Fogging masks are an annoyance that every diver has had to deal with. Proper application of spit, anti-fog, whatever and care to not avoid the delicate layer of slime before or during the dive preoccupies too much time for me.
I recently received an anti-fog product sample called Sven Can See (I do not know who Sven is). The product is intended for more uses than just diving, but obviously that will be my focus here.
The application itself is quite simple: spray the dry lens once and use your finger to spread it around to cover the lens (sounds familiar, right?). The instructions state to cover both sides, but for scuba divers only the inside should suffice, as the outside is in constant contact with the water.
By the way, after reading our article about why masks fog and how anti-fog works, it should be clear how SCS is working.
The product then needs to dry for 10 minutes, which means anti-fog needs to be on your mind slightly sooner than you may be accustomed. To me, this was the only annoyance with the product, as I had to do a little more planning ahead.
However, once dry, you are good to go, which leads me to my favorite part: Sven Can See maintains the coating over multiple dives! This means no re-application before each dive.
I tried the product on a recent trip to Thailand, so I was curious just how many dives it would last before re-application was necessary. By the fifth dive my lens was beginning to fog in a few spots, enough where I considered myself inconvenienced. I should note that the first three dives were on a different day than the fourth and fifth.
From this quick test I would recommend that each morning the diver reapply the product and then forget about anti-fog for the entire day's dives. Then, when rinsing gear at the end of the day, rinse of the lenses well so that it is ready for application the next morning.
I did not go in to this with high expectations, but I think this is a substantially better system than using SeaDrops or spit or other products. The product is about twice as expensive, but given the reduced applications, should break about even or better.
Note: I noticed some poor product reviews from other divers. It is highly likely that these users did not apply the product properly. In particular, the lens must be dry before application and allowed 10 minutes. It does not need to be rinsed like traditional drops. I hope that helps some confused divers out there.
The crystal clear water feels warm on a beautiful sunny day. You look around at the stunning island scenery before you slowly descend below the calm surface. Excitement grows as you anticipate the vivid colors and active sealife.
You continue descending and begin to make out the shape of the ...
Kimi Werner, from the Discovery Channel program Pacific Warriors, has a, hmm, unique take on surviving close shark encounters. Listen to this short clip (1:43) to hear it in her own words:
It certainly sounds logical. Any shark scientists want to chime in on how accurate this is?
After breathing, there is perhaps no skill more fundamental than mask clearing. While other skills, such as gear assembly, are a requisite part of getting in the water, they technically could be done by someone else (although this is not recommended). Mask clearing, however, is a solo skill, and the ...
My wife and I have a modest use of the Spanish language that we used this past week in Cozumel, Mexico. It's always fun being able to interact with locals in their native language.
A big hurdle for beginners is simply learning vocabulary. As such, it is commonly recommended ...
One of the pleasures of running this site is that I get to hear from a variety of divers all over the world. At times these divers disagree with me, and I certainly appreciate hearing the different point-of-views these fellow enthusiasts have---even when I think they are wrong! ;)
In my ...
I recently wrote an "Ask an Expert" column for the July issue of Scuba Diving magazine, available at newstands now. You can also read it online here: Should Kids Under 12 Dive?
I take the stance that "no", they should not be allowed to dive. Share your thoughts, but please ...
The other day I wrote about decorating scuba equipment in an environmentally sound way.
Reader Marwah, who asked the original question, sent me an update. Apparently permanent markers washed off her fins, but paint markers worked great. There are two things I took from this:
- The importance of testing out ...
Reader Marwah asks,
"I wanted to know if you know of paints or markers or other mediums I can use on my gear that wouldn't be harmful to the coral or marine life. I want to put elaborate, colourful stuff on my fins to begin with but I don ...
I'm in the middle of a cross-country move and had to initiate a second round of DVD case reduction---they're just a huge waste of space. The inlined picture is a few of the cases I had to throw out. I put them in recycling, but who knows what ...