Thanks. I bought a mask that would take prescription lenses. The sales girl popped out the lenses and installed generic prescription lenses that I previously tried. That was the best choice I ever did for diving. I was so impressed that I could see clearly underwater. 15 years later, I'm still using the same mask, but now I am having trouble seeing my dive computer. I'm in for custom made bifocal lenses real soon to overcome my poor eyesight limitations. Thankyou//Bob.
So lets say mine is complicated and u said i have to customize it and its expensive can you give me a idea about it how expensive is this? Give me a range 200-300 usd?
Great video mask, and a great question also! I learned to dive 14 years ago, and I still have the mask I used back then ( with updated lenses ) and that’s become my dedicated backup mask that I take on every dive. My ‘normal, mask is the Apeks VX1
Thank you again for the fantastic videos. #askmark 2 questions today. Firstly, if I were going to order lenses based on my prescription, would I subtract anything (a percentage perhaps) to accommodate the natural effects of water? And second, do you know if this would be possible for a FFM such as the Neptune III. [I am blind in 1 eye and aging sight in the other]. I am looking for the best options available. Keep up the excellent work!
1. No, the lens powers take the magnifying effect of water into account so, choose the power that matches your prescription. Just remember that they only correct the SPH 2. Yes, Ocean Reef make an Optical Lens Support (OR033304) that can hold prescription lenses.
The average speed of a diver finning to get to a point is probably going to be around 1knot. Casually finning is going to be much less and maximum effort might get you up to 2knots for a short period. You can work out your own speed quite easily with a stopwatch and a known distance. If you know the exact distance between two points, measure the time it takes you to swim that distance and you can work out your speed but it won't be particularly fast without a DPV.
If your prescription is changing quite a lot I looked at the full face option with an insert, although expensive to start any optician should be able to get you regular lenses put in at a fraction of the cost….I think in the UK it works out at the equivalent of three masks before it’s paid for itself
#askmark Hi Mark, I'm a beginner with only 15 dives. The descending is quite frustrating. Usually I start to roll to my right as soon as I'm under water. My only fix is to turn 180 and descend that way. Of course I lose sight of my dive buddies this way so I'd like fix this issue. Can you give an advice?
Rolling is usually due to heavy cylinders on your back, too much trim weight high up away from your back or asymmetrical weight distribution. If you move some of the lead on your weight belt further forwards that might help. And spend some time with a buddy in safe shallow water, moving lead around until you're comfortable.
@@ScubaDiverMagazine I appreciate your help Mark!🙏 I enjoy watching your videos and I've learned a lot from them. I bought my high-vis 10mm hood after your recommendation. Everyone at the dive shop told were pretty impressed with it and said it's an awesome hood. Thank you Mark! All the best! Sincerely, Zoltan
…..also, be sure to snug up your lower BC belt as you descend. Your wetsuit compresses, so your BC belt may be too loose. That’ll throw you off side to side.
I've only really heard of Hydrotac and Optx. They're not permanent though and need replacing every now and then as they float off. It may be worth asking around for divers that use them. I've never needed lenses myself so I can't verify long-term use.
#askmark Additional question about prescription lenses in divemasks. Treat your back up mask the same way, as your primary mask, I‘ve been taught that well. What’s your opinion on prescription lenses in the back up mask? Especially in terms of being the best back up for me vs. being back up for my buddy as well.
It depends... but it's an awesome question to consider. Your backup mask can be for you _or_ another diver who may not need corrective lenses. If *you* wouldn't be able to see *at all* , even with a standard mask, I'd fit lenses. If you could see enough to get you back to the surface I'd stick to a standard mask.
It's for when I need to demonstrate the Martini Effect... The basic story is that I ended up with two of them and I just kept the spare on the set because it has an octopus on it.
![[DRIP] ‘Woke Up In Tokyo (RUKA & ASA)’ PREVIEW](http://i.ytimg.com/vi/QN44lcR_VkI/mqdefault.jpg)
Not strictly what they asked, but diving with contact lenses is an option too. I prefer them unless I anticipate doing mask removal drills.
Thanks. I bought a mask that would take prescription lenses. The sales girl popped out the lenses and installed generic prescription lenses that I previously tried. That was the best choice I ever did for diving. I was so impressed that I could see clearly underwater. 15 years later, I'm still using the same mask, but now I am having trouble seeing my dive computer. I'm in for custom made bifocal lenses real soon to overcome my poor eyesight limitations. Thankyou//Bob.
Which glasses was this?
Thanks Mark! This was a great help
So lets say mine is complicated and u said i have to customize it and its expensive can you give me a idea about it how expensive is this?
Give me a range
200-300 usd?
Great video mask, and a great question also!
I learned to dive 14 years ago, and I still have the mask I used back then ( with updated lenses ) and that’s become my dedicated backup mask that I take on every dive. My ‘normal, mask is the Apeks VX1
👍😎🤿! Thanks Mark I wear corrective lenses and this is a big help!
Thank you again for the fantastic videos. #askmark 2 questions today. Firstly, if I were going to order lenses based on my prescription, would I subtract anything (a percentage perhaps) to accommodate the natural effects of water? And second, do you know if this would be possible for a FFM such as the Neptune III. [I am blind in 1 eye and aging sight in the other]. I am looking for the best options available. Keep up the excellent work!
1. No, the lens powers take the magnifying effect of water into account so, choose the power that matches your prescription. Just remember that they only correct the SPH
2. Yes, Ocean Reef make an Optical Lens Support (OR033304) that can hold prescription lenses.
Thank's for the video.
#ASKMARK I was wondering what is the speed we have when diving without current?
The average speed of a diver finning to get to a point is probably going to be around 1knot. Casually finning is going to be much less and maximum effort might get you up to 2knots for a short period.
You can work out your own speed quite easily with a stopwatch and a known distance. If you know the exact distance between two points, measure the time it takes you to swim that distance and you can work out your speed but it won't be particularly fast without a DPV.
If your prescription is changing quite a lot I looked at the full face option with an insert, although expensive to start any optician should be able to get you regular lenses put in at a fraction of the cost….I think in the UK it works out at the equivalent of three masks before it’s paid for itself
#askmark
Hi Mark, I'm a beginner with only 15 dives. The descending is quite frustrating. Usually I start to roll to my right as soon as I'm under water. My only fix is to turn 180 and descend that way. Of course I lose sight of my dive buddies this way so I'd like fix this issue. Can you give an advice?
Rolling is usually due to heavy cylinders on your back, too much trim weight high up away from your back or asymmetrical weight distribution. If you move some of the lead on your weight belt further forwards that might help. And spend some time with a buddy in safe shallow water, moving lead around until you're comfortable.
@@ScubaDiverMagazine I appreciate your help Mark!🙏 I enjoy watching your videos and I've learned a lot from them. I bought my high-vis 10mm hood after your recommendation. Everyone at the dive shop told were pretty impressed with it and said it's an awesome hood. Thank you Mark!
All the best!
Sincerely,
Zoltan
…..also, be sure to snug up your lower BC belt as you descend. Your wetsuit compresses, so your BC belt may be too loose. That’ll throw you off side to side.
#askMark what stick on mask lens do you recommend? I just need something to help me see my compass and SPG
I've only really heard of Hydrotac and Optx. They're not permanent though and need replacing every now and then as they float off. It may be worth asking around for divers that use them. I've never needed lenses myself so I can't verify long-term use.
Thanks Mark for answering I appreciate it
#askmark
Additional question about prescription lenses in divemasks. Treat your back up mask the same way, as your primary mask, I‘ve been taught that well. What’s your opinion on prescription lenses in the back up mask? Especially in terms of being the best back up for me vs. being back up for my buddy as well.
It depends... but it's an awesome question to consider.
Your backup mask can be for you _or_ another diver who may not need corrective lenses. If *you* wouldn't be able to see *at all* , even with a standard mask, I'd fit lenses. If you could see enough to get you back to the surface I'd stick to a standard mask.
#askmark not an scuba question, but why there is a cocktail shaker (top right) on the shelf? 😂
It's for when I need to demonstrate the Martini Effect...
The basic story is that I ended up with two of them and I just kept the spare on the set because it has an octopus on it.
4:10 The are called Bows
COOL LICK @ START OF VID
First