Well sure there are screens with 320ppi. Its called a Mac retina display or Dell 4k Sanyo 4k.
Also all you have to do is go to flickr to see a lot of pictures of bugs taken with even digital point and shoots that have all the iridescence.
even this video which is in a WAY smaller color space shows the beetle more correctly.
Its got to be something else.
On Tue, May 6, 2014 at 2:49 PM, karl shah-jenner <shahjen@xxxxxxxxxxxx> wrote:
Have you printed out the image? Screens can't display all color. Have you
looked at the image at 100% magnification on the computer screen? Screens
have only around 100ppi. Don't know if there are screens at 300ppi.
Roy
actually it's silly for us to expect to reproduce these colours anything approaching accuracy since they're not colours in th true sense (anyone remember that old polaroid positive film that allegedly created colours by diffraction?*) - the gamut is way out of the range of screen and print (most metallic colours are), but all of us that have experienced these types of images of feathers and insect fuzz have generally found film could capture colours closer to our perception than digital often has been able to do.
*http://www.google.com.au/patents/US4246338
actually here's something I've just thought of which wont solve the colour issue but could be interesting, stereo pictures of this type of iridescence might look a lot more realistic, as part of the sheen we see is from observing the diffraction generated colours from two separate points of view - one for each eye. being slightly out of phase creates the shimmer - stereo should capture that effect and give us a much more acceptable image
karl
