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Lancer4545

Member Since 12 Oct 2009
Offline Last Active Apr 16 2013 02:50 AM

Posts I've Made

In Topic: Opaque Marks Around Edge of Dome

31 December 2012 - 01:32 AM

The marks go all the way around the perimeter of the glass moving toward the center at varing amounts as per the pic and not restricted to any particular location. It's definitely on the outside so there is no chance of the lens cap off gassing. I tried a commercial grade water stain remover at 50/50 and then 100% (as per the instructions) and it made no difference which is how I came to arrive at the conclusion it's not a mineral buildup.

I have paid particular attention to looking after the housing and the port. It's a big investment and one I hope will last me a lot longer!!

I'd say it has done around 90 dives mostly in seawater and a few in freshwater and has always been rinsed and dried after.

Regards,

Lance

In Topic: Opaque Marks Around Edge of Dome

30 December 2012 - 05:22 PM

Just curious, how is the glass fastened to the aluminum? Could it be left over sealant from assembly that's stained with salt water? looking at your photo it seams to have a smeared look like that. Are you sure it's on the outside? I can't tell from the image.


I'm not sure how it's sealed......The edge of the glass seems to have been ground to rough it where it's glued into a grove in the support plate. I have studied the marks and they are definitely only on the outside and go all the way around the port so it's not just in one place.

I hadn't noticed the marks before and it was only when I held it up to a light when I was cleaning it that I saw them for the first time.

Regards,

Lance

In Topic: Opaque Marks Around Edge of Dome

30 December 2012 - 02:50 PM

As suggested by Jean, I rubbed a small area with the marks with some hard water stain remover and it made no difference. I'm now waiting to hear from him what to do next.........

Regards,

Lance

In Topic: Opaque Marks Around Edge of Dome

27 December 2012 - 08:00 PM

The Mega Dome is a coated glass port....

In Topic: Opaque Marks Around Edge of Dome

27 December 2012 - 07:13 PM

My e-mail is jean@aquatica.ca, just shoot me a e-mail and i'll check on this tomorrow morning, I'm at home right now and a lot of the systems are down around here, we are going through a severe snow storm with over 45cm of snow, we actually beat a 40 years old record (which I am old enough to remember unfortunately, LOL)


Email sent...Thanks Jean

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