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What shall I see through my XP full of water ?

Thread Status: Hello , There was no answer in this thread for more than 60 days.
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S

subaquaticus

Fond of the Red Sea
Oct 10, 2004
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I am on the verge of buying a pair of XP Seal (18 €) ; I already had bought a pair of Seal (Aquasphere) but I had abandoned them because of leakage...

Three interesting characteristics of those XP

1. an amazing suction effect which seems to guarantee a perfec watertightness in "normal use" ;

2. a bit larger than the normal googles but smaller than the normal "Seal" they apply onto the not too close surroundings of the eyes (bony part) which are less vulnerable to strong pressures...

3. not only the glasses but also the part which applies onto the skin is transparent, which gives an amazing visibility !


First question : do you think that these goggles being larger and applying onto less vulnerable parts will allow me to go a little deeper than with small goggles in "normal" use (that is with air inside), let's say 7-8 m without being hurt in the eyes ?

Second question : having acquired a paradisia nose-clip, I shall try using my XP with saline water inside (0.9 g/l : a great spoon of salt in one liter water) ; opening my eyes in my XP filled with water....

WHAT SHALL I SEE ?
 
A blur.
You need to have lenses to compensate for the refractive difference of water.
maybe scleral lenses are to expensive?
 
Huan said:
A blur.
You need to have lenses to compensate for the refractive difference of water.
maybe scleral lenses are to expensive?
Click to expand...

Is this blur sufficiently clear to allow for constant weight ?
 
1. I think 7-8m is a bit too much. I would say 5-6m max. And you'll have dark circles around the eyes and you'll definitely feel strong pressure. I am not sure if you'll be gaining anything. Your facial skin will be sandwiched in between the goggles and the bone.
I am not even sure what is the whole point of diving with goggles filled with air to 7-8 m.

2. You'll see something like having no goggles at all.
 
octopus said:
dark circles around the eyes
Click to expand...
in this regard, do you think that the "Seal" type is better for the eyes than the normal "small" goggles... ??
octopus said:
I am not even sure what is the whole point of diving with goggles filled with air to 7-8 m.
Click to expand...
While doing a gentle swimming session in the sea, you might want to improvise a gentle diving...
 
You could have a swimming session with a mask and this way keep open for any eventuality that may make you want to dive deeper than a few meters. Personally I find masks a whole lot more comfortable than goggles. Who knows, imagine ou see a gold watch at 12 meters!
 

In winter I freedive 100% in swimming pools... ; I tried swimming with masks... it gives me an impression of hydrodynamic drag...

If I do the huge investment (29 €) buying a paradisia, then I shall make use of it !

I would appreciate doing Valsalva hands free...
 
in this regard, do you think that the "Seal" type is better for the eyes than the normal "small" goggles... ??
Click to expand...

pressure (goggles to the skin)=force (resulted as difference from water pressure and air pressure in the goggles)/area (goggles contact area with skin)

Increase the contact area with the skin and less damage you'll do.
I always thought the constraints on contact area were too tight compared to the force increment to make much practical difference. If you try it, tell us what happens.

If you want to test the theory before you buy the goggles, you can put the clip on your nose, put normal diving mask on and do few dives. In such way you can equlise your ears, but not equlise your mask. And normal diving mask has bigger contact area that goes far from eyes.
 
Reactions: subaquaticus
octopus said:
pressure (goggles to the skin)=force (resulted as difference from water pressure and air pressure in the goggles)/area (goggles contact area with skin)
Click to expand...
if the eyes are greater, then the force is also greater
octopus said:
Increase the contact area with the skin and less damage you'll do.
Click to expand...
in fact the question is not the surface of contact but the fact that the zone of the face (out of the orbites) where this contact zone applies is less sensitive because it is bony whereas the orbites are not
 
Last edited:
I only wanted to help, not to go into argument. I told you how to test if XP is going to be good for your purpose. Have it your way Mr Bernoulli and try wearing knife sharp edges on your mask. :duh
 
If you can't afford fluid goggles, there is another way to dive hands free.

You can use a mask, with a nose clip outside the mask.

I have taken a Sphera mask to 40m without equalizing the mask, using the nose clip outside. I also took a cressi big eye to 23m in a similar fashion. Some masks like the cressi superocchio and the aqualung falco are highly incompressible and cannot be taken below 10-11m without equalizing them. The sphera is, by far, the most compressible mask I have ever tried.

I'm not sure how deep you could go with seal XP goggles though.
 
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