I took this UV photograph to quantify insects color including UV.
An insect is centered in this photograph.
However, I don’t know that this photograph is suitable to use.
Another picture is shown that RGB histograms of the UV photograph.
R and B histograms are seemed that be centered and well-balanced spread.
But G histogram is seemed that be leaning to the left and stretches upwards.
In this case, does it need to adjust that G histogram is also centered and well-balanced spread?
ISO was 1600 and shutter speed was 0.25s when I took this photograph.
Does it need to adjust ISO and shutter speed?
I took this photograph at 14:30, and the weather was sunny.
The camera that was used was Canon EOS7D (full spectrum) with Nikon EL-NIKKOR 80mm f5.6 and BAADER U-Filter 31.7mm, Kenko DR-655 Filter 55mm.
Sorry for my bad English.
Thanks in advance.
・UV photograph’s URL
・Another picture’s URL
As far as I can understand, the UV filter on your camera is blocking the wavelengths above 400nm. As only the blue and red sensor pixels have secondary sensitivity bumps below 400nm, these tend to be used for UV cone mapping and are the important ones. Or, in other words, yes, it is normal to have the G channel undersaturated. I hope this helps.