I happily lobbed out a red pop-up into 22 ft of water last night and then I suddenly thought about what colour it is at that depth. I got on the web and all I could find out is that after 20 ft red can't be seen any more but I couldn't find out what colour it shows up as in that kind of depth. Is it grey? Green? Blue? Can anybody enlighten me?

In reply to Post #1
Black

Blue I believe

In reply to Post #1
BUT NOBODY HAS ASKED A FISH ?

Surely ? we dont know how fish see colours do we ?

In reply to Post #4
No Gerry we don't. I'm just curious about how they might look at depth.

In reply to Post #5
to you or the fish ?

In reply to Post #1
The deeper we go the darker it gets and saturation levels decrease. to the human eye, we can detect over 500 different shades of grey alone.

In reply to Post #6
Both really but we can't ask the fish

In reply to Post #7
>>>>>Over 500 different shades of grey alone.<<<<<<

I thought there was only one "50 shades of Grey" and then they did two follow ups, so by my reckoning, that is 150 "Shades of Grey" and 50 of them shades are "Darker".

In reply to Post #7
The eye of the carp is the most sensitive for wavelengths around 630nm. So, it isn't similar to what humans observe.