Hi
I just recently bought a pair of Nikon Monarch 8x42 for the other half and they are very pleased with them. As they're not mine I've not really peeped through them much.
However I've just picked them up to look at some faraway birds (fieldfares I think), sitting in the tops of some bare-leaved trees silhouetted against a grey sky. I find that the branches/birds look as though they have a green halo around their edges - what causes this, and is it 'natural' to the bins or is there a fault?
Thanks.
It sounds like it is Chromatic Abberation (spelling?). This occurs because not all of the colors of the light spectrum are brought back together after passing through all of the glass surfaces. It is usually the most noticeable on high contrast objects (dark on light) as you have already found. If there was one drawback to many of the mid-priced roof prism glasses on the market it is the amount of CA that they exhibit. Not everyone sees it though.
[QUOTE=FrankD]It sounds like it is Chromatic Aberation....Not everyone sees it though.[/QUOTE]
Cheers for that. I particularly wondered because the 'effect' wasn't there when I looked through my cheap 2nd hand Tokina 8x30s.
Do you mean literally some people can see it and others not?