
Greetings Samir ! Fancy meeting you here !
Doesn't human vision have such a "second hump" ? Two camels and a dromedary - or is it the other way round ?
Edmund
-
Greetings Samir ! Fancy meeting you here !
Doesn't human vision have such a "second hump" ? Two camels and a dromedary - or is it the other way round ?
Edmund
[{POST_SNAPBACK}][/a] (http://index.php?act=findpost&pid=89063\")
Seems that the leakage of one color into another color's pixels depends on the camera model. The 20D is quite different from the 1Ds. I have added more data on a modified 20D, with its UV/IR blocker removed for astro use, bottom of:
[a href=\"http://www.samirkharusi.net/spectrograph.html]http://www.samirkharusi.net/spectrograph.html[/url]
The Infra Red also picks up different colors depending on wavelength. A color bar extending from 4000 to 10,000 Angstroms is shown.