More mamba mods!

[azapa]

Originally Posted by foxfish

I still have a few things to finish but what do you think of - Red camo!

completely space age foxy, very cool, "the flying raspberry"?

[Magpie]

So practising you breath holds to go deep then mate? Otherwise its just going to be bright red, but maybe the fish will think "whats that cool red thing?" and come closer for a look at the funky object!

Does that poor test gun actually still work after all you've put it through?

[settingsteel]

Originally Posted by foxfish

I still have a few things to finish but what do you think of - Red camo!

Reminds me of the cinnamon candy canes

[Pastor]

Red camo is cool. I didn't notice any adverse effects whatsoever when using mine. Apparently most fish aren't sensitive to red light so they will only see the shade given by it's colour temperature, very similar to kelp. So while the gun is bright red to us it is kelp coloured to fish. Proven? Well no but every test seems to bear that out.

[Old Man Dave]

Red is one of the first colours to be filtered out by light passing through water. Cut yourself at more than about 15 foot underwater and your blood flows green. Just an optical effect of the redlight being filtered out but looks soooooo weird. Finishing off big ray caught commercially on scuba in 100 foot I was always fasinated by the little puff of "black" blood from a knife to the brain.

I get a really strange effect with my orange SMB line. On the surface its bright and clearly visible but if you peer along it as it goes down in the water to an anchor weight or whatever it changes colour. In fact in 25 foot it goes mainly grey making it very hard to see.

Camera will not record any red much below 10 foot in UK waters without a flash. Would be interesting to take a natural light pic of a red cammo gun at say 15 foot deep.

Here endeth the physics lesson (I need to get out more )

Dave

[fer_abella]

I own an use one of these mamba 90. I use also a stealth 85.

I am a lot more interested in the new "wood handle" than the PVC pipe "mod".

How can you manufacture it and wich problems did you encounter?, specifically refering to the more difficult part, the curves in the part near to the body of gun.

[Magpie]

The effects of water filtering the red light has been discussed at great depth elsewhere so the only thing I'm going to say is one of my guns has big bright red lettering on it, and I've been sat on the bottom in 10m and the letters were still bright red.

[Old Man Dave]

The filtering of red light at depth is a definite fact. Tom, you may well see red lettering at that depth as some peoples eyes are more sensetive (as are some cameras), also the filtering is effected by water clarity. Then there is the brain thing. You know the lettering is red so you see red. Actually the idea of colour is one of those philosophical arguements. How does anyone know that what they think of as red is what other people think of as red?

What I do know though is in the type of vis we generally have, certainly once you are down a bit deeper, say 50 foot, then even on the brightest clear water day and with X-ray eyes you wont see any red.

Dave

PS I'm as you know I'm as blind as a bat so what do I know?

[Magpie]

Oh I know its a fact Dave, I just question the depth at which it has a major effect. Your physcological point is interesting and may have had some influence, but on the occassion I'm talking about I was looking closely at the lettering to see how it changed as I dived.

But then Podges argument that fishes eyes are not sensitive to red because its not in the spectrum they usually encounter would make that all irrelevant, just like US hunters wearing bright orange because their quarry don't perceive it.

[foxfish]

Dave what about the light pipes we got from Podge? I could see what I thought was red at 10' for sure?

[Old Man Dave]

Yes, I think water clarity is the main factor in determining exactly at what depth the effect starts being noticable. Many, many times I've seen fish and my own blood run green but that has been on scuba and probably between 50 and 100 foot. Below 100 I have seen it turn black as I said before.

The shallower water usually asociated with freediving plus the lack of time to simply sit and stare probably limits the effect as well. I can't say I've ever been noticably aware of it while snorkelling except for the aforementioned effect on my orange line. However, Tom, you have actually tried to observe the effect so you have one on me there.

Be interesting to video a red rope as you dive deeper or even to try filming that red lettering. That would be an interesting experiment. Sorry got into "sad" teacher mode there for a minute .

Dave

[foxfish]

Originally Posted by fer_abella

I own an use one of these mamba 90. I use also a stealth 85.

I am a lot more interested in the new "wood handle" than the PVC pipe "mod".

How can you manufacture it and wich problems did you encounter?, specifically refering to the more difficult part, the curves in the part near to the body of gun.

I can take some photos to show you how tomorrow but it is not that difficult, i used a paper template & four separate pieces of wood.

[foxfish]

Dave it is a fact that red is the first colour to start fading but i dont know at what depth it actually becomes invisible to our eye sight? There must be many variables?

[Spaniard]

Red cammo is more and more common on wetsuits so must be something about it???? Red is the new black?

[Pastor]

Does it matter if it's the first colour to be filtered out? If fish see it as brown or something dull in the surface layers then that's what matters