BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="henry link" data-source="post: 1616782" data-attributes="member: 6806">The light transmission graphic (below right) for the Nikon HG-L (LX-L) is from the Nikon Japan website. Compare it to the lower right square in the photo on the left. That's the photographic appearance of the color bias of the same binocular from post #25 in Photo Method thread I linked to. In the Nikon graphic the light transmission shows a broad peak centered around 640nm (orange/red). The photo shows an orange tint which is exactly what you would expect from the Nikon transmission curve. The optics act as an mild orange filter with a gentle slope that reduces transmission in the blue (470nm) by about 8% compared to transmission at 640nm.As an artist I can attest to the traditional use of "warm" and "cool" for the colors of the painter's palette. This has nothing to do with actual color temperature. It comes from the human emotional response to color which associates greens and blues with cool, shade, and darkness and yellows, oranges and reds with bright sunlight, flame and heat.</blockquote>