Standard white balance rainbow

[lukaszgryglicki]

Hi, does anyone have a rainbow of how all detectable wavelengths record on a full spectrum converted camera using white balance recommended on this forum? Something like https://www.ultravioletphotography.com/content/index.php/topic/2828-mercury-hg-lamp-spectrum-lens-test-lomo-t-43-40mm-f4/

 

I 1-dimensional line that lists wavelength and its color as seen from PTFE white-balanced photo?

In visible spectrum that would be 400nm (violet) -> indigo -> blue -> teal -> green -> lime -> yellow -> orange -> red 700nm

In IR this becomes more and more pink and finally gray (the same response in all RGB channels - almost transparent after 830 nm) in UV it seems to be a lot more complex going down from 400 to 300 there are many false-color changes and then finally mostly blue till end of sensor response?

 

Ideally I would like to "see" a 10x1000 image just showing (false)color change as wavelength changes.

[Andrea B.]

You are asking for a spectral map of wavelength to false color?

(No white balance applied for this.)

 

We have a UV map here for a Panasonic G3: http://www.ultraviol...age__hl__sascha

The map is accompanied by a long discussion about why it is difficult to map false colors uniquely back to a specific wavelength.

 

And here is a UV and IR map by Shane Elen for an old Nikon 70: http://www.beyondvis...UVNikonD70.html

 

 

Once you look at those maps of wavelength to false color, then you can figure out what happens when it is white balanced according to some standard.

 

ALSO, before I forget, search on the term "Sparticle". Using UV-pass filters with different peaks you can make a wavelength-to-white-balanced color map for a given lens + camera combination.

 

Cadmium has made many Sparticle photos because he is the one who made the first Sparticle here on UVP.

This link to a sparticle is for the excellent little Kuri 35/3.5 whose UV-capability was also a discovery of Cadmium's: #17

 

Here is one from JMC. #75

 

And there is another one which Jim Lloyd made. https://www.ultravio...-monochromator/